TY - JOUR
T1 - Non-fullerene acceptors with thiazole π-bridge for organic solar cells
AU - Jia, Yixiao
AU - Jiang, Xin
AU - Wang, Kaifeng
AU - Chen, Xianneng
AU - Fang, Ruixiang
AU - Miao, Chunyang
AU - Tao, Youtian
AU - Zhang, Shiming
N1 - Publisher Copyright:
© 2023
PY - 2024/1/15
Y1 - 2024/1/15
N2 - Intramolecular noncovalent conformational locks (NoCLs) have been found to be effective in increasing the rigidity and planarity of the molecular backbone. This, in turn, leads to reduced recombination energy and improved intramolecular charge transport mobility, resulting in significant enhancements in the photovoltaic performance of organic solar cell (OSC) devices. To take advantage of this effect, we designed and synthesized two small molecule non-fullerene acceptors (NFAs) with A-π-D-π-A structures using thiazole (Tz): IDTz-IC4F and IDTz-IC4Cl. With the synergistic assistance of NoCLs and halogenated end groups, the NFAs IDTz-IC4F and IDTz-IC4Cl exhibited power conversion efficiencies (PCEs) of 6.20 % and 6.06 %, respectively. This study presents a strategy for enhancing the PCE of OSCs by incorporating cooperative NoCLs and halogen end groups, providing an exciting avenue for designing high-performance non-fullerene materials in the future.
AB - Intramolecular noncovalent conformational locks (NoCLs) have been found to be effective in increasing the rigidity and planarity of the molecular backbone. This, in turn, leads to reduced recombination energy and improved intramolecular charge transport mobility, resulting in significant enhancements in the photovoltaic performance of organic solar cell (OSC) devices. To take advantage of this effect, we designed and synthesized two small molecule non-fullerene acceptors (NFAs) with A-π-D-π-A structures using thiazole (Tz): IDTz-IC4F and IDTz-IC4Cl. With the synergistic assistance of NoCLs and halogenated end groups, the NFAs IDTz-IC4F and IDTz-IC4Cl exhibited power conversion efficiencies (PCEs) of 6.20 % and 6.06 %, respectively. This study presents a strategy for enhancing the PCE of OSCs by incorporating cooperative NoCLs and halogen end groups, providing an exciting avenue for designing high-performance non-fullerene materials in the future.
KW - Energy storage and conversion
KW - Non-fullerene small molecule acceptor
KW - Noncovalent conformation lock
KW - Organic solar cell materials
UR - http://www.scopus.com/inward/record.url?scp=85174688603&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2023.135420
DO - 10.1016/j.matlet.2023.135420
M3 - 文章
AN - SCOPUS:85174688603
SN - 0167-577X
VL - 355
JO - Materials Letters
JF - Materials Letters
M1 - 135420
ER -
