Room-temperature processed films of colloidal carved rod-shaped nanocrystals of reduced tungsten oxide as interlayers for perovskite solar cells

Colloidal one-dimensional carved nanocrystals of tungsten oxide are successfully integrated into perovskite solar cells by facile solution-cast-only deposition at room temperature.

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Achieving efficient flexible perovskite solar cells with room-temperature processed tungsten oxide electron transport layer

Journal of Power Sources ◽

10.1016/j.jpowsour.2019.227157 ◽

2019 ◽

Vol 440 ◽

pp. 227157 ◽

Cited By ~ 9

Author(s):

Fengyou Wang ◽

Yuhong Zhang ◽

Meifang Yang ◽

Jinyue Du ◽

Lili Yang ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

Tungsten Oxide ◽

Room Temperature ◽

Perovskite Solar Cells ◽

Transport Layer ◽

Electron Transport Layer

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Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽

10.3390/nano11061489 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1489

Author(s):

Bhaskar Parida ◽

Saemon Yoon ◽

Dong-Won Kang

Keyword(s):

Solar Cells ◽

Indium Tin Oxide ◽

High Performance ◽

Room Temperature ◽

Low Cost ◽

Perovskite Solar Cells ◽

Ambient Air ◽

Plasma Damage ◽

Temperature Solution ◽

Ito Nanoparticles

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

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Water repellent room temperature vulcanized silicone for enhancing the long-term stability of perovskite solar cells

Solar Energy ◽

10.1016/j.solener.2021.02.035 ◽

2021 ◽

Vol 218 ◽

pp. 28-34

Author(s):

Mahmoud Samadpour ◽

Mahsa Heydari ◽

Mahdi Mohammadi ◽

Parisa Parand ◽

Nima Taghavinia

Keyword(s):

Solar Cells ◽

Room Temperature ◽

Perovskite Solar Cells ◽

Water Repellent ◽

Term Stability ◽

Long Term Stability

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Room Temperature Processed Double Electron Transport Layers for Efficient Perovskite Solar Cells

Nanomaterials ◽

10.3390/nano11020329 ◽

2021 ◽

Vol 11 (2) ◽

pp. 329

Author(s):

Wen Huang ◽

Rui Zhang ◽

Xuwen Xia ◽

Parker Steichen ◽

Nanjing Liu ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Room Temperature ◽

Deposition Time ◽

Power Conversion ◽

Perovskite Solar Cells ◽

Electron Transport Layer ◽

Double Electron

Zinc Oxide (ZnO) has been regarded as a promising electron transport layer (ETL) in perovskite solar cells (PSCs) owing to its high electron mobility. However, the acid-nonresistance of ZnO could destroy organic-inorganic hybrid halide perovskite such as methylammonium lead triiodide (MAPbI3) in PSCs, resulting in poor power conversion efficiency (PCE). It is demonstrated in this work that Nb2O5/ZnO films were deposited at room temperature with RF magnetron sputtering and were successfully used as double electron transport layers (DETL) in PSCs due to the energy band matching between Nb2O5 and MAPbI3 as well as ZnO. In addition, the insertion of Nb2O5 between ZnO and MAPbI3 facilitated the stability of the perovskite film. A systematic investigation of the ZnO deposition time on the PCE has been carried out. A deposition time of five minutes achieved a ZnO layer in the PSCs with the highest power conversion efficiency of up to 13.8%. This excellent photovoltaic property was caused by the excellent light absorption property of the high-quality perovskite film and a fast electron extraction at the perovskite/DETL interface.

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