A methylammonium iodide healing method for CH3NH3PbI3 perovskite solar cells with high fill factor over 80%

2021 ◽  
Vol 42 (11) ◽  
pp. 112202
Author(s):  
Zhen Li ◽  
Guanjun Yang
Keyword(s):  
Heat Treatment ◽  
Thermal Decomposition ◽  
Solar Cells ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photoluminescence Intensity ◽  
High Quality ◽  
High Fill Factor

Abstract Repressing the thermal decomposition during the process of heat treatment plays an indispensable part in the preparation of perovskite films. Here, a methylammonium iodide healing method was applied to prevent the volatilization of the organic component inside the perovskite structure during the heat treatment. High-quality CH3NH3PbI3 film with a much larger grain size over 800 nm was successfully fabricated via this healing method. Besides, the absorption and photoluminescence intensity were also both improved. Finally, the best power conversion efficiency of 18.89% with a fill factor over 80% was realized in an n–i–p configuration while possessing outstanding stability. This work suggests that methylammonium iodide healing method is a reliable way to promote crystal growth and improve the photovoltaic performance and humidity stability of the CH3NH3PbI3 solar cells.

scholarly journals Lithium-Based Upconversion Nanoparticles for High Performance Perovskite Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2909
Author(s):  
Masfer Alkahtani ◽  
Anas Ali Almuqhim ◽  
Hussam Qasem ◽  
Najla Alsofyani ◽  
Anfal Alfahd ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Upconversion Nanoparticles ◽  
Lithium Ions ◽  
Energy Applications ◽  
Higher Power

In this work, we report an easy, efficient method to synthesize high quality lithium-based upconversion nanoparticles (UCNPs) which combine two promising materials (UCNPs and lithium ions) known to enhance the photovoltaic performance of perovskite solar cells (PSCs). Incorporating the synthesized YLiF4:Yb,Er nanoparticles into the mesoporous layer of the PSCs cells, at a certain doping level, demonstrated a higher power conversion efficiency (PCE) of 19%, additional photocurrent, and a better fill factor (FF) of 82% in comparison to undoped PSCs (PCE = ~16.5%; FF = 71%). The reported results open a new avenue toward efficient PSCs for renewable energy applications.

High-quality organohalide lead perovskite films fabricated by layer-by-layer alternating vacuum deposition for high efficiency photovoltaics

2017 ◽  
Vol 1 (8) ◽  
pp. 1520-1525 ◽  
Author(s):  
Mohammad Mahdi Tavakoli ◽  
Abdolreza Simchi ◽  
Xiaoliang Mo ◽  
Zhiyong Fan
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Layer By Layer ◽  
Vacuum Deposition ◽  
High Quality ◽  
High Fill Factor

Fabrication of efficient perovskite solar cells (with a high fill factor) using layer-by-layer alternating (LBLA) vacuum deposition with highly crystalline and uniform perovskite films.

Synthesis of a side-chain hole transporting polymer through Mitsunobu post-functionalization for efficient inverted perovskite solar cells

2020 ◽  
Vol 11 (16) ◽  
pp. 2883-2888 ◽  
Author(s):  
Liuyuan Lan ◽  
Xiang Deng ◽  
Jie Zhang ◽  
Jingdong Luo ◽  
Alex K.-Y. Jen
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Fill Factor ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Side Chain ◽  
Hole Transporting ◽  
High Fill Factor ◽  
Post Functionalization

Mitsunobu post-functionalization was utilized to construct a new efficient dopant-free side-chain hole transporting polymer for inverted perovskite solar cells, exhibiting a power conversion efficiency of 17.75% and a high fill factor over 81%.

scholarly journals Effect of guanidinium chloride in eliminating O2− electron extraction barrier on a SnO2 surface to enhance the efficiency of perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19513-19520 ◽  
Author(s):  
Miao Yu ◽  
Lijia Chen ◽  
Guannan Li ◽  
Cunyun Xu ◽  
Chuanyao Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Power Conversion Efficiency ◽  
Fill Factor ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Oxygen Species ◽  
Guanidinium Chloride ◽  
Adsorbed Oxygen Species ◽  
Electron Extraction

The charge transfer hindrance of adsorbed oxygen species on SnO2 is successfully reduced by modifying it with guanidinium chloride, improving the power conversion efficiency from 15.33% to 18.46% (after modification) with maximum fill factor of 80%.

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%.

Inverted Planar Perovskite Solar Cells with a High Fill Factor and Negligible Hysteresis by the Dual Effect of NaCl-Doped PEDOT:PSS

2017 ◽  
Vol 9 (50) ◽  
pp. 43902-43909 ◽  
Author(s):  
Lijun Hu ◽  
Kuan Sun ◽  
Ming Wang ◽  
Wei Chen ◽  
Bo Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Dual Effect ◽  
High Fill Factor

Surface treatment via Li-bis-(trifluoromethanesulfonyl) imide to eliminate the hysteresis and enhance the efficiency of inverted perovskite solar cells

2017 ◽  
Vol 5 (39) ◽  
pp. 10280-10287 ◽  
Author(s):  
Cong Chen ◽  
Guang Yang ◽  
Junjie Ma ◽  
Xiaolu Zheng ◽  
Zhiliang Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Treatment ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Long Term Stability

We showed that perovskite solar cells employing Li-treated NiOxas a hole transport layer demonstrated excellent photovoltaic performance, and obtained a power conversion efficiency of up to 18.03%. In addition, the device possessed good long-term stability.

Effect of bidentate and tridentate additives on the photovoltaic performance and stability of perovskite solar cells

2019 ◽  
Vol 7 (9) ◽  
pp. 4977-4987 ◽  
Author(s):  
Jiangzhao Chen ◽  
Seul-Gi Kim ◽  
Xiaodong Ren ◽  
Hyun Suk Jung ◽  
Nam-Gyu Park
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
High Quality

Fabrication of high-quality perovskite films with a large grain size and fewer defects is always crucial to achieve efficient and stable perovskite solar cells (PSCs).

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%.

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