April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)
Symposium Supporters
2024 MRS Spring Meeting & Exhibit
EN04.09.02

Multicomponent Blend Strategy for Enhanced Performance and Longevity in Organic Photovoltaics

When and Where

Apr 26, 2024
9:00am - 9:30am
Room 328, Level 3, Summit

Presenter(s)

Co-Author(s)

Tayebeh Ameri1,2

Kiel University1,University of Edinburgh2

Abstract

Tayebeh Ameri1,2

Kiel University1,University of Edinburgh2
Organic photovoltaics have made remarkable progress in recent years, achieving power conversion efficiencies of over 19% in laboratory-scale devices, marking a significant step towards their commercial viability. This advancement can be attributed to the integration of non-fullerene acceptor materials and the adoption of the multicomponent/ ternary blend approach within the organic photovoltaic technology.<br/>However, the organic photovoltaic community, focused on enhancing the power conversion efficiency, had previously overlooked the critical aspects of lifetime and stability issues for more than a decade. Recent efforts have focused on addressing these concerns, with numerous studies conducted to comprehend the degradation mechanisms and improve the overall longevity of organic photovoltaics.<br/>This presentation will delve into the development of the ternary blend approach, which has not only elevated the power conversion efficiency but also enhanced the open circuit voltage and fill factor. We will provide insights into the working principles and the underlying mechanisms governing the open circuit voltage in ternary systems, consisting of a polymer donor, a nonfullerene acceptor, and a fullerene acceptor. Furthermore, we will explore how this approach can effectively address stability issues linked to the commonly used zinc oxide electron transport layer, thereby significantly improving the photostability of organic photovoltaics.

Keywords

chemical composition

Symposium Organizers

Derya Baran, King Abdullah University of Science and Technology
Dieter Neher, University of Potsdam
Thuc-Quyen Nguyen, University of California, Santa Barbara
Oskar Sandberg, Åbo Akademi University

Symposium Support

Silver
Enli Technology Co., Ltd.

Bronze
1-Material, Inc.

Session Chairs

Xinhui Lu
Tao Wang

In this Session