Research Update: Behind the high efficiency of hybrid perovskite solar cells

Organic–inorganic hybrid perovskite solar cells (PSCs) have made immense progress in recent years, owing to outstanding optoelectronic properties of perovskite materials, such as high extinction coefficient, carrier mobility, and low exciton binding energy. Since the first appearance in 2009, the efficiency of PSCs has reached 23.3%. This has made them the most promising rival to silicon-based solar cells. However, there are still several issues to resolve to promote PSCs’ outdoor applications. In this review, three crucial aspects of PSCs, including high efficiency, environmental stability, and low-cost of PSCs, are described in detail. Recent in-depth studies on different aspects are also discussed for better understanding of these issues and possible solutions.

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Solvent Engineering for Intermediates Phase, All-Ambient-Air-Processed in Organic–Inorganic Hybrid Perovskite Solar Cells

Nanomaterials ◽

10.3390/nano9070915 ◽

2019 ◽

Vol 9 (7) ◽

pp. 915 ◽

Cited By ~ 4

Author(s):

Lei Shi ◽

Huiying Hao ◽

Jingjing Dong ◽

Tingting Zhong ◽

Chen Zhang ◽

...

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Intermediate Phase ◽

Perovskite Solar Cells ◽

Ambient Air ◽

Continuous Illumination ◽

Large Area ◽

Hybrid Perovskite ◽

Crystallization Procedure ◽

Output Efficiency

Intermediate phase is considered an important aspect to deeply understand the crystallization procedure in the growth of high-quality perovskite layers by an anti-solvent technique. However, the moisture influence on the intermediate phase formation is not clear in air conditions as yet. In this work, pure (FA0.2MA1.8)Pb3X8(DMSO·DMF) intermediate phase was obtained in as-prepared perovskite film by spin-coating the precursor of co-solvent (DMSO and DMF) in an ambient air (RH20–30%). Moreover, the appropriate quantity of ethyl acetate (C4H8O2, EA) also controls the formation of pure intermediate phase. The uniform and homogeneous perovskite film was obtained after annealing this intermediate film. Therefore, the best power conversion efficiency (PCE) of perovskite solar cells (PSCs) is 16.24% with an average PCE of 15.53%, of which almost 86% of its initial PCE was preserved after 30 days in air conditions. Besides, the steady-state output efficiency ups to 15.38% under continuous illumination. In addition, the PCE of large area device (100 mm2) reaches 11.11% with a little hysteresis effect. This work would give an orientation for PSCs production at the commercial level, which could lower the cost of fabricating the high efficiency PSCs.

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Metal-Organic Framework Materials for Perovskite Solar Cells

Polymers ◽

10.3390/polym12092061 ◽

2020 ◽

Vol 12 (9) ◽

pp. 2061

Author(s):

Do Yeon Heo ◽

Ha Huu Do ◽

Sang Hyun Ahn ◽

Soo Young Kim

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Metal Organic Framework ◽

Perovskite Solar Cells ◽

Dye Sensitized Solar Cells ◽

Hole Transport ◽

Framework Materials ◽

Hybrid Perovskite ◽

Hole Transport Layers ◽

Metal Organic

Metal-organic frameworks (MOFs) and MOF-derived materials have been used for several applications, such as hydrogen storage and separation, catalysis, and drug delivery, owing to them having a significantly large surface area and open pore structure. In recent years, MOFs have also been applied to thin-film solar cells, and attractive results have been obtained. In perovskite solar cells (PSCs), the MOF materials are used in the form of an additive for electron and hole transport layers, interlayer, and hybrid perovskite/MOF. MOFs have the potential to be used as a material for obtaining PSCs with high efficiency and stability. In this study, we briefly explain the synthesis of MOFs and the performance of organic and dye-sensitized solar cells with MOFs. Furthermore, we provide a detailed overview on the performance of the most recently reported PSCs using MOFs.

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Ultrasonic spray deposition of TiO2 electron transport layers for reproducible and high efficiency hybrid perovskite solar cells

Solar Energy ◽

10.1016/j.solener.2019.06.045 ◽

2019 ◽

Vol 188 ◽

pp. 697-705 ◽

Cited By ~ 3

Author(s):

Jingsong Sun ◽

Alexander R. Pascoe ◽

Steffen Meyer ◽

Qijie Wu ◽

Enrico Della Gaspera ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

High Efficiency ◽

Spray Deposition ◽

Perovskite Solar Cells ◽

Ultrasonic Spray ◽

Hybrid Perovskite

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A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells

Energy & Environmental Science ◽

10.1039/c7ee03654j ◽

2018 ◽

Vol 11 (4) ◽

pp. 960-969 ◽

Cited By ~ 21

Author(s):

Sergiu Draguta ◽

Jeffrey A. Christians ◽

Yurii V. Morozov ◽

Anselme Mucunzi ◽

Joseph S. Manser ◽

...

Keyword(s):

Solar Cells ◽

High Efficiency ◽

State Of The Art ◽

Perovskite Solar Cells ◽

Electron Traps ◽

Spatially Resolved ◽

Active Layers ◽

Hybrid Perovskite

Intrinsic electron traps in perovskite active layers limit the performance of state-of-the-art perovskite solar cells.

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Improved photovoltaic performance in perovskite solar cells based on CH3NH3PbI3 films fabricated under controlled relative humidity

RSC Advances ◽

10.1039/c5ra14587b ◽

2015 ◽

Vol 5 (114) ◽

pp. 93957-93963 ◽

Cited By ~ 21

Author(s):

Minghang Lv ◽

Xu Dong ◽

Xiang Fang ◽

Bencai Lin ◽

Shuai Zhang ◽

...

Keyword(s):

Solar Cells ◽

Relative Humidity ◽

High Efficiency ◽

Photovoltaic Performance ◽

Perovskite Solar Cells ◽

Hybrid Perovskite ◽

High Efficiency Solar Cells

The relative humidity and solvent is demonstrated for the controlled ambient crystallization of dense uniform hybrid-perovskite films for high-efficiency solar cells.

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Toward high efficiency for long-term stable Cesium doped hybrid perovskite solar cells via effective light management strategy

Journal of Power Sources ◽

10.1016/j.jpowsour.2021.230410 ◽

2021 ◽

Vol 510 ◽

pp. 230410

Author(s):

Wensheng Yan ◽

Liu Liu ◽

Wangnan Li ◽

Zhengli Wu ◽

Yue Zang ◽

...

Keyword(s):

Solar Cells ◽

Management Strategy ◽

High Efficiency ◽

Perovskite Solar Cells ◽

Stable Cesium ◽

Hybrid Perovskite ◽

Light Management

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High-Efficiency Planar Hybrid Perovskite Solar Cells Using Indium Sulfide as Electron Transport Layer

ACS Applied Energy Materials ◽

10.1021/acsaem.8b00726 ◽

2018 ◽

Vol 1 (8) ◽

pp. 4050-4056 ◽

Cited By ~ 11

Author(s):

Zhe Xu ◽

Jihuai Wu ◽

Yuqian Yang ◽

Zhang Lan ◽

Jianming Lin

Keyword(s):

Solar Cells ◽

Electron Transport ◽

High Efficiency ◽

Perovskite Solar Cells ◽

Transport Layer ◽

Electron Transport Layer ◽

Indium Sulfide ◽

Hybrid Perovskite

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Dopant-Free π-Conjugated Hole Transport Materials for Highly Stable and Efficient Perovskite Solar Cells

Frontiers in Chemistry ◽

10.3389/fchem.2021.664504 ◽

2021 ◽

Vol 9 ◽

Author(s):

Zhifeng Deng ◽

Shuaiwei Cui ◽

Kaichang Kou ◽

Dongxu Liang ◽

Xin Shi ◽

...

Keyword(s):

Solar Cells ◽

High Performance ◽

High Efficiency ◽

Molecular Design ◽

Perovskite Solar Cells ◽

Hole Mobility ◽

Hole Transport ◽

Free Hole ◽

Hygroscopic Properties ◽

Hybrid Perovskite

Current high-efficiency hybrid perovskite solar cells (PSCs) have been fabricated with doped hole transfer material (HTM), which has shown short-term stability. Doping applied in HTMs for PSCs can enhance the hole mobility and PSCs' power conversion efficiency, while the stability of PSCs will be significantly decreased due to inherent hygroscopic properties and chemical incompatibility. Development of dopant-free HTM with high hole mobility is a challenge and of utmost importance. In this review, a series of selected and typical π-conjugated dopant-free hole transport materials, mainly regarding small molecules, are reviewed, which could consequently help to further design high-performance dopant-free HTMs. In addition, an outline of the molecular design concept and also the perspective of ideal dopant-free HTMs were explored.

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