Efficient Fused‐Ring Extension of A–D–A‐Type Non‐Fullerene Acceptors by a Symmetric Replicating Core Unit Strategy

2020 ◽  
Vol 26 (54) ◽  
pp. 12411-12417
Author(s):  
Tian Xia ◽  
Chao Li ◽  
Hwa Sook Ryu ◽  
Jing Guo ◽  
Jie Min ◽  
...  
Keyword(s):  
RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5507-5515
Author(s):  
Liang Song ◽  
Feng-Qi Zhao ◽  
Si-Yu Xu ◽  
Xue-Hai Ju

The bimolecular and fused ring compounds are found in the high-temperature pyrolysis of NONA using ReaxFF molecular dynamics simulations.


2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  

Aggregate ◽  
2021 ◽  
Author(s):  
Jiayu Wang ◽  
Runyu Zhu ◽  
Shijie Wang ◽  
Yawen Li ◽  
Boyu Jia ◽  
...  

Author(s):  
Chun-Ru Wang ◽  
Fuwen Zhao ◽  
Dan He ◽  
Jingming Xin ◽  
Huotian Zhang ◽  
...  

Two FREAs, IUIC-O and IUIC-T, based on an undecacyclic core were developed. IUIC-T having higher extinction coefficient, affords aligned energy levels with PBDB-T, finer nanoscale morphology and more orderly molecular...


ACS Omega ◽  
2021 ◽  
Author(s):  
David Arias-Olivares ◽  
Andrés Becerra-Buitrago ◽  
Luis Carlos García-Sánchez ◽  
Rafael Islas

2021 ◽  
pp. 2102189
Author(s):  
Jinlong Cai ◽  
Xue Zhang ◽  
Chuanhang Guo ◽  
Yuan Zhuang ◽  
Liang Wang ◽  
...  

2021 ◽  
Vol 27 (9) ◽  
Author(s):  
Yuhe Jiang ◽  
Yuqin Luo ◽  
Jia Liu ◽  
Lu Zhang ◽  
Jinting Wu ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Lijiao Ma ◽  
Shaoqing Zhang ◽  
Jincheng Zhu ◽  
Jingwen Wang ◽  
Junzhen Ren ◽  
...  

AbstractNon-fullerene acceptors (NFAs) based on non-fused conjugated structures have more potential to realize low-cost organic photovoltaic (OPV) cells. However, their power conversion efficiencies (PCEs) are much lower than those of the fused-ring NFAs. Herein, a new bithiophene-based non-fused core (TT-Pi) featuring good planarity as well as large steric hindrance was designed, based on which a completely non-fused NFA, A4T-16, was developed. The single-crystal result of A4T-16 reveals that a three-dimensional interpenetrating network can be formed due to the compact π–π stacking between the adjacent end-capping groups. A high PCE of 15.2% is achieved based on PBDB-TF:A4T-16, which is the highest value for the cells based on the non-fused NFAs. Notably, the device retains ~84% of its initial PCE after 1300 h under the simulated AM 1.5 G illumination (100 mW cm−2). Overall, this work provides insight into molecule design of the non-fused NFAs from the aspect of molecular geometry control.


Symmetry ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 702
Author(s):  
Aixian Zhang ◽  
Keqin Feng

Normal bases are widely used in applications of Galois fields and Galois rings in areas such as coding, encryption symmetric algorithms (block cipher), signal processing, and so on. In this paper, we study the normal bases for Galois ring extension R / Z p r , where R = GR ( p r , n ) . We present a criterion on the normal basis for R / Z p r and reduce this problem to one of finite field extension R ¯ / Z ¯ p r = F q / F p ( q = p n ) by Theorem 1. We determine all optimal normal bases for Galois ring extension.


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