Carrier generation engineering toward 18% efficiency organic solar cells by controlling film microstructure

Y Su, L Zhang, Z Ding, Y Zhang, Y Wu… - Advanced Energy …, 2022 - Wiley Online Library
The single bulk‐heterojunction active layer based on non‐fullerene acceptors (NFAs) has
dominated the power conversional efficiencies above 18% in state‐of‐the‐art organic solar …

N-doping of nonfullerene bulk-heterojunction organic solar cells strengthens photogeneration and exciton dissociation

J Xie, W Lin, GC Bazan, T Pullerits, K Zheng… - Journal of Materials …, 2022 - pubs.rsc.org
N-type doping of the bulk-heterojunction layer in nonfullerene organic solar cells allows to
effectively ameliorate inferior electron transportation by filling traps and optimizing electron …

Enhancing open-circuit voltage of high-efficiency nonfullerene ternary solar cells with a star-shaped acceptor

G Cai, Y Li, J Zhou, P Xue, K Liu, J Wang… - … Applied Materials & …, 2020 - ACS Publications
The ternary strategy has been widely used in high-efficiency organic solar cells (OSCs).
Herein, we successfully incorporated a mid-band-gap star-shaped acceptor, FBTIC, as the …

Efficient organic solar cell with 16.88% efficiency enabled by refined acceptor crystallization and morphology with improved charge transfer and transport properties

L Zhu, M Zhang, G Zhou, T Hao, J Xu… - Advanced Energy …, 2020 - Wiley Online Library
Single‐layered organic solar cells (OSCs) using nonfullerene acceptors have reached 16%
efficiency. Such a breakthrough has inspired new sparks for the development of the next …

Adding a third component with reduced miscibility and higher LUMO level enables efficient ternary organic solar cells

R Ma, T Liu, Z Luo, K Gao, K Chen, G Zhang… - ACS Energy …, 2020 - ACS Publications
It is widely known that the miscibility between donor and acceptor is a crucial factor that
affects the morphology and thus device performance of nonfullerene organic solar cells …

Achieving organic solar cells with an efficiency of 18.80% by reducing nonradiative energy loss and tuning active layer morphology

X Si, Y Huang, W Shi, R Wang, K Ma… - Advanced Functional …, 2023 - Wiley Online Library
The efficiency of organic solar cells (OSCs) is primarily limited by their significant
nonradiative energy loss and unfavorable active layer morphology. Achieving high …

Optimal bulk morphology via side-chain engineering on non-fullerene acceptor for efficient organic solar cells

H Qin, S Xia, D Sun, Z Wu, Y Wang, Y Ran… - Journal of Materials …, 2022 - pubs.rsc.org
Molecular self-assembly is a key factor that significantly influences the bulk film morphology
to achieve the desired optoelectronic properties in organic photovoltaic devices. However …

Improving molecular planarity by changing alky chain position enables 12.3% efficiency all‐small‐molecule organic solar cells with enhanced carrier lifetime and …

X Dong, K Yang, H Tang, D Hu, S Chen, J Zhang… - Solar Rrl, 2020 - Wiley Online Library
Molecular stacking plays an important role in defining the active layer morphology in all‐
small‐molecule organic solar cells (ASM OSCs). However, the precise control of …

Suppressing bimolecular charge recombination and energetic disorder with planar heterojunction active layer enables 18.1% efficiency binary organic solar cells

Z Zhao, J Zhao, S Chung, K Cho, W Xu… - ACS Materials …, 2023 - ACS Publications
The performance of organic solar cells has been dramatically enhanced due to the use of
bulk heterojunction active layer structure. However, blending donor and acceptor in the bulk …

Achieving 18.14% efficiency of ternary organic solar cells with alloyed nonfullerene acceptor

K Yu, W Song, Y Li, Z Chen, J Ge, D Yang… - Small …, 2021 - Wiley Online Library
The ternary strategy is an effective method to improve the efficiency of organic solar cells
(OSCs). Herein, high‐performance OSCs with over 18% efficiency using PM6 as donor and …