Fabrication of benzothiadiazole–benzodithiophene-based random copolymers for efficient thick-film polymer solar cells via a solvent vapor annealing approach

2018 ◽  
Vol 6 (16) ◽  
pp. 4555-4564 ◽  
Author(s):  
Zhanfeng Li ◽  
Xiangkun Wang ◽  
Jingkun Ren ◽  
Guoyue Gan ◽  
Caijun Liu ◽  
...  

We constructed a series of D–A1–D–A2 random polymers with broad light absorption and high carrier mobility. A PCE of over 4.52% was observed at a BHJ thickness of 270 nm, and over 5.60% at thicknesses of 100–170 nm.

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1188
Author(s):  
Mingu Jang ◽  
Yang-Il Huh ◽  
Mincheol Chang

We systematically studied the influence of solvent vapor annealing on the molecular ordering, morphologies, and charge transport properties of poly(3-hexylthiophene) (P3HT) thin films embedded with preformed crystalline P3HT nanowires (NWs). Solvent vapor annealing (SVA) with chloroform (CF) was found to profoundly impact on the structural and morphological changes, and thus on the charge transport characteristics, of the P3HT-NW-embedded P3HT films. With increased annealing time, the density of crystalline P3HT NWs was increased within the resultant films, and also intra- and intermolecular interactions of the corresponding films were significantly improved. As a result, the P3HT-NW-embedded P3HT films annealed with CF vapor for 20 min resulted in a maximized charge carrier mobility of ~0.102 cm2 V−1 s−1, which is higher than that of pristine P3HT films by 4.4-fold (μ = ~0.023 cm2 V−1 s−1).


2013 ◽  
Vol 14 (7) ◽  
pp. 1874-1881 ◽  
Author(s):  
Hongying Lv ◽  
Xiaoli Zhao ◽  
Wentao Xu ◽  
Hui Li ◽  
Jiayue Chen ◽  
...  

2020 ◽  
Vol 8 (13) ◽  
pp. 4477-4485 ◽  
Author(s):  
Xuhua Xiao ◽  
Guoxing Pan ◽  
Tian Li ◽  
Songlin Su ◽  
Liangzheng Zhu ◽  
...  

Magnetically guided solvent vapor annealing enables highly aligned uniform films and excellent OFET performance of a DPP polymer.


2015 ◽  
Vol 3 (36) ◽  
pp. 18611-18621 ◽  
Author(s):  
Tenghooi Goh ◽  
Jing-Shun Huang ◽  
Benjamin Bartolome ◽  
Matthew Y. Sfeir ◽  
Michelle Vaisman ◽  
...  

We show that strategically adding additional light active components to form ternary solar cells can significantly improve polymer solar cells.


2020 ◽  
Vol 22 (48) ◽  
pp. 28414-28422
Author(s):  
Yunzhi Gao ◽  
Kai Wu ◽  
Wei Hu ◽  
Jinlong Yang

Tellurene, a two-dimensional (2D) semiconductor, meets the requirements for optoelectronic applications with desirable properties, such as a suitable band gap, high carrier mobility, strong visible light absorption and high air stability.


2021 ◽  
Author(s):  
Yifan Rao ◽  
Fusheng Zhang ◽  
Bao Zhu ◽  
Hui Li ◽  
Kai Zheng ◽  
...  

A type-II C2N/ZnSe heterostructure with strong light-absorption ability, high carrier mobility and low exciton binding energy, exhibits excellent photocatalytic water splitting performance


2019 ◽  
Vol 31 (12) ◽  
pp. 125301 ◽  
Author(s):  
Haijun Zhang ◽  
Xiutao Li ◽  
Xuefang Meng ◽  
Suting Zhou ◽  
Guang Yang ◽  
...  

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