Comment on “Tremendously enhanced photocurrent enabled by triplet–triplet annihilation up-conversion for high-performance perovskite solar cells” by W. Sheng, J. Yang, X. Li, G. Liu, Z. Lin, J. Long, S. Xiao, L. Tan and Y. Chen, Energy Environ. Sci., 2021, 14, 3532

Author(s):  
Lea Nienhaus ◽  
Timothy W. Schmidt

We discuss why in the device structure presented Sheng et al. upconversion inherently cannot be the underlying cause of the observed effects.

Author(s):  
Wangping Sheng ◽  
Jia Yang ◽  
Xiang Li ◽  
Shuqin Xiao ◽  
Licheng Tan ◽  
...  

The photocurrent improvement of perovskite solar cells is mainly attributed to the synergistic effects including triplet–triplet annihilation up-conversion and rubrene-assisted defect passivation.


2017 ◽  
Vol 10 (11) ◽  
pp. 2480-2480
Author(s):  
Zhengyang Bin ◽  
Jiangwei Li ◽  
Liduo Wang ◽  
Lian Duan

Correction for ‘Efficient n-type dopants with extremely low doping ratios for high performance inverted perovskite solar cells’ by Zhengyang Bin et al., Energy Environ. Sci., 2016, 9, 3424–3428.


Author(s):  
Wangping Sheng ◽  
Jia Yang ◽  
Xiang Li ◽  
Gengling Liu ◽  
Zhuojia Lin ◽  
...  

The limited solar spectra utilization hinders the further amelioration of perovskite solar cells (PVSCs) performance. Up-conversion (UC) process extends the spectral absorption of PVSCs from visible to near-infrared (NIR) range...


2020 ◽  
Vol 30 (28) ◽  
pp. 2000863 ◽  
Author(s):  
Yulan Huang ◽  
Tanghao Liu ◽  
Chao Liang ◽  
Junmin Xia ◽  
Dongyang Li ◽  
...  

2020 ◽  
Author(s):  
Luyao Zheng ◽  
Kai Wang ◽  
Tao Zhu ◽  
Yongrui Yang ◽  
Kai Gu ◽  
...  

Solar Energy ◽  
2019 ◽  
Vol 182 ◽  
pp. 237-244 ◽  
Author(s):  
Ahmed-Ali Kanoun ◽  
Mohammed Benali Kanoun ◽  
Abdelkrim E. Merad ◽  
Souraya Goumri-Said

MRS Bulletin ◽  
2020 ◽  
Vol 45 (6) ◽  
pp. 431-438 ◽  
Author(s):  
Shuang Xiao ◽  
Yu Li ◽  
Shizhao Zheng ◽  
Shihe Yang

Abstract


2021 ◽  
pp. 2008405
Author(s):  
Zhihao Zhang ◽  
Yifeng Gao ◽  
Zicheng Li ◽  
Lu Qiao ◽  
Qiu Xiong ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.


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