Highly efficient planar perovskite solar cells achieved by simultaneous defect engineering and formation kinetic control

2018 ◽  
Vol 6 (46) ◽  
pp. 23865-23874 ◽  
Author(s):  
Jiaqi Cheng ◽  
Hong Zhang ◽  
Shaoqing Zhang ◽  
Dan Ouyang ◽  
Zhanfeng Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Kinetic Control ◽  
Defect Engineering ◽  
High Quality ◽  
Formation Kinetic

Incorporation of non-fullerene acceptor into perovskite precursor solution is demonstrated to form high-quality perovskite films with low defect concentrations. The power conversion efficiency of low-temperature processed perovskite solar cells is improved up to 20.10%.

The effect of methyl ammonium chloride doping for perovskite solar cells on structure, crystallization and power conversion efficiency

2020 ◽  
pp. 2150096
Author(s):  
Jing Gao ◽  
Chujian Liao ◽  
Yanqun Guo ◽  
Difan Zhou ◽  
Zhigang Zeng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Surface Defects ◽  
Short Circuit ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Short Circuit Current ◽  
High Quality ◽  
Perovskite Layer

The perovskite membrane with large particle size, uniform coverage and high quality is the prerequisite for the preparation of efficient and stable perovskite solar cells. Various additives have been used to increase the grain size and improve the film morphology and crystal quality. In this paper, methylammonium chloride (MACl) was proposed to obtain high crystalline quality of [Formula: see text] perovskite absorption layer. The results show that the adding ammonium methyl chloride into the precursor of tricationic perovskite not only passivates surface defects to form high-quality and large-grain perovskite films, but also facilitates the formation of pure [Formula: see text]-phase [Formula: see text]. Meanwhile, the designed perovskite precursor solutions were used to fabricate mesoporous perovskite solar cells (PSCs). Owing to the perovskite layer consisting of optimized MACl doping, the short-circuit current density [Formula: see text] of PSCs reaches 23.81 mA/cm2, which is 2.73 mA/cm2 higher than the primary [Formula: see text] based on PSCs. The obtained power conversion efficiency (PCE) increases from 13.67% to 17.59%.

scholarly journals Efficient luminescent solar cells based on tailored mixed-cation perovskites

2016 ◽  
Vol 2 (1) ◽  
pp. e1501170 ◽  
Author(s):  
Dongqin Bi ◽  
Wolfgang Tress ◽  
M. Ibrahim Dar ◽  
Peng Gao ◽  
Jingshan Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Weight Percent ◽  
Open Circuit ◽  
Single Step ◽  
Molar Ratio

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.

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.

A low-temperature processed flower-like TiO2 array as an electron transport layer for high-performance perovskite solar cells

2016 ◽  
Vol 4 (17) ◽  
pp. 6521-6526 ◽  
Author(s):  
Xiao Chen ◽  
Li Juan Tang ◽  
Shuang Yang ◽  
Yu Hou ◽  
Hua Gui Yang
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer

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.

Performance improvement of MXene-based perovskite solar cells upon property transition from metallic to semiconductive by oxidation of Ti3C2Tx in air

2021 ◽  
Author(s):  
Lin Yang ◽  
Dongxiao Kan ◽  
Chunxiang Dall'Agnese ◽  
Yohan Dall'Agnese ◽  
Baoning Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Power Conversion Efficiency ◽  
Performance Improvement ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer

Oxidization of Ti3C2Tx hydrocolloid is carried out to tune its properties desirable for an electron transport layer in low-temperature processed perovskite solar cells, rendering a champion power conversion efficiency of 18.29%.

Hydrobromic acid assisted crystallization of MAPbI3−xClx for enhanced power conversion efficiency in perovskite solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 55720-55725 ◽  
Author(s):  
Jin Huang ◽  
Minqiang Wang ◽  
Lei Ding ◽  
Zhi Yang ◽  
Ke Zhang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Hydrobromic Acid ◽  
Crystallization Process ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
High Quality

Enhanced performance of perovskite solar cells based on the application of high quality MAPbI3−xClx films developed via a hydrobromic acid assisted fast crystallization process is reported.

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
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Spin Coating ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Great Influence ◽  
Precursor Solution ◽  
Processing Parameters

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.

A low-temperature carbon electrode with good perovskite compatibility and high flexibility in carbon based perovskite solar cells

2019 ◽  
Vol 55 (19) ◽  
pp. 2765-2768 ◽  
Author(s):  
Shiyu Wang ◽  
Pei Jiang ◽  
Wenjian Shen ◽  
Anyi Mei ◽  
Sixing Xiong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Carbon Electrode ◽  
High Flexibility ◽  
Carbon Based

A low-temperature carbon electrode with good perovskite compatibility is employed in hole-transport-material free perovskite solar cells, and a champion power conversion efficiency (PCE) of 11.7% is obtained.

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.

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