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Suitability of K-doped (CH(NH2)2)x(CH3NH3)1-xPbI3 Perovskite Absorber for Energy Harvesting

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Title Suitability of K-doped (CH(NH2)2)x(CH3NH3)1-xPbI3 Perovskite Absorber for Energy Harvesting
 
Creator Singh, Harpreet
Dhakla, Shweta
Deendyal, Parvesh K
Kumar, Anand
Kumar, Sarvesh
Kashyap, Manish K
 
Subject Perovskite absorber
Solar cells
Thermal stability
UV-Vis absorption
 
Description 854-856
Formamidinium lead iodide (FAPbI3) based perovskite solar cells are more promising than methylammonium based
counterparts due to their higher thermal stability. But FAPbI3 film faces serious issue of photoactive phase instability at room
temperature, hindering its usefulness as absorber in perovskite solar cells (PSCs). Recently, this problem has been well
addressed through additive engineering. In this work, monovalent-cation engineering of FAPbI3 perovskite via MA+
(methylamine cation) and K+ (potassium cation) mixing is performed. We present a detailed analysis of effect of cation doping
on structural and optical properties of formamidine based perovskite material. The structural and optical characterizations show
positive effect of cation mixing on phase stabilization, crystallization, and absorbance of perovskite thin films. The crystallite
size is found to increase on doping with a maximum for K0.05(FA0.83MA0.17)0.95PbI3 sample. Also, the rise in absorbance in
UV-Visible region of electromagnetic spectra is observed with doping.
 
Date 2023-09-21T05:31:20Z
2023-09-21T05:31:20Z
2023-09
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/62556
https://doi.org/10.56042/ijpap.v61i10.2460
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(10) [October 2023]