2018 MRS Spring Meeting

Call for Papers

Symposium EP02—Excitonic Materials—Physics, Characterization and Devices

Materials that host stable excitons at room temperature (i.e. exciton binding energy substantially greater than kT) offer unique opportunities for exploiting these particles. Their potential has been realized through the commercialization of displays based on organic light-emitting diodes (OLED) and quantum dots (QD). Beyond displays, excitonic materials also offer a host of opportunities in solid-state lighting, solar cells, lasers, and information processing.

There is an increasing need to understand the fundamental behavior of excitons in an effort to establish material design and device engineering strategies that can exploit their unique properties; including exciton-exciton and exciton-charge interactions, and long-range exciton transport. Such exciton engineering seeks to utilize phenomena that are present within the bulk of a material and at device-relevant interfaces. These phenomena have been shown to be controlled through changes to the bulk material (e.g. QD size or molecular structure), layer composition (e.g. host:guest or donor:acceptor systems), or through control of material morphology and processing (e.g. molecule orientation or crystallinity). The near infinite variability in material and interface selection and preparation has proven critical in the ability to control and better understand device function.

This symposium will cover all materials that exhibit excitonic behavior, including but not limited to conjugated molecules, quantum dots, and other quantum-confined, excitonic systems such as 2D semiconductors made from chalcogenides. This symposium intends to cover the latest insights on the fundamental characteristics of these materials, in particular related to their photonic and excitonic properties, as well as emerging device concepts and applications.

Topics will include:

  • Excitonic transport and quenching processes
  • Exciton phenomena such as singlet fission, triplet-triplet annihilation and upconversion, exciton-charge interactions, and thermally activated delayed fluorescence
  • Spectroscopic probes of exciton behavior
  • Layer formation and morphology
  • Device design and characterization (photovoltaics, LEDs, lasers)
  • Lifetime and stability considerations

Invited Speakers:

  • C. Adachi (Kyushu University, Japan)
  • A. Amassian (King Abdullah University of Science and Technology, Saudi Arabia)
  • A. Aspuru-Guzik (Harvard University, USA)
  • C. Brabec (FAU Erlangen, Germany)
  • M. Chabinyc (University of California, Santa Barbara, USA)
  • N. Giebink (Pennsylvania State University, USA)
  • N. Ginsburg (University of California, Berkeley, USA)
  • R. Janssen (TU Eindhoven, Netherlands)
  • C. Kagan (University of Pennsylvania, USA)
  • S. Kena-Cohen (Ecole Polytechnique Montreal, Canada)
  • J.-J. Kim (Seoul National University, Republic of Korea)
  • K. Leo (TU Dresden, Germany)
  • M.A. Loi (University Groningen, Netherlands)
  • I. McCulloch (Imperial College London, United Kingdom)
  • P. Mulvaney (University of Melbourne, Australia)
  • J. Nelson (Imperial College London, United Kingdom)
  • T.-Q. Nguyen (University of California, Santa Barbara, USA)
  • A. Rao (University of Cambridge, United Kingdom)
  • G. Rumbles (National Renewable Energy Laboratory, USA)
  • A. Salleo (Stanford University, USA)
  • I. Samuel (University of St. Andrews, United Kingdom)
  • T. Sargent (University of Toronto, Canada)
  • R. Schaller (Argonne National Laboratory, USA)
  • S. Sharifzadeh (Boston University, USA)
  • M. Thompson (University of Southern California, USA)
  • K.-T. Wong (National Taiwan University, Taiwan)
  • V. Wood (ETH Zurich, Switzerland)

Symposium Organizers

Barry Rand
Princeton University
Department of Electrical Engineering and Andlinger Center for Energy and the Environment
609-258-7692, brand@princeton.edu

Neil Greenham
University of Cambridge
Cavendish Laboratory
United Kingdom
44-1223-766301, ncg11@cam.ac.uk

Russell Holmes
University of Minnesota
Department of Chemical Engineering and Materials Science
612-624-9058, rholmes@umn.edu

Seunghyup Yoo
Korea Advanced Institute of Science and Technology
Department of Electrical Engineering
Republic of Korea
82-42-350-3483, syoo.ee@kaist.edu

Keywords for Abstract Submission

excitons, light emitting devices, organic semiconductors, solar cells