Meetings & Events

 

2007 MRS Spring Meeting Logo2007 MRS Spring Meeting & Exhibit


April 9-13, 2007
| San Francisco
Meeting Chairs: Timothy J. Bunning, Harold Y. Hwang, Debra Kaiser, Jennifer A. Lewis

Symposium Y : Thin-Film Compound Semiconductor Photovoltaics

2007-04-10   Show All Abstracts

Symposium Organizers

Timothy Gessert National Renewable Energy Laboratory
Sylvain Marsillac University of Toledo
Takahiro Wada Ryukoku University
Ken Durose Durham University
Clemens Heske University of Nevada-Las Vegas
Y1: Growth and Performance of Compound Thin Film Solar Cells
Session Chairs
William Shafarman
Takahiro Wada
Tuesday AM, April 10, 2007
Room 2024 (Moscone West)

9:30 AM - **Y1.1
Challenges in Understanding Chalcopyrite Semiconductors for Photovoltaics.

Hans-Werner Schock 1
1 Solar Energy Technology, Hahn-Meitner-Institut, Berlin Germany

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10:00 AM - **Y1.2
Progress in CIGS Solar Cell Processes and Characterization.

Shigeru Niki 1 , Syogo Ishizuka 1 , Kei-ichiro Sakura 1 , Koji Matsubara 1 , Akimasa Yamada 1 , Hitoshi Tampo 1 , Hisayuki Nakanishi 2 , Norio Terada 3
1 RCPV, AIST, Tsukuba, Ibaraki, Japan, 2 , Tokyo University of Science, Noda, Chiba, Japan, 3 , Kagoshima University, Kagoshima, Kagoshima, Japan

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10:30 AM - Y1.3
A Novel Laser-Assisted Deposition Technique for CIGS Thin Films and Solar Cells.

Tokio Nakada 1 , Keita Nozawa 1 , Yasuyuki Ishii 1
1 Electrical Engineering and Electronics, Aoyama Gakuin University, Sagamihara Japan

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10:45 AM - Y1.4
A Liquid Precursor Approach to CuInSe2 Based Photovoltaics.

Jennifer Nekuda 1 2 , Maikel van Hest 2 , Calvin Curtis 2 , Alex Miedaner 2 , Ryan O'Hayre 1 , David Ginley 2
1 Metallurgy and Materials Engineering, Colorado School of Mines, Golden, Colorado, United States, 2 , National Renewable Energy Laboratory, Golden, Colorado, United States

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11:00 AM - *
Break

11:30 AM - **Y1.5
Development of Bi-facial CdTe Solar Cells on Glass and Polymer Substrates.

Genadiy Khripunov 2 , Alessandro Romeo 3 , Hans Zogg 2 , Ayodhya Tiwari 1 2
2 Thin Film Physics Group, ETH Zurich, Zurich Switzerland, 3 Faculty of Science, University of Verona, 37134 Verona, Italy Italy, 1 Electronic and Electrical Engineering, Loughborough University, Leicestershire United Kingdom

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12:00 PM - Y1.6
Preparation of Cu(In1-xGax)Se2 Thin Films and Solar Cells Using a Se-radical Beam Source.

Shogo Ishizuka 1 , Akimasa Yamada 1 , Hajime Shibata 1 , Keiichiro Sakurai 1 , Paul Fons 2 , Koji Matsubara 1 , Shigeru Niki 1
1 Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki Japan, 2 Center for Applied Near-Field Optics Research, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Japan

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12:15 PM - Y1.7
Temperature-dependent Degradation Modes in CdS/CdTe Devices.

David Albin 1 , Samuel Demtsu 2 , Anna Duda 1 , Wyatt Metzger 1
1 PV Devices and Electronic Materials, National Renewable Energy Laboratory, Golden, Colorado, United States, 2 , SoloPower Inc, Milipitas, California, United States

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12:30 PM - Y1.8
Investigation of ZnO:Al Doping Level and Deposition Temperature Effects on CIGS Solar Cell Performance.

Joel Duenow 1 2 , Timothy Gessert 2 , David Wood 1 , Brian Egaas 1 2 , Rommel Noufi 2 , Timothy Coutts 2
1 Dept. of Physics, Colorado School of Mines, Golden, Colorado, United States, 2 , National Renewable Energy Laboratory, Golden, Colorado, United States

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12:45 PM - Y1.9
InGaAs Solar Cells Grown on Wafer-Bonded InP/Si Epitaxial Templates.

James Zahler 2 , Katsuaki Tanabe 1 , Corinne Ladous 2 , Thomas Pinnington 2 , Frederick Newman 3 , Harry Atwater 1 2
2 , Aonex Technologies, Pasadena, California, United States, 1 Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California, United States, 3 , Emcore Photovoltaics, Albuquerque, New Mexico, United States

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Y2: Novel Materials and Processes
Session Chairs
Ken Durose
Hans-Werner Schock
Tuesday PM, April 10, 2007
Room 2024 (Moscone West)

2:30 PM - **Y2.1
Issues for Composition Control in the Deposition of CuInSe2-based Alloys.

William Shafarman 1 , Robert Birkmire 1 , Shiro Nishiwaki 1 , Greg Hanket 1
1 Institute of Energy Conversion, University of Delaware, Newark, Delaware, United States

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3:00 PM - Y2.2
Fabrication and Characterization of Cd1-xMgxTe Thin Films and Their Application in Solar Cells

Ramesh Dhere 1 , Kannan Ramanathan 2 , John Scharf 1 , Bobby To 1 , Anna Duda 1 , Helio Moutinho 1 , Rommel Noufi 1
1 , National Renewable Energy Lab, Golden, Colorado, United States, 2 , MiaSole, Santa Clara, California, United States

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3:15 PM - Y2.3
Nanostructured ZnS:In2S3 Buffer Layers. Can Voltage and Efficiency be Improved Through Interface Inhomogeneities on a Scale Below the Minority Carrier Diffusion Length?

Nicholas Allsop 1 , Andreas Haensel 1 , Christian Camus 1 , Sophie Gledhill 1 , Iver Lauermann 1 , Christian Fischer 1 , Martha Lux-Steiner 1
1 Solar Energy - Heterogeneous Material Systems, Hahn-Meitner-Institute, Berlin Germany

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3:30 PM - Y2.4
Experimental and Theoretical Study of Fluorine Doping to Tin Oxide.

Xiaonan Li 1 , Sally Asher 1 , Joel Pankow 1 , Lei Kerr 2 , Mailasu Bai 3 , Timothy Gessert 1
1 5200, National Renewable Energy Laboratory, Golden, Colorado, United States, 2 , Miami University of Ohio, Oxford, Ohio, United States, 3 , Colorado School of Mines, Golden, Colorado, United States

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3:45 PM - Y2.5
Development of a Wide Band Gap Cd1-xMgxTe Film for Applications in Tandem Devices.

Xavier Mathew 1 2 , Anthony Vasko 1 , Jennifer Drayton 1 , Alvin Compaan 1
1 Physics and Astronomy, Univ. of Toledo, Toledo, Ohio, United States, 2 CIE, UNAM, Temixco, Morelos, Mexico

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4:00 PM - *
Break

4:30 PM - **Y2.6
Zn-based Buffer Layer and High-quality CIGS Films Grown by a Novel Method.

Akira Yamada 1 , Fanying Meng 1 , Yoshiyuki Chiba 2 , Makoto Konagai 2
1 Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Tokyo Japan, 2 Department of Physical Electronics, Tokyo Institute of Technology, Tokyo Japan

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5:00 PM - Y2.7
Growth and Characterization of Chalcopyrite Nanocrystals: Beyond Conventional Thin Films.

David Fuertes Marron 1 , Sebastian Lehmann 1 , Sascha Sadewasser 1 , Martha Ch. Lux-Steiner 1
1 Department of Solar Energy, Hahn-Meitner Institut, Berlin Germany

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5:15 PM - Y2.8
Transparent Back Contacts in CdTe/CdS: Evaluation for Tandem Cells.

Viral Parikh 1 , Anthony Vasko 1 , Alvin Compaan 1
1 Physics and Astronomy, University of Toledo, Toledo, Ohio, United States

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5:30 PM - Y2.9
An Indium Free Transparent Conductive Oxide: doped TiO2.

M. van Hest 1 , M. Gillispie 2 , M. Dabney 1 , J. Perkins 1 , D. Ginley 1
1 , National Renewable Energy Laboratory, Golden, Colorado, United States, 2 , Iowa State University, Ames, Iowa, United States

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5:45 PM - Y2.10
Towards Lower Deposition Temperatures of Spray Deposited ZnO Films.

Sophie Gledhill 1 , Pablo Thier 1 , Nicholas Allsop 1 , Martha Lux-Steiner 1 , Christian Herbert Fischer 1
1 Solar Energy 2, Hahn-Meitner Institute, Berlin Germany

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Y3: Posters
Session Chairs
Tim Gessert
Tuesday PM, April 10, 2007
Salon Level (Marriott)

9:00 PM - Y3.1
In-situ Characterization of As-grown Surface of CIGS Films.

Hirotake Kashiwabara 1 , Shimpei Teshima 1 , Kazuya Kikunaga 1 , Kazunori Takeshita 1 , Tetsuji Okuda 1 , Kozo Obara 1 , Keiichiro Sakurai 2 , Shogo Ishizuka 2 , Akimasa Yamada 2 , Koji Matsubara 2 , Shigeru Niki 2 , Norio Terada 1 2
1 Nano-Structure and Advanced Materials, Kaghosima University, Kagoshima Japan, 2 Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, Tsukuba Japan

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9:00 PM - Y3.10
Compositional Variance of Conductivity in Sputter-Deposited Amorphous Indium Zinc Oxide Transparent Films

Andrew Leenheer 1 2 , John Perkins 2 , Andrew Cavendor 1 2 , Matthew Taylor 2 , Maikel van Hest 2 , Ryan O'Hayre 1 , David Ginley 2
1 Materials Science, Colorado School of Mines, Golden, Colorado, United States, 2 National Center for Photovoltaics, National Renewable Energy Lab, Golden, Colorado, United States

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9:00 PM - Y3.11
Device Behavior of Cu(InGa)(SeS)2 Solar Cells with >1.5 eV Bandgap.

Shiro Nishiwaki 1 , William Shafarman 1
1 , Institute of Energy Conversion, Newark, Delaware, United States

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9:00 PM - Y3.12
Characterization of ZnO Thin Film Prepared by Solid Source Chemical Vapor Deposition.

Hau-Ting Hu 1 , Yang-Chun Fang 1 , Shih-Hsuan Yang 1 , Liang Chao 1
1 Electronic Engineering, National Taiwan University of Science and Technology, Taipei Taiwan

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9:00 PM - Y3.13
In situ Investigation of Reaction Pathways of Cu-Se, In-Se and Ga-Se Mixed and Bilayer Precursors.

Woo Kyoung Kim 1 , E. Andrew Payzant 2 , Tim Anderson 1
1 Chemical Engineering, University of Florida, Gainesville, Florida, United States, 2 Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States

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9:00 PM - Y3.14
First-principles Calculations on Zn1-xMgxO Window Layer for CIS Thin Film Solar Cells.

Tsuyoshi Maeda 1 , Akio Shigemi 1 , Takahiro Wada 1
1 Materials Chemistry, Ryukoku University, Otsu, Shiga, Japan

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9:00 PM - Y3.15
Fabrication of (Cu,Ag)InSe2 Thin films by a Combination of Mechanochemical and Screen Printing/Sintering Processes

Syuusuke Nomura 1 , Yoshihiro Matsuo 1 , Takahiro Wada 1
1 Materials Chemistry, Ryukoku University, Otsu, Shiga, Japan

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9:00 PM - Y3.16
Validation of the p-type Behavior of an Ag-doped ZnSe Film Grown Heteroepitaxially on GaAs(100) Substrate.

Takashi Narushima 1 , Hiroaki Yanagita 1 , Masahiro Orita 1
1 R&D Center, HOYA Corporation, Tokyo Japan

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9:00 PM - Y3.17
ZnO Thin Films Prepared by Thermal Oxidation of Metallic Zinc Films.

Chon-Chi Liau 1 , Liang Chao 1
1 Electronic Engineering, National Taiwan University of Science and Technology, Taipei Taiwan

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9:00 PM - Y3.18
Synthesis of Size-controlled ZnO Seed for Nanorod Growth and its Application to Solar Cell.

Ki Seok Kim 1 , Gun-Young Jung 1
1 Material Science & Engineering, Gwnagju Institute of Science & Engineering, Gwangju Korea (the Republic of)

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9:00 PM - Y3.19
Study of Band Alignment at CBD-CdS/Cu(In1-xGax)Se2 (x = 0.2 ~ 1.0) Interfaces by Photoemission and Inverse Photoemission Spectroscopy.

Shimpei Teshima 1 , Hirotake Kashiwabara 1 , Keimei Masamoto 1 , Kazuya Kikunaga 1 , Kazunori Takeshita 1 , Tetsuji Okuda 1 , Keiichiro Sakurai 2 , Shogo Ishizuka 2 , Akimasa Yamada 2 , Koji Matsubara 2 , Shigeru Niki 2 , Norio Terada 1 2
1 Nano-Structure and Advanced Materials, Kagoshima University, Kagoshima Japan, 2 Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, Tsukuba Japan

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9:00 PM - Y3.2
Room Temperature Growth of Indium Oxide Films by Reactive Ion Beam Assisted Deposition.

Kai Wang 1 , Yuriy Vygranenko 1 , Arokia Nathan 2
1 Electrical & computer engineering, University of Waterloo, Waterloo, Ontario, Canada, 2 London Center for Nanotechnology, University College London, London United Kingdom

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9:00 PM - Y3.20
Characteristics of ZnO thin film Deposited by Atomic Layer Deposition Method.

Jae Sung Hur 1 , Chang-Sik Son 2 , Dong-Gun Lee 1 , Samseok Jang 1 , Jung-Bin Song 1 , In-Hoon Choi 1 , Dongjin Byun 1 , Byoung-Hoon Lee 1
1 Material science and engineering, Korea Univ., Seoul Korea (the Republic of), 2 Photonics, Silla Univ., Pusan Korea (the Republic of)

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9:00 PM - Y3.21
Copper-Indium-Boron-Diselenide Absorber Materials.

Ned Ianno 1 , Tobin Santero 1 , Rodney Soukup 1 , Chrisropher Exstrom 2 , Scott Darveau 2 , Jiri Olejnicek 2
1 Electrical Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, United States, 2 Chemistry, University of Nebraska at Kearney, Kearney, Nebraska, United States

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9:00 PM - Y3.22
Effect of Bias Light on Photovoltage Decay in CdTe/CdS Solar Cells.

Kent Price 1
1 , Morehead State University, Morehead, Kentucky, United States

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9:00 PM - Y3.23
All-CSS CdTe Solar-Cell Fabrication Process with Thinner CdS Layers.

Alan Davies 1 , J. Sites 1 , R. Enzenroth 1
1 , Colorado State University, Fort Collins, Colorado, United States

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9:00 PM - Y3.24
Optimization Of Electro Deposited In2S3 Buffer Layers In CuInS2 Cells.

Teodor Todorov 1 , Juan Carda 1 , Eloisa Cordoncillo 1 , Purificacion Escribano 1 , Joachim Klaer 2 , Reiner Klenk 2
1 Inorganic and Organic Chemistry, Universidad Jaume I, Castellón de la Plana, Castellón, Spain, 2 , Hahn-Meitner-Institut , Berlin Germany

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9:00 PM - Y3.25
Surface Morphologies and Optical Properties of Homoepitaxial ZnO by Close-Spaced Chemical Vapor Transport.

Koji Abe 1 , Tetsuya Tokuda 1 , Yuta Banno 1 , Osamu Eryu 1
1 Electrical and Electronic Engineering, Nagoya Institute of Technology, Nagoya Japan

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9:00 PM - Y3.26
Effect of Stress Field on Component Diffusion in Multilayer Thin Films.

Phaniraj Madakashira 1 , Vikash Sinha 1 , Om Prakash 1
1 , GE India Technology Center, Bangalore India

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9:00 PM - Y3.27
Solvothermal Synthesis of Copper Indium Diselenides using Alkyamines as Additives

Juyeon Chang 1 , Hye Jin Nam 1 , Geun-Tae Cho 1 , Duk-Young Jung 1
1 Chemistry, SungKyunKwan Univ., Suwon, Gyeonggi-do, Korea (the Republic of)

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9:00 PM - Y3.28
Cu-doped ZnSe Film with Stoichiometric Composition Deposited at Room Temperature using Compound Sources.

Masahiro Orita 1 , Takashi Narushima 1 , Hiroaki Yanagita 1
1 R&D Center, HOYA Corporation, Akishima-shi, Tokyo, Japan

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9:00 PM - Y3.29
The Formation of CuInSe2 Thin Film Solar Cell Absorbers from Electroplated Precursors.

Stefan Jost 1 , Frank Hergert 1 , Rainer Hock 1 , Torsten Voss 2 , Joerg Schulze 2 , Andreas Kirbs 2 , Michael Purwins 3 , Markus Schmid 3
1 Chair for Crystallography and Structural Physics, University of Erlangen-Nürnberg, Erlangen Germany, 2 , Atotech Deutschland GmbH, Berlin Germany, 3 Crystal Growth Laboratory, Department of Materials Science VI, University of Erlangen-Nürnberg, Erlangen Germany

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9:00 PM - Y3.3
Study of CIGS Solar Cells Back Contact.

Sylvain Marsillac 1
1 Physics and Astronomy, University of Toledo, Toledo, Ohio, United States

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9:00 PM - Y3.30
Characterization of CdS/CdTe Solar Cells Fabricated By Different Processes.

Tamara Potlog 1 , Khrypunov Gennadiy 2 , Kaelin Marc 3 , Zogg Hans 3 , Tiwari Ayodhya N. 2
1 Physics, Moldova State University, Chisinau Moldova (the Republic of), 2 Materials for Electronic and Solar Cells, National Technical University “Kharkov Polytechnic Institute”, Kharkov Ukraine, 3 Thin Film Physics Group, Laboratory for Solid State Physics, ETH Zurich ETH Building-Technopark, Technoparkstr.1 , CH-8005 Zurich Switzerland

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9:00 PM - Y3.31
Photocurrent Spectral Distribution and Relaxation in CdS/CdTe Heterojunctions

Sergiu Vatavu 1 , Iuliana Caraman 2 , Petru Gasin 1
1 Physics, Moldova State University, Chisinau Moldova (the Republic of), 2 Engineering, University of Bacau, Bacau Romania

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9:00 PM - Y3.32
Alternative Route To Obtain Photovoltaic Thin Film Of CdTe.

Claudio Carvalho 1 , Rodolfo Fernandes 1 , Victor Reynoso 1
1 Physics and Chemistry, Universidade Estadual Paulista - UNESP, Ilha Solteira, SP, Brazil

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9:00 PM - Y3.33
Formation of Zn-In-Se Compounds on CIGS Film by the Thermal Annealing in Dimethylzinc Stream.

Mutsumi Sugiyama 1 , Atsushi Miyama 1 , Akihisa Umezawa 1 , Toshihiro Yasuniwa 1 , Atsuki Kinoshita 1 , Hisayuki Nakanishi 1 , Shigefusa Chichibu 2
1 Dept. of Electrical Engineering, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba Japan, 2 Inst. of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba Japan

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9:00 PM - Y3.34
On the Origins of Impurities in CdTe-based Thin Film Solar Cells.

Mahieddine Emziane 1 , Douglas Halliday 1 , Ken Durose 1
1 Department of Physics, Durham University, Durham United Kingdom

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9:00 PM - Y3.35
Formation of Cu2ZnSnS4 and Cu2ZnSnS4-CuInS2 Thin Films Investigated by In-situ Energy Dispersive X-ray Diffraction.

Alfons Weber 1 , Immo Koetschau 1 , Susan Schorr 1 , Hans-Werner Schock 1
1 Solar Energy Division, Hahn-Meitner-Institut, Berlin Germany

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9:00 PM - Y3.37
Electronic Structure of CuInSe2 Thin Films.

Christian Pettenkofer 1 , Carsten Lehmann 1 , Volker Eyert 2
1 SE6, HMI, Berlin Germany, 2 , Universität Augsburg, Augsburg Germany

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9:00 PM - Y3.4
Photosensitivity of Thin Variable-gap p-n Structures with a Triangular Profile of Energy Band Diagram.

Bogdan Sokolovskii 1
1 Department of Electronics, Ivan Franko University of Lviv, Lviv Ukraine

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9:00 PM - Y3.5
Structure and Microstructure of Zn2x(CuBIII)1-xX2 Semiconductors (BIII=Ga,In;X=S,Se,Te)

Susan Schorr 1 , Gerald Wagner 2 , Michael Tovar 3 , Denis Sheptyakov 4
1 Solar Energy Research (SE3), Hahn-Meitner-Institute Berlin, Berlin Germany, 2 Institute of Mineralogy, Crystallography and Materials Science, University Leipzig, Leipzig Germany, 3 Structural Research (SF1), Hahn-Meitner-Institute Berlin, Berlin Germany, 4 Laboratory for neutron Scattering, ETH Zuerich&PSI Villigen, Villigen Switzerland

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9:00 PM - Y3.6
Growth and Characterization of Erbium Doped ZnO Prepared by Vapor Phase Transport Process.

Shih-Hsuan Yang 1 , Liang Chao 1
1 Electronic Engineering, National Taiwan University of Science and Technology, Taipei Taiwan

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9:00 PM - Y3.7
Electronic Transport in CuIn(S,Se)2 Electrodeposited Based Solar cells, Limiting Causes for 10% Efficiencies.

Arouna Darga 1 , Veronica Bermudez 2 , Denis Mencaraglia 1 , Olivier Kerrec 2
1 , LGEP- CNRS, Gif Sur Yvette France, 2 , IRDEP (CNRS-EDF), Chatou France

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9:00 PM - Y3.8
Electroluminescence from Cu(In,Ga)Se2 Thin-film Solar Cells.

Thomas Kirchartz 1 , Uwe Rau 1 , Julian Mattheis 1
1 Institute of Physical Electronics, University of Stuttgart, Stuttgart Germany

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9:00 PM - Y3.9
Growth and Characterization of Electrodeposited CIS Absorbers.

Shalini Menezes 1 , Yan Li 1 , Subba Kodigala 1 , Sharmila Menezes 1 , Joe Rose 1 , Anura Samantilleke 2
1 , InterPhases Research, Westlake Village, California, United States, 2 Department of Chemistry, University of Bath, BATH BA2 7AY United Kingdom

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9:00 PM -
Y3.38 TRANSFERRED TO Y1.4

2007-04-11   Show All Abstracts

Symposium Organizers

Timothy Gessert National Renewable Energy Laboratory
Sylvain Marsillac University of Toledo
Takahiro Wada Ryukoku University
Ken Durose Durham University
Clemens Heske University of Nevada-Las Vegas
Y6: Discussion Session I: What Else is Needed for a Healthy Thin-film PV Industry?
Session Chairs
Dieter Bonnet
Shigeru Niki
Bolko v. Roedern
Wednesday PM, April 11, 2007
Room 2024 (Moscone West)

9:00 AM - **L7.1
Local Electrostatic Modulation of Superconductivity in Nb-doped SrTiO3 Films.

Kei Takahashi 1 , Nicolas Reyren 1 , Andrea Caviglia 1 , Marc Gabay 2 , Keisuke Shibuya 3 , Tsuyoshi Ohnishi 3 , Mikk Lippmaa 3 , Didier Jaccard 1 , Jean-Marc Triscone 1
1 Département de Physique de la Matière Condensée, University of Geneva, Genève Switzerland, 2 Laboratoire de Physique des Solides, Université de Paris-Sud, Orsay France, 3 Institute for solid state physics, University of Tokyo, Chiba Japan

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Y4: Defects and Impurities
Session Chairs
Sally Asher
Ayodhya Nath Tiwari
Wednesday AM, April 11, 2007
Room 2024 (Moscone West)

9:30 AM - **Y4.1
Metastable Defect Distributions in CIGS Solar Cells and Their Impact on Device Efficiency.

Malgorzata Igalson 1
1 Faculty of Physics, Warsaw University of Technology, Warszawa Poland

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Y6: Discussion Session I: What Else is Needed for a Healthy Thin-film PV Industry?
Session Chairs
Dieter Bonnet
Shigeru Niki
Bolko v. Roedern
Wednesday PM, April 11, 2007
Room 2024 (Moscone West)

9:30 AM - L7.2
Dynamic Studies of Ferroelectric Domain Switching for Thin Films with Interfaces of Varying Orientation using High Speed Piezo Force Microscopy.

Ramesh Nath 1 , Ying-Hao Chu 2 , Ramamoorthy Ramesh 2 , Bryan Huey 1
1 Chemical, Materials and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut, United States, 2 Materials Science and Engineering, University of California, Berkeley, Berkeley, California, United States

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9:45 AM - L7.3
Internal Structure of Ferroelectric BaTiO3/ SrTiO3 Superlattices.

Dillon Fong 1 , A. Soukiassian 2 , S. Nakhmanson 1 , J. Eastman 1 , P. Fuoss 1 , S. Streiffer 3 , Y. Li 2 4 , L. Chen 2 , K. Rabe 5 , D. Schlom 2 , X. Xi 6
1 Materials Science Division, Argonne National Laboratory, Argonne, Illinois, United States, 2 Department of Materials Science & Engineering, Pennsylvania State University, University Park, Pennsylvania, United States, 3 Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois, United States, 4 Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States, 5 Department of Physics & Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, United States, 6 Department of Physics, Pennsylvania State University, University Park, Pennsylvania, United States

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Y4: Defects and Impurities
Session Chairs
Sally Asher
Ayodhya Nath Tiwari
Wednesday AM, April 11, 2007
Room 2024 (Moscone West)

10:00 AM - Y4.2
Understanding Metastable Defect Creation in CIGS by Detailed Device Modeling and Measurements on Bifacial Solar Cells.

JinWoo Lee 1 , David Berney Needleman 1 , William Shafarman 2 , J. David Cohen 1
1 Physics, Univ. of Oregon, Eugene, Oregon, United States, 2 Institute of Energy Conversion, University of Delaware, Newark, Delaware, United States

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