Cost-Effective High-Performance Charge-Carrier-Transport-Layer-Free Perovskite Solar Cells Achieved by Suppressing Ion Migration

2021 ◽  
pp. 3044-3052
Author(s):  
Tao Ye ◽  
Yuchen Hou ◽  
Amin Nozariasbmarz ◽  
Dong Yang ◽  
Jungjin Yoon ◽  
...  
2015 ◽  
Vol 17 (15) ◽  
pp. 9835-9840 ◽  
Author(s):  
Jian Wang ◽  
Fujun Zhang ◽  
Miao Zhang ◽  
Wenbin Wang ◽  
Qiaoshi An ◽  
...  

Using a hot solution may prove to be an effective method to improve the charge carrier transport for high performance PSCs.


2020 ◽  
Vol 49 (2) ◽  
pp. 354-381 ◽  
Author(s):  
Jin-Feng Liao ◽  
Wu-Qiang Wu ◽  
Yong Jiang ◽  
Jun-Xing Zhong ◽  
Lianzhou Wang ◽  
...  

This review summarizes recent advances in the carrier transport layer-free perovskite solar cells and elucidates the fundamental carrier dynamics, heterojunction merits and device physics towards mysterious high performance.


2018 ◽  
Vol 3 (4) ◽  
pp. 1036-1043 ◽  
Author(s):  
Yuljae Cho ◽  
Bo Hou ◽  
Jongchul Lim ◽  
Sanghyo Lee ◽  
Sangyeon Pak ◽  
...  

2016 ◽  
Vol 4 (44) ◽  
pp. 17464-17472 ◽  
Author(s):  
Jingjing Chang ◽  
Juanxiu Xiao ◽  
Zhenhua Lin ◽  
Hai Zhu ◽  
Qing-Hua Xu ◽  
...  

KPFM study of various structures with a perovskite layer indicates unbalanced charge-carrier transport and extraction.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Md. Shahiduzzaman ◽  
Mohammad Ismail Hossain ◽  
Sem Visal ◽  
Tetsuya Kaneko ◽  
Wayesh Qarony ◽  
...  

AbstractThe photovoltaic performance of perovskite solar cells (PSCs) can be improved by utilizing efficient front contact. However, it has always been a significant challenge for fabricating high-quality, scalable, controllable, and cost-effective front contact. This study proposes a realistic multi-layer front contact design to realize efficient single-junction PSCs and perovskite/perovskite tandem solar cells (TSCs). As a critical part of the front contact, we prepared a highly compact titanium oxide (TiO2) film by industrially viable Spray Pyrolysis Deposition (SPD), which acts as a potential electron transport layer (ETL) for the fabrication of PSCs. Optimization and reproducibility of the TiO2 ETL were discreetly investigated while fabricating a set of planar PSCs. As the front contact has a significant influence on the optoelectronic properties of PSCs, hence, we investigated the optics and electrical effects of PSCs by three-dimensional (3D) finite-difference time-domain (FDTD) and finite element method (FEM) rigorous simulations. The investigation allows us to compare experimental results with the outcome from simulations. Furthermore, an optimized single-junction PSC is designed to enhance the energy conversion efficiency (ECE) by > 30% compared to the planar reference PSC. Finally, the study has been progressed to the realization of all-perovskite TSC that can reach the ECE, exceeding 30%. Detailed guidance for the completion of high-performance PSCs is provided.


Coatings ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 127 ◽  
Author(s):  
Xuhui Wang ◽  
Gang Lu ◽  
Min Zhang ◽  
Yali Gao ◽  
Yanbo Liu ◽  
...  

Perovskite solar cell efficiency is not only related with material properties, but also affected by the interface engineering that used in perovskite solar cells. The perovskite film/electrode interface properties play important roles in charge carrier extraction, transport, and recombination. To achieve better interface contact for the device operation, proper interlayers or surface treatment should be applied. In this study, we applied a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) interlayer with a solvent/solution washing treatment as the hole transport layer. It showed that by the solvent/solution treatment, the PEDOT:PSS film conductivity was significantly enhanced, and hence, the charge carrier transfer efficiency was efficiently improved, and the device short-circuit current density was enlarged. Finally, the device efficiency significantly increased from 14.8% to 16.2%.


2017 ◽  
Vol 5 (36) ◽  
pp. 9376-9382 ◽  
Author(s):  
Xuning Zhang ◽  
Shiqing Bi ◽  
Jiyu Zhou ◽  
Shuai You ◽  
Huiqiong Zhou ◽  
...  

Based on control of the perovskite film thickness, we investigate temperature-dependent charge carrier transport, recombination, traps, and solar cell behavior based on methylammonium lead triiodide films.


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