scholarly journals Effects of Preheating Treatments on the Performance of Perovskite Solar Cells

2022 ◽  
Vol 2160 (1) ◽  
pp. 012036
Author(s):  
Haoyu Wang ◽  
Junjie Yang ◽  
Xiaodong Liu ◽  
Shuanghong Wu ◽  
Xiangru Wang

Abstract Perovskite solar cells (PSCs) have fascinated widespread focus for prominent perfomances recently. The processing parameters in spin-coating have great influence on the efficiency of PSCs. Herein, we have researched the influence of different preheating treatments on the perfomance of PSCs. The power conversion efficiency (PCE) has a significant enhancement to 15.89% through preheating the substrate together with precursor solution simultaneously. This work promotes the development of high performance PSCs and their industrialization.

2016 ◽  
Vol 4 (29) ◽  
pp. 11307-11316 ◽  
Author(s):  
Minwoo Park ◽  
Joon-Suh Park ◽  
Il Ki Han ◽  
Jin Young Oh

By incorporating long P3HT nanofibrils as a hole transporting layer, high-performance, air-stable and flexible perovskite solar cells with a large active area (1 cm2) have been realized with an excellent power conversion efficiency of 13.12%.


2016 ◽  
Vol 2 (1) ◽  
pp. e1501170 ◽  
Author(s):  
Dongqin Bi ◽  
Wolfgang Tress ◽  
M. Ibrahim Dar ◽  
Peng Gao ◽  
Jingshan Luo ◽  
...  

We report on a new metal halide perovskite photovoltaic cell that exhibits both very high solar-to-electric power-conversion efficiency and intense electroluminescence. We produce the perovskite films in a single step from a solution containing a mixture of FAI, PbI2, MABr, and PbBr2(where FA stands for formamidinium cations and MA stands for methylammonium cations). Using mesoporous TiO2and Spiro-OMeTAD as electron- and hole-specific contacts, respectively, we fabricate perovskite solar cells that achieve a maximum power-conversion efficiency of 20.8% for a PbI2/FAI molar ratio of 1.05 in the precursor solution. Rietveld analysis of x-ray diffraction data reveals that the excess PbI2content incorporated into such a film is about 3 weight percent. Time-resolved photoluminescence decay measurements show that the small excess of PbI2suppresses nonradiative charge carrier recombination. This in turn augments the external electroluminescence quantum efficiency to values of about 0.5%, a record for perovskite photovoltaics approaching that of the best silicon solar cells. Correspondingly, the open-circuit photovoltage reaches 1.18 V under AM 1.5 sunlight.


Nanoscale ◽  
2015 ◽  
Vol 7 (48) ◽  
pp. 20539-20546 ◽  
Author(s):  
Yongguang Tu ◽  
Jihuai Wu ◽  
Min Zheng ◽  
Jinghao Huo ◽  
Pei Zhou ◽  
...  

Highly crystalline TiO2quantum dots (QDs) are constructed as an ultrathin blocking layer in perovskite solar cells, which achieve a power conversion efficiency of 16.97%.


RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20982-20989 ◽  
Author(s):  
Yinhua Lv ◽  
Bing Cai ◽  
Qingshan Ma ◽  
Zenghua Wang ◽  
Jingyue(Jimmy) Liu ◽  
...  

Highly crystalline Nb:TiO2 nanospindles have been successfully exploited as efficient ETMs in planar perovskite solar cells, achieving a power conversion efficiency of 20.8%, superior to that of the undoped one (19.1%).


2016 ◽  
Vol 4 (17) ◽  
pp. 6521-6526 ◽  
Author(s):  
Xiao Chen ◽  
Li Juan Tang ◽  
Shuang Yang ◽  
Yu Hou ◽  
Hua Gui Yang

A low-temperature processed flower-like TiO2 array layer was prepared and utilized as ETL in perovskite solar cells, leading to an enhanced power conversion efficiency (15.71 %) than that of traditional mesoporous TiO2 layer based devices (13.25 %) with less hysteresis.


2016 ◽  
Vol 4 (32) ◽  
pp. 12543-12553 ◽  
Author(s):  
Furkan H. Isikgor ◽  
Bichen Li ◽  
Hai Zhu ◽  
Qinghua Xu ◽  
Jianyong Ouyang

Planar heterojunction perovskite solar cells with MA1−xFAxPbI3−yCly can exhibit a high power conversion efficiency (PCE) of up to 18.14%.


RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 35819-35826 ◽  
Author(s):  
Chuanliang Chen ◽  
Shasha Zhang ◽  
Shaohang Wu ◽  
Wenjun Zhang ◽  
Hongmei Zhu ◽  
...  

A power conversion efficiency of 17.9% has been obtained for the device with a critical BCP thickness of 5 nm. While if the BCP layer is too thin or too thick, charge accumulation will emerge and lead to device performance degradation.


2019 ◽  
Vol 7 (21) ◽  
pp. 13256-13264 ◽  
Author(s):  
Xiaobing Wang ◽  
Jihuai Wu ◽  
Yuqian Yang ◽  
Xuping Liu ◽  
Qiyao Guo ◽  
...  

Perovskite solar cells with vanadic oxide doping achieve a power conversion efficiency of 20.5%.


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