Improving the efficiency of perovskite solar cells using modification of CH3NH3PbI3 active layer: the effect of methylammonium iodide loading time

2020 ◽  
Vol 52 (4) ◽  
Author(s):  
Maryam Alidaei ◽  
Morteza Izadifard ◽  
Mohammad Ebrahim Ghazi
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Perovskite Solar Cells

Air-Stable, Efficient Mixed-Cation Perovskite Solar Cells with Cu Electrode by Scalable Fabrication of Active Layer

2016 ◽  
Vol 6 (11) ◽  
pp. 1600372 ◽  
Author(s):  
Yehao Deng ◽  
Qingfeng Dong ◽  
Cheng Bi ◽  
Yongbo Yuan ◽  
Jinsong Huang
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Mixed Cation

scholarly journals A high‐efficiency and stable perovskite solar cell fabricated in ambient air using a polyaniline passivation layer

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Dong In Kim ◽  
Ji Won Lee ◽  
Rak Hyun Jeong ◽  
Jin-Hyo Boo
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Radiative Recombination ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Perovskite Solar Cell ◽  
Passivation Layer ◽  
Transport Layer ◽  
Electron Transport Layer

AbstractOver the past number of years, the power conversion efficiency of perovskite solar cells has remained at 25.5%, reflecting a respectable result for the general incorporation of organometallic trihalide perovskite solar cells. However, perovskite solar cells still suffer from long-term stability issues. Perovskite decomposes upon exposure to moisture, thermal, and UV-A light. Studies related to this context have remained ongoing. Recently, research was mainly conducted on the stability of perovskite against non-radiative recombination. This study improved a critical instability in perovskite solar cells arising from non-radiative recombination and UV-A light using a passivation layer. The passivation layer comprised a polyaniline (PANI) polymer as an interfacial modifier inserted between the active layer and the electron transport layer. Accordingly, the UV-A light did not reach the active layer and confined the Pb2+ ions at PANI passivation layer. This study optimized the perovskite solar cells by controlling the concentration, thickness and drying conditions of the PANI passivation layer. As a result, the efficiency of the perovskite solar cell was achieved 15.1% and showed over 84% maintain in efficiency in the ambient air for one month using the 65 nm PANI passivation layer.

scholarly journals Environmental Friendly Multi-step Processing of Efficient Mixed-cation Mixed Halide Perovskite Solar Cells from Chemically Bath Deposited Lead Sulphide

2021 ◽  
Author(s):  
Sahel Gozalzadeh ◽  
Farzad Nasirpouri ◽  
Sang Il Seok
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Processing Technique ◽  
Cell Performance ◽  
Lead Sulphide ◽  
Solar Cell Performance ◽  
Mixed Cation ◽  
Halide Perovskite

Abstract Organic-inorganic hybrid perovskite is the most promising active layer for new generation of solar cells. Despite of highly efficient perovskite active layer conventionally fabricated by spin coating methods, the need for using toxic solvents like dimethylformamide (DMF) required for dissolving low soluble metal precursors as well as the difficulties for upscaling the process have restricted their practical development. To deal with these shortcomings, in this work, lead sulphide as the lead metal precursor was produced by aqueous chemical bath deposition. PbS films were subsequently chemically converted to PbI2 and finally to mixed-cation mixed halide perovskite films. The microstructural, optical and solar cell performance of mixed cation mixed halide perovskite films were exploited. Results show that controlling the morphology of PbI2 platelets achieved from PbS precursor films enabled efficient conversion to perovskite. Using this processing technique, smooth and pin hole-free perovskite films having columnar grains of about 800 nm and a bandgap of 1.55 eV were produced. The solar cell performance consisting of such perovskite layers gave rise to a notable power conversion efficiency of 11.35% under standard solar conditions. The proposed processing technique is a very promising environmentally friendly method for the production of large-scale high efficient perovskite solar cells.

scholarly journals Efficient air-stable perovskite solar cells with a (FAI)0.46(MAI)0.40(MABr)0.14(PbI2)0.86(PbBr2)0.14 active layer fabricated via a vacuum flash-assisted method under RH > 50%

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10148-10154 ◽  
Author(s):  
Li Chen ◽  
Hui Cao ◽  
Shurong Wang ◽  
Yuxing Luo ◽  
Tao Tao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Relative Humidity ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Solution Processing

In this work, we present a new kind of perovskite, (FAI)0.46(MAI)0.40(MABr)0.14(PbI2)0.86(PbBr2)0.14, the vacuum flash-assisted solution processing (VASP) of which can be carried out under relative humidity (RH) higher than 50% in ambient air.

scholarly journals Hysteresis phenomena in perovskite solar cells: the many and varied effects of ionic accumulation

2017 ◽  
Vol 19 (4) ◽  
pp. 3094-3103 ◽  
Author(s):  
Daniel A. Jacobs ◽  
Yiliang Wu ◽  
Heping Shen ◽  
Chog Barugkin ◽  
Fiona J. Beck ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Numerical Device ◽  
The Many ◽  
Mobile Ions ◽  
Hysteresis Phenomena

A variety of unexpected characterization results exhibited by perovskite solar cells are linked to the presence of mobile ions in the active layer, as demonstrated by detailed numerical device models.

Sign in / Sign up

Export Citation Format

Share Document