High‐Performance Organic Bulk‐Heterojunction Solar Cells Based on Multiple‐Donor or Multiple‐Acceptor Components
Abstract
Organic solar cells (OSCs) based on bulk heterojunction structures are promising candidates for next‐generation solar cells. However, the narrow absorption bandwidth of organic semiconductors is a critical issue resulting in insufficient usage of the energy from the solar spectrum, and as a result, it hinders performance. Devices based on multiple‐donor or multiple‐acceptor components with complementary absorption spectra provide a solution to address this issue. OSCs based on multiple‐donor or multiple‐acceptor systems have achieved power conversion efficiencies over 12%. Moreover, the introduction of an additional component can further facilitate charge transfer and reduce charge recombination through cascade energy structure and optimized morphology. This progress report provides an overview of the recent progress in OSCs based on multiple‐donor (polymer/polymer, polymer/dye, and polymer/small molecule) or multiple‐acceptor (fullerene/fullerene, fullerene/nonfullerene, and nonfullerene/nonfullerene) components.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 15, 2018
- Source ID
- 10.1002/adma.201705706
Entities
People
- Gang Li
- Pei Cheng
- Wenchao Huang
- Yang (michael) Yang
- Yang Yang
Organizations
- Air Force Office of Scientific Research
- Hong Kong Polytechnic University
- National Science Foundation
- Office of Naval Research
- Research Grants Council, University Grants Committee
- University of California
- University of California, Los Angeles
- Zhejiang University