Surface modification via self-assembling large cations for improved performance and modulated hysteresis of perovskite solar cells

Novel surface modification of self-assembling large cations enables the achievement of high quality perovskite films for hysteresis-free and stable solar cells with an optimized efficiency over 20%.

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Highly-improved performance of inverted planar perovskite solar cells by glucose modification

Journal of Materials Chemistry C ◽

10.1039/d0tc00365d ◽

2020 ◽

Vol 8 (17) ◽

pp. 5894-5903 ◽

Cited By ~ 1

Author(s):

Yunxin Zhang ◽

Siqi Chen ◽

Hao Chen ◽

Guodong Zhang ◽

Min Zhao ◽

...

Keyword(s):

Solar Cells ◽

Perovskite Solar Cells ◽

High Quality ◽

Device Efficiency ◽

Improved Performance

Glucose is introduced for the preparation of high-quality MAPbI3 perovskite film, boosting the device efficiency to 20.15% with suppressed hysteresis.

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High-Quality Borophene Quantum Dots Realization and Their Application in Photovoltaic Device

Journal of Materials Chemistry A ◽

10.1039/d1ta06524f ◽

2021 ◽

Author(s):

Anran Zhao ◽

Yu Han ◽

Yuhang Che ◽

Qi Liu ◽

Xiyang Wang ◽

...

Keyword(s):

Quantum Dots ◽

Surface Modification ◽

Solar Cells ◽

Charge Transport ◽

Perovskite Solar Cells ◽

Photovoltaic Device ◽

Effective Strategy ◽

High Quality ◽

Recombination Probability ◽

Carrier Recombination

Surface modification is an effective strategy to promote charge transport and extraction, reduce the carrier recombination probability and ultimately improve the performance of perovskite solar cells (PSCs). Borophene is the...

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Vapour Assisted Morphological Tailoring of Lead-Free Bismuth Based Perovskite Solar Cells for Improved Performance and Stability

10.29363/nanoge.ap-hopv.2018.035 ◽

2017 ◽

Author(s):

Sagar Jain

Keyword(s):

Solar Cells ◽

Perovskite Solar Cells ◽

Lead Free ◽

Improved Performance

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Precursor engineering for high-quality Cs2AgBiBr6 films toward efficient lead-free double perovskite solar cells

Journal of Materials Chemistry C ◽

10.1039/d1tc01786a ◽

2021 ◽

Author(s):

Ping Hou ◽

Wenxiang Yang ◽

Ning Wan ◽

Zhi Fang ◽

Jinju Zheng ◽

...

Keyword(s):

Solar Cells ◽

Perovskite Solar Cells ◽

Control Sample ◽

Double Perovskite ◽

Lead Free ◽

High Quality ◽

Precursor Engineering ◽

First Time

We report a facile BiBr3(DMSO)2 adduct process to produce high-quality Cs2AgBiBr6 films with large grains for the first time, which leads to an enhancement of over 40% on the PCE of Cs2AgBiBr6-based solar cells compared to that of the control sample.

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Ambient Air Temperature Assisted Crystallization for Inorganic CsPbI2Br Perovskite Solar Cells

Molecules ◽

10.3390/molecules26113398 ◽

2021 ◽

Vol 26 (11) ◽

pp. 3398

Author(s):

Yi Long ◽

Kun Liu ◽

Yongli Zhang ◽

Wenzhe Li

Keyword(s):

Solar Cells ◽

Air Temperature ◽

High Performance ◽

Defect Density ◽

Perovskite Solar Cells ◽

Ambient Air ◽

Dark Phase ◽

High Quality ◽

Ambient Air Temperature ◽

Air Atmosphere

Inorganic cesium lead halide perovskites, as alternative light absorbers for organic–inorganic hybrid perovskite solar cells, have attracted more and more attention due to their superb thermal stability for photovoltaic applications. However, the humid air instability of CsPbI2Br perovskite solar cells (PSCs) hinders their further development. The optoelectronic properties of CsPbI2Br films are closely related to the quality of films, so preparing high-quality perovskite films is crucial for fabricating high-performance PSCs. For the first time, we demonstrate that the regulation of ambient temperature of the dry air in the glovebox is able to control the growth of CsPbI2Br crystals and further optimize the morphology of CsPbI2Br film. Through controlling the ambient air temperature assisted crystallization, high-quality CsPbI2Br films are obtained, with advantages such as larger crystalline grains, negligible crystal boundaries, absence of pinholes, lower defect density, and faster carrier mobility. Accordingly, the PSCs based on as-prepared CsPbI2Br film achieve a power conversion efficiency of 15.5% (the maximum stabilized power output of 15.02%). Moreover, the optimized CsPbI2Br films show excellent robustness against moisture and oxygen and maintain the photovoltaic dark phase after 3 h aging in an air atmosphere at room temperature and 35% relative humidity (R.H.). In comparison, the pristine films are completely converted to the yellow phase in 1.5 h.

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