The impacts of PbI2 purity on the morphology and device performance of one-step spray-coated planar heterojunction perovskite solar cells

2018 ◽  
Vol 2 (2) ◽  
pp. 436-443 ◽  
Author(s):  
Jiaxu Yao ◽  
Liyan Yang ◽  
Feilong Cai ◽  
Yu Yan ◽  
Robert S. Gurney ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Spray Coating ◽  
Device Performance ◽  
One Step ◽  
Planar Heterojunction

The purity of PbI2, although varying only from 98 to 99.9%, can significantly affect the crystallinity, grain size and boundaries of MAPbI3 films that were fabricated via one-step spray-coating, and ultimately determined the power conversion efficiency (PCE) of perovskite devices.

CH3NH3I post-treatment improves the performance of perovskite solar cells via eliminating the impure phases

2017 ◽  
Vol 10 (04) ◽  
pp. 1750049 ◽  
Author(s):  
Jingjing Liang ◽  
Chunjun Liang ◽  
Huimin Zhang ◽  
Mengjie Sun ◽  
Hong Liu ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Treatment Approach ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Post Treatment ◽  
Halide Perovskites ◽  
Planar Heterojunction

Organic–inorganic halide perovskites are currently generating extensive interest for applications in solar cells. The perovskite morphology and composition have significant roles in solar cells. Impure phases, which will influence the performance of solar cells, are inevitably present in the film of perovskite. We found that another MAI deposition on the previous perovskite could ameliorate the film. The post-deposited MAI participates in the reconstruction of the perovskite, leading to reduced amount of impure phase, increased grain size, increased absorption and significantly improved power conversion efficiency. The results demonstrate a treatment approach to fabricate efficient planar heterojunction perovskite solar cells.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

Slow surface passivation and crystal relaxation with additives to improve device performance and durability for tin-based perovskite solar cells

2018 ◽  
Vol 11 (9) ◽  
pp. 2353-2362 ◽  
Author(s):  
Efat Jokar ◽  
Cheng-Hsun Chien ◽  
Amir Fathi ◽  
Mohammad Rameez ◽  
Yu-Hao Chang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Surface Passivation ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Device Performance ◽  
Slow Surface ◽  
Effective Additive ◽  
Improve Device

Ethylenediammonium diiodide (EDAI2) served as an effective additive for tin-based perovskite solar cells to attain a power conversion efficiency approaching 9%.

scholarly journals Organo-metal halide perovskite-based solar cells with CuSCN as the inorganic hole selective contact

2014 ◽  
Vol 2 (32) ◽  
pp. 12754-12760 ◽  
Author(s):  
Sudam Chavhan ◽  
Oscar Miguel ◽  
Hans-Jurgen Grande ◽  
Victoria Gonzalez-Pedro ◽  
Rafael S. Sánchez ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Metal Halide ◽  
Solution Processed ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Planar Heterojunction

The viability of using solution-processed CuSCN films as inorganic hole selective contacts in perovskite solar cells is demonstrated, by reaching a power conversion efficiency of 6.4% in planar heterojunction-based devices.

Low temperature solution processed planar heterojunction perovskite solar cells with a CdSe nanocrystal as an electron transport/extraction layer

2014 ◽  
Vol 2 (43) ◽  
pp. 9087-9090 ◽  
Author(s):  
Ling Wang ◽  
Weifei Fu ◽  
Zhuowei Gu ◽  
Congcheng Fan ◽  
Xi Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Solution Processed ◽  
Temperature Solution ◽  
Planar Heterojunction

Power conversion efficiency up to 11.7% was achieved with a CdSe nanocrystal acting as an electron transport/extraction layer for perovskite solar cells under standard AM1.5G conditions in air.

scholarly journals Enhanced UV-light stability of planar heterojunction perovskite solar cells with caesium bromide interface modification

2016 ◽  
Vol 9 (2) ◽  
pp. 490-498 ◽  
Author(s):  
Wenzhe Li ◽  
Wei Zhang ◽  
Stephan Van Reenen ◽  
Rebecca J. Sutton ◽  
Jiandong Fan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Uv Irradiation ◽  
Conversion Efficiency ◽  
Uv Light ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Interface Modification ◽  
Light Stability ◽  
Planar Heterojunction

CsBr interface modification simultaneously enhances the device power conversion efficiency and improves the device resilience to UV irradiation.

scholarly journals High performance planar perovskite solar cells with a perovskite of mixed organic cations and mixed halides, MA1−xFAxPbI3−yCly

2016 ◽  
Vol 4 (32) ◽  
pp. 12543-12553 ◽  
Author(s):  
Furkan H. Isikgor ◽  
Bichen Li ◽  
Hai Zhu ◽  
Qinghua Xu ◽  
Jianyong Ouyang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Power ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Organic Cations ◽  
High Power Conversion Efficiency ◽  
Planar Heterojunction

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

scholarly journals Effect of BCP buffer layer on eliminating charge accumulation for high performance of inverted perovskite solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 35819-35826 ◽  
Author(s):  
Chuanliang Chen ◽  
Shasha Zhang ◽  
Shaohang Wu ◽  
Wenjun Zhang ◽  
Hongmei Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Buffer Layer ◽  
Conversion Efficiency ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Performance Degradation ◽  
Device Performance ◽  
Charge Accumulation

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.

Ru-Doping in TiO2electron transport layers of planar heterojunction perovskite solar cells for enhanced performance

2018 ◽  
Vol 6 (17) ◽  
pp. 4746-4752 ◽  
Author(s):  
Zhongzhong Xu ◽  
Xiong Yin ◽  
Yanjun Guo ◽  
Yuan Pu ◽  
Meng He
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Ru Doping ◽  
Planar Heterojunction

Ru-Doping in TiO2electron transport layers of planar perovskite solar cells improved the power conversion efficiency from 13.42% to 15.70%.

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