Theoretical design and characterization of pyridalthiadiazole-based chromophores with fast charge transfer at donor/acceptor interface toward small molecule organic photovoltaics

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29401-29411 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yu-Ai Duan ◽  
Yun Geng ◽  
Hong-Ze Gao ◽  
Yong-Qing Qiu ◽  
...  

The designed 2, 3, and 5 will be promising donor candidates for high-performance OPV device due to their fast intermolecular charge transfer and effective charge transport.

Author(s):  
Chunli Liu ◽  
Yang Bai ◽  
Ji Wang ◽  
Ziming Qiu ◽  
Huan Pang

Two-dimensional (2D) materials with structures having diverse features are promising for application in energy conversion and storage. A stronger layered orientation can guarantee fast charge transfer along the 2D planes...


CrystEngComm ◽  
2015 ◽  
Vol 17 (32) ◽  
pp. 6227-6235 ◽  
Author(s):  
Amparo Salmerón-Valverde ◽  
Sylvain Bernès

A series of solvated donor–acceptor organic complexes were shown to slowly release the lattice solvent while the degree of charge transfer decreases steadily. This behavior is not observed in the case of a hydrate.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.


2018 ◽  
Vol 20 (3) ◽  
pp. 1664-1672 ◽  
Author(s):  
Kuangshi Sun ◽  
Xiaoqin Tang ◽  
Yalin Ran ◽  
Rongxing He ◽  
Wei Shen ◽  
...  

π-Bridge modification could adjust the molecular energy levels and improve the optical, intramolecular charge transfer and charge transport properties.


2014 ◽  
Vol 2 (14) ◽  
pp. 4989-4998 ◽  
Author(s):  
Sachin B. Kulkarni ◽  
Umakant M. Patil ◽  
Iman Shackery ◽  
Ji Soo Sohn ◽  
Suchan Lee ◽  
...  

The distinctive architecture of the PANI/3D graphene electrode enhances its supercapacitive performance (1024 F g¬1), the lightweight and porous conducting foam provides “freeways” for fast charge transport.


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