Please use this identifier to cite or link to this item: https://idr.l4.nitk.ac.in/jspui/handle/123456789/16333
Title: Improving the Performance of Carbon-Based Perovskite Solar Modules (70 cm2) by Incorporating Cesium Halide in Mesoporous TiO2
Authors: Keremane K.S.
Prathapani S.
Haur L.J.
Bruno A.
Priyadarshi A.
Adhikari A.V.
Mhaisalkar S.G.
Issue Date: 2021
Citation: ACS Applied Energy Materials Vol. 4 , 1 , p. 249 - 258
Abstract: We present the fabrication of highly efficient large-area carbon-based perovskite solar cells (C-PSCs) using CsX (X = Cl, Br, and I)-modified mesoporous (mp) TiO2 beads of 40 nm size as an electron transport material. Here, triple-layered scaffolds made of cesium halide-modified TiO2 exhibit efficient charge extraction as confirmed by enhanced photoluminescence quenching and inhibit the UV-activated degradation processes of perovskite, leading to an enhanced operational stability. Among the three cesium halide modifications, devices containing CsBr-modified TiO2 showed the highest short-circuit current density, yielding a photoconversion efficiency (PCE) of 12.59% of the device, with 0.7 cm2 active area and 11.55% for a large-area module (70 cm2). These devices are stable in an ambient atmosphere (25 °C, 65-70% RH) over 2700 h as well as at a high temperature (85 °C) over 750 h with virtually no hysteresis. © 2021 American Chemical Society. All rights reserved.
URI: https://doi.org/10.1021/acsaem.0c02213
http://idr.nitk.ac.in/jspui/handle/123456789/16333
Appears in Collections:1. Journal Articles

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