Subtle Molecular Tailoring Induces Significant Morphology Optimization Enabling over 16% Efficiency Organic Solar Cells with Efficient Charge Generation
Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +7 more institutions
Abstract
Manipulating charge generation in a broad spectral region has proved to be crucial for nonfullerene-electron-acceptor-based organic solar cells (OSCs). 16.64% high efficiency binary OSCs are achieved through the use of a novel electron acceptor AQx-2 with quinoxaline-containing fused core and PBDB-TF as donor. The significant increase in photovoltaic performance of AQx-2 based devices is obtained merely by a subtle tailoring in molecular structure of its analogue AQx-1. Combining the detailed morphology and transient absorption spectroscopy analyses, a good structure-morphology-property relationship is established. The stronger π-π interaction results in efficient electron hopping and balanced electron and…
Citation impact
- FWCI
- 31.36
- Percentile
- 100%
- References
- 44
Authors
13- ZZZichun Zhou
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- WLWenrui Liu
Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
- GZGuanqing Zhou
Shanghai Jiao Tong University
- MZMing Zhang
Shanghai Jiao Tong University
- DQDeping Qian
Linköping University
Topics & keywords
- Materials science
- Organic solar cell
- Morphology (biology)
- Nanotechnology
- Charge (physics)
- Energy conversion efficiency
- Chemical engineering
- Optoelectronics
- Affordable and clean energy