Photovoltaic application of the V, Cr and Mn-doped cadmium thioindate

Tablero Crespo, César (2014). Photovoltaic application of the V, Cr and Mn-doped cadmium thioindate. "Journal of Alloys and Compounds", v. 591 ; pp. 22-28. ISSN 0925-8388. https://doi.org/10.1016/j.jallcom.2013.12.184.

Description

Title: Photovoltaic application of the V, Cr and Mn-doped cadmium thioindate
Author/s:
  • Tablero Crespo, César
Item Type: Article
Título de Revista/Publicación: Journal of Alloys and Compounds
Date: April 2014
ISSN: 0925-8388
Volume: 591
Subjects:
Freetext Keywords: Electronic structure; Semiconductors; Photovoltaics; Intermediate band
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The CdIn2S4 spinel semiconductor is a potential photovoltaic material due to its energy band gap and absorption properties. These optoelectronic properties can be potentiality improved by the insertion of intermediate states into the energy bandgap. We explore this possibility using M = Cr, V and Mn as an impurity. We analyze with first-principles almost all substitutions of the host atoms by M at the octahedral and tetrahedral sites in the normal and inverse spinel structures. In almost all cases, the impurities introduce deeper bands into the host energy bandgap. Depending on the site substitution, these bands are full, empty or partially-full. It increases the number of possible inter-band transitions and the possible applications in optoelectronic devices. The contribution of the impurity states to these bands and the substitutional energies indicate that these impurities are energetically favorable for some sites in the host spinel. The absorption coefficients in the independent-particle approximation show that these deeper bands open additional photon absorption channels. It could therefore increase the solar-light absorption with respect to the host.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7EC/FP7/283798NGCPVUNIVERSIDAD POLITECNICA DE MADRIDA new generation of concentrator photovoltaic cells, modules and systems
Madrid Regional GovernmentS-2009/ENE-1477UnspecifiedUnspecifiedUnspecified
Government of SpainPIB2010US-00096UnspecifiedUnspecifiedUnspecified

More information

Item ID: 37182
DC Identifier: http://oa.upm.es/37182/
OAI Identifier: oai:oa.upm.es:37182
DOI: 10.1016/j.jallcom.2013.12.184
Official URL: http://www.sciencedirect.com/science/article/pii/S0925838813031770
Deposited by: Memoria Investigacion
Deposited on: 22 Jul 2015 16:10
Last Modified: 22 Jul 2015 16:10
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