Electronic-ionic coupling in perovskite based solar cells: Implications for device stability

2020 ◽  
Vol 117 (13) ◽  
pp. 133904
Author(s):  
Sapir Bitton ◽  
Nir Tessler
Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 720 ◽  
Author(s):  
Hang Dong ◽  
Shangzheng Pang ◽  
Yi Zhang ◽  
Dazheng Chen ◽  
Weidong Zhu ◽  
...  

Due to the low temperature fabrication process and reduced hysteresis effect, inverted p-i-n structured perovskite solar cells (PSCs) with the PEDOT:PSS as the hole transporting layer and PCBM as the electron transporting layer have attracted considerable attention. However, the energy barrier at the interface between the PCBM layer and the metal electrode, which is due to an energy level mismatch, limits the electron extraction ability. In this work, an inorganic aluminum-doped zinc oxide (AZO) interlayer is inserted between the PCBM layer and the metal electrode so that electrons can be collected efficiently by the electrode. It is shown that with the help of the PCBM/AZO bilayer, the power conversion efficiency of PSCs is significantly improved, with negligible hysteresis and improved device stability. The UPS measurement shows that the AZO interlayer can effectively decrease the energy offset between PCBM and the metal electrode. The steady state photoluminescence, time-resolved photoluminescence, transient photocurrent, and transient photovoltage measurements show that the PSCs with the AZO interlayer have a longer radiative carrier recombination lifetime and more efficient charge extraction efficiency. Moreover, the introduction of the AZO interlayer could protect the underlying perovskite, and thus, greatly improve device stability.


Author(s):  
Sai Ma ◽  
Gui-Zhou Yuan ◽  
Ying Zhang ◽  
Ning Yang ◽  
Yujing Li ◽  
...  

After a decade of research and development on the perovskite solar cells (PSCs), the achievements targeting the device stability have fallen far behind the progress made in the photoelectric conversion...


2019 ◽  
Vol 7 (33) ◽  
pp. 10338-10351 ◽  
Author(s):  
Xuyu Gao ◽  
Jiaxin Gao ◽  
Zhongyuan Xue ◽  
Huabin Wang ◽  
Jingyu Wang ◽  
...  

Fine-tuned crystallinity and optimized morphology were achieved by incorporating 2-dimensional monomer into N2200 resulting in enhanced PCE in various donors-based OSCs and improved device stability.


2011 ◽  
Vol 23 (17) ◽  
pp. 3915-3920 ◽  
Author(s):  
Paul R. Elowe ◽  
Matthew A. Stempki ◽  
Steve J. Rozeveld ◽  
Marty W. DeGroot

2019 ◽  
Vol 7 (27) ◽  
pp. 8344-8349 ◽  
Author(s):  
Xianglan Tang ◽  
Shuqin Xiao ◽  
Qingxia Fu ◽  
Yiwang Chen ◽  
Ting Hu

A PCBM:ITIC mixture interlayer was formed on perovskite to improve charge mobility and device stability.


2017 ◽  
Vol 5 (23) ◽  
pp. 11462-11482 ◽  
Author(s):  
Shida Yang ◽  
Weifei Fu ◽  
Zhongqiang Zhang ◽  
Hongzheng Chen ◽  
Chang-Zhi Li

In this review, we first highlighted recent progress in high-performance perovskite solar cells (PVSCs) with a discussion of the fabrication methods and PVSCs-based tandem solar cells. Furthermore, the stability issue of PVSCs and strategies to improve material and device stability have been discussed, and finally, a summary of the recent progress in lead-free perovskites has been presented.


2019 ◽  
Vol 6 (1) ◽  
pp. 1970004
Author(s):  
Chuanjiang Qin ◽  
Toshinori Matsushima ◽  
Dino Klotz ◽  
Takashi Fujihara ◽  
Chihaya Adachi

2017 ◽  
Vol 26 (1) ◽  
pp. 018401 ◽  
Author(s):  
Chao Xia ◽  
Wei-Dong Song ◽  
Chong-Zhen Zhang ◽  
Song-Yang Yuan ◽  
Wen-Xiao Hu ◽  
...  

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