Effect of the organic cation on the optical properties of Lead Iodine perovskites

Tablero Crespo, César (2019). Effect of the organic cation on the optical properties of Lead Iodine perovskites. "Solar Energy Materials and Solar Cells", v. 200 (n. 110022); pp. 1-5. ISSN 0927-0248. https://doi.org/10.1016/j.solmat.2019.110022.

Description

Title: Effect of the organic cation on the optical properties of Lead Iodine perovskites
Author/s:
  • Tablero Crespo, César
Item Type: Article
Título de Revista/Publicación: Solar Energy Materials and Solar Cells
Date: September 2019
ISSN: 0927-0248
Volume: 200
Subjects:
Freetext Keywords: Perovskites, Optical properties, Photovoltaic, Semiconductors
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
UPM's Research Group: Silicio y Nuevos Conceptos para Células Solares
Creative Commons Licenses: None

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Abstract

The effect of 14 organic cations on the optical properties of the lead iodine perovskite is analyzed. The electronic and optical properties are obtained using first principles. The absorption coefficients are split into inter-atomic species components in order to quantify all of the contributions. For energies close to the bandgaps, the main contribution is from the Pb–Pb intra-species transitions. For higher energy this contribution is still important in addition to I–I and Pb–I contributions, and to the 3 and 4 species term. Almost all absorption properties are qualitatively similar. Furthermore, this absorption coefficient splitting also allows the optical characteristics that the substitution of Pb by another element should satisfy to be identified in order to reduce the toxicity because of Pb while maintaining a high absorption capacity.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2015-64189-C3-1-RINVENTA-PVUnspecifiedUnspecified
Horizon 2020787289GRECOUnspecifiedUnspecified

More information

Item ID: 57086
DC Identifier: http://oa.upm.es/57086/
OAI Identifier: oai:oa.upm.es:57086
DOI: 10.1016/j.solmat.2019.110022
Official URL: https://www.sciencedirect.com/science/article/pii/S0927024819303514
Deposited by: Prof Cesar Tablero
Deposited on: 28 Oct 2019 06:50
Last Modified: 28 Oct 2019 06:50
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