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Optical Description of Mesostructured Organic–Inorganic Halide Perovskite Solar Cells

Anaya, Miguel, Lozano, Gabriel, Calvo, Mauricio E., Zhang, Wei, Johnston, Michael B., Snaith, Henry J. and Míguez, Hernán (2014) Optical Description of Mesostructured Organic–Inorganic Halide Perovskite Solar Cells The Journal of Physical Chemistry Letters, 6 (1). pp. 48-53.

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Abstract

Herein we describe both theoretically and experimentally the optical response of solution-processed organic–inorganic halide perovskite solar cells based on mesostructured scaffolds. We develop a rigorous theoretical model using a method based on the propagation of waves in layered media, which allows visualizing the way in which light is spatially distributed across the device and serves to quantify the fraction of light absorbed by each medium comprising the cell. The discrimination between productive and parasitic absorption yields an accurate determination of the internal quantum efficiency. State-of-the-art devices integrating mesoporous scaffolds infiltrated with perovskite are manufactured and characterized to support the calculations. This combined experimental and theoretical analysis provides a rational understanding of the optical behavior of perovskite cells and can be beneficial for the judicious design of devices with improved performance. Notably, our model justifies the presence of a solid perovskite capping layer in all of the highest efficiency perovskite solar cells based on thinner mesoporous scaffolds.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Anaya, MiguelUNSPECIFIEDUNSPECIFIED
Lozano, GabrielUNSPECIFIEDUNSPECIFIED
Calvo, Mauricio E.UNSPECIFIEDUNSPECIFIED
Zhang, Weiwz0003@surrey.ac.ukUNSPECIFIED
Johnston, Michael B.UNSPECIFIEDUNSPECIFIED
Snaith, Henry J.UNSPECIFIEDUNSPECIFIED
Míguez, HernánUNSPECIFIEDUNSPECIFIED
Date : 4 December 2014
Identification Number : https://doi.org/10.1021/jz502351s
Copyright Disclaimer : © 2014 American Chemical Society
Uncontrolled Keywords : Optical design; Perovskite; Photovoltaics
Depositing User : Clive Harris
Date Deposited : 02 Jun 2017 11:59
Last Modified : 05 Jun 2017 09:30
URI: http://epubs.surrey.ac.uk/id/eprint/841282

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