An Ultrathin Ferroelectric Perovskite Oxide Layer for High-Performance Hole Transport Material Free Carbon Based Halide Perovskite Solar Cells

2018 ◽  
Vol 29 (1) ◽  
pp. 1806506 ◽  
Author(s):  
Yinglong Yang ◽  
Zhenghao Liu ◽  
Wai Kit Ng ◽  
Lihua Zhang ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Oxide Layer ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Free Carbon ◽  
Perovskite Oxide ◽  
Halide Perovskite ◽  
Ferroelectric Perovskite ◽  
Carbon Based

Highly efficient and stable air-processed hole-transport-material free carbon based perovskite solar cells with caesium incorporation

2019 ◽  
Vol 55 (2) ◽  
pp. 218-221 ◽  
Author(s):  
Pei Liu ◽  
Youning Gong ◽  
Yuqing Xiao ◽  
Meng Su ◽  
Sen Kong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Free Carbon ◽  
Highly Efficient ◽  
Carbon Based

Cs containing triple cation HTM-free carbon based PSCs were fabricated out of a glovebox showing the best performance over 15%.

scholarly journals A Modified Sequential Deposition Route for High-Performance Carbon-Based Perovskite Solar Cells under Atmosphere Condition

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 481
Author(s):  
Jinyu Wu ◽  
Lei Zhang ◽  
Qiao Kang ◽  
Hongxi Shi ◽  
Long Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Manufacturing Cost ◽  
Lead Iodide ◽  
Capping Layer ◽  
Sequential Deposition ◽  
Carbon Based

Carbon-based hole transport material (HTM)-free perovskite solar cells have exhibited a promising commercialization prospect, attributed to their outstanding stability and low manufacturing cost. However, the serious charge recombination at the interface of the carbon counter electrode and titanium dioxide (TiO2) suppresses the improvement in the carbon-based perovskite solar cells’ performance. Here, we propose a modified sequential deposition process in air, which introduces a mixed solvent to improve the morphology of lead iodide (PbI2) film. Combined with ethanol treatment, the preferred crystallization orientation of the PbI2 film is generated. This new deposition strategy can prepare a thick and compact methylammonium lead halide (MAPbI3) film under high-humidity conditions, which acts as a natural active layer that separates the carbon counter electrode and TiO2. Meanwhile, the modified sequential deposition method provides a simple way to facilitate the conversion of the ultrathick PbI2 capping layer to MAPbI3, as the light absorption layer. By adjusting the thickness of the MAPbI3 capping layer, we achieved a power conversation efficiency (PCE) of 12.5% for the carbon-based perovskite solar cells.

Efficient Defect Passivation with Niacin for High-Performance and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Jing Ren ◽  
Shurong Wang ◽  
Jianxing Xia ◽  
Chengbo Li ◽  
Lisha Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Trap States ◽  
Carrier Recombination ◽  
Defect Passivation ◽  
Recombination Centers ◽  
Charge Carrier Recombination ◽  
Halide Perovskite

Defects, inevitably produced in the solution-processed halide perovskite films, can act as charge carrier recombination centers to induce severe energy loss in perovskite solar cells (PSCs). Suppressing these trap states...

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