Low-cost air-stable perovskite solar cells by incorporating inorganic materials

Herein, we demonstrate a new fabrication strategy for low-cost and stable-operation perovskite solar cells (PSCs) suitable for commercialization. This is performed by fabrication of the device under ambient conditions using a Cs 0.05 (MA 0.17 FA 0.83 ) 0.95 Pb(Br 0.17 I 0.83 ) 3 formulation as the m...

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Bibliographic Details
Published in:New journal of chemistry 2021-01, Vol.45 (2), p.788-795
Main Authors: Heshmati, N, Mohammadi, M. R, Abachi, P, Martinez-Chapa, S. O
Format: Article
Language:English
Subjects:
Commercialization
Control equipment
Humidity
Inorganic materials
Low cost
Perovskites
Phosphorescence
Photovoltaic cells
Quantum efficiency
Relative humidity
Solar cells
Structural stability
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Summary:Herein, we demonstrate a new fabrication strategy for low-cost and stable-operation perovskite solar cells (PSCs) suitable for commercialization. This is performed by fabrication of the device under ambient conditions using a Cs 0.05 (MA 0.17 FA 0.83 ) 0.95 Pb(Br 0.17 I 0.83 ) 3 formulation as the mixed cation and halide (MCH) perovskite and CuInS 2 (CIS) as the inorganic hole transporting layer. The deposited MCH perovskite with uniform, compact and smooth microstructure containing equiaxed large grains showed excellent thermal and structural stability under intense conditions at 85 °C for 2 h in humid air ( i.e. , 45% relative humidity). Moreover, it had higher phosphorescence emission, absorption and bandgap energy than the conventional MAPbI 3 due to efficient conversion of PbI 2 to the perovskite compound, as further confirmed by XRD analysis. Photovoltaic measurements under operational conditions revealed that the MCH-based PSC showed a 27% higher photoconversion efficiency compared with the control device composed of MAPbI 3 caused by less charge recombination. The CIS-based MCH device aged for 30 days at 25 °C and 40% humidity retained 91% of the maximum efficiency with a low standard deviation of all photovoltaic parameters, indicating excellent potential for industrialization. Herein, we demonstrate a new fabrication strategy for low-cost and stable-operation perovskite solar cells (PSCs) suitable for commercialization.
ISSN:1144-0546
1369-9261
DOI:10.1039/d0nj04619a