Perovskite Quantum Dots as Multifunctional Interlayers in Perovskite Solar Cells with Dopant-Free Organic Hole Transporting Layers

Grain boundaries in bulk perovskite films are considered as giant trapping sites for photo-generated carriers. Surface engineering via inorganic perovskite quantum dots has been employed for creating monolithically grained, pin-hole free perovskite films.

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Enhanced Efficiency of MAPbI3 Perovskite Solar Cells with FAPbX3 Perovskite Quantum Dots

Nanomaterials ◽

10.3390/nano9010121 ◽

2019 ◽

Vol 9 (1) ◽

pp. 121 ◽

Cited By ~ 8

Author(s):

Lung-Chien Chen ◽

Ching-Ho Tien ◽

Zong-Liang Tseng ◽

Jun-Hao Ruan

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Solar Cell ◽

Cell Structure ◽

Short Circuit ◽

Perovskite Solar Cells ◽

Hole Transport ◽

Transport Layer ◽

Electron Transport Layer ◽

Perovskite Quantum Dots

We describe a method to enhance power conversion efficiency (PCE) of MAPbI3 perovskite solar cell by inserting a FAPbX3 perovskite quantum dots (QD-FAPbX3) layer. The MAPbI3 and QD-FAPbX3 layers were prepared using a simple, rapid spin-coating method in a nitrogen-filled glove box. The solar cell structure consists of ITO/PEDOT:PSS/MAPbI3/QD-FAPbX3/C60/Ag, where PEDOT:PSS, MAPbI3, QD-FAPbX3, and C60 were used as the hole transport layer, light-absorbing layer, absorption enhance layer, and electron transport layer, respectively. The MAPbI3/QD-FAPbX3 solar cells exhibit a PCE of 7.59%, an open circuit voltage (Voc) of 0.9 V, a short-circuit current density (Jsc) of 17.4 mA/cm2, and a fill factor (FF) of 48.6%, respectively.

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Surface modification induced by perovskite quantum dots for triple-cation perovskite solar cells

Nano Energy ◽

10.1016/j.nanoen.2019.104189 ◽

2020 ◽

Vol 67 ◽

pp. 104189 ◽

Cited By ~ 14

Author(s):

Wenqiang Yang ◽

Rui Su ◽

Deying Luo ◽

Qin Hu ◽

Feng Zhang ◽

...

Keyword(s):

Quantum Dots ◽

Surface Modification ◽

Solar Cells ◽

Perovskite Solar Cells ◽

Perovskite Quantum Dots

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Boost the performance of inverted perovskite solar cells with PEDOT:PSS/Graphene quantum dots composite hole transporting layer

Organic Electronics ◽

10.1016/j.orgel.2019.105575 ◽

2020 ◽

Vol 78 ◽

pp. 105575 ◽

Cited By ~ 4

Author(s):

Weiwei Li ◽

Nian Cheng ◽

Yang Cao ◽

Zhiqiang Zhao ◽

Zhenyu Xiao ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Graphene Quantum Dots ◽

Perovskite Solar Cells ◽

Hole Transporting

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Efficient chromium ion passivated CsPbCl3:Mn perovskite quantum dots for photon energy conversion in perovskite solar cells

Journal of Materials Chemistry C ◽

10.1039/d0tc03115a ◽

2020 ◽

Vol 8 (35) ◽

pp. 12323-12329

Author(s):

Donglei Zhou ◽

Li Tao ◽

Zhongzheng Yu ◽

Jiannan Jiao ◽

Wen Xu

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Energy Conversion ◽

Photon Energy ◽

Perovskite Solar Cells ◽

Chromium Ion ◽

Perovskite Quantum Dots

The efficient Cr3+ passivated CsPbCl3:Mn2+ perovskite quantum dots were used to enhance the performance of perovskite solar cells.

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Efficient inorganic solid solar cells composed of perovskite and PbS quantum dots

Nanoscale ◽

10.1039/c5nr00420a ◽

2015 ◽

Vol 7 (21) ◽

pp. 9902-9907 ◽

Cited By ~ 52

Author(s):

Yi Li ◽

Jun Zhu ◽

Yang Huang ◽

Junfeng Wei ◽

Feng Liu ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Low Cost ◽

Power Conversion ◽

Perovskite Solar Cells ◽

Hole Transporting ◽

Hole Transporting Material ◽

Pbs Quantum Dots

Mesoporous perovskite solar cells based on colloidal PbS QDs as a low cost inorganic hole-transporting material achieved a power conversion efficiency of nearly 8% with a relatively good stability.

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Cost-efficient, Effect of Low-Quality PbI2 Purification to Enhance Performances of Perovskite Quantum Dots and Perovskite Solar Cells

Energies ◽

10.3390/en14010201 ◽

2021 ◽

Vol 14 (1) ◽

pp. 201

Author(s):

ChaeHyun Lee ◽

YeJi Shin ◽

Gyeong G. Jeon ◽

Dongwoo Kang ◽

Jiwon Jung ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Photophysical Properties ◽

Perovskite Solar Cells ◽

Precursor Solution ◽

Modern Society ◽

High Quality ◽

Material Development ◽

Research Fields ◽

Perovskite Quantum Dots

In modern society, high-quality material development and a large stable supply are key to perform frontier research and development. However, there are negative issues to address to utilize high-quality resources with a large stable supply for research, such as economic accessibility, commercialization, and so on. One of the cutting-edge research fields, perovskite-related research, usually requires high-quality chemicals with outstanding purity (>99%). We developed an economically feasible PbI2 precursor with around 1/20 cost-down for perovskite/perovskite quantum dots through recrystallization and/or hydrothermal purification. Following the methodology, the quantum dots from both as-prepared and purified PbI2 demonstrated identical photophysical properties, with a photoluminescence quantum yield (PLQY) of 52.61% using the purified PbI2 vs. 45.83% PLQY using commercial PbI2. The role of hydrothermal energy was also checked against the problematic PbI2, and we checked whether the hydrothermal energy could contribute to the hindrance of undesired particle formation in the precursor solution, which enables them to form enlarged grain size from 179 ± 80 to 255 ± 130 nm for higher photoconversion efficiency of perovskite solar cells from 14.77 ± 1.82% to 15.18 ± 1.92%.

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