Three-terminal heterojunction bipolar transistor solar cell for high-efficiency photovoltaic conversion

Martí Vega, Antonio and Luque López, Antonio (2015). Three-terminal heterojunction bipolar transistor solar cell for high-efficiency photovoltaic conversion. "Nature Communications", v. 6 (n. 6902); pp. 1-6. ISSN 2041-1723. https://doi.org/10.1038/ncomms7902.

Description

Title: Three-terminal heterojunction bipolar transistor solar cell for high-efficiency photovoltaic conversion
Author/s:
  • Martí Vega, Antonio
  • Luque López, Antonio
Item Type: Article
Título de Revista/Publicación: Nature Communications
Date: 2015
ISSN: 2041-1723
Volume: 6
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Here we propose, for the first time, a solar cell characterized by a semiconductor transistor structure (n/p/n or p/n/p) where the base-emitter junction is made of a high-bandgap semiconductor and the collector is made of a low-bandgap semiconductor. We calculate its detailed-balance efficiency limit and prove that it is the same one than that of a double-junction solar cell. The practical importance of this result relies on the simplicity of the structure that reduces the number of layers that are required to match the limiting efficiency of dual-junction solar cells without using tunnel junctions. The device naturally emerges as a three-terminal solar cell and can also be used as building block of multijunction solar cells with an increased number of junctions.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2013-49429-EXPUnspecifiedUnspecifiedSuper célula solar de tres terminales y heterounion que parece un transistor pero que no lo es

More information

Item ID: 41088
DC Identifier: http://oa.upm.es/41088/
OAI Identifier: oai:oa.upm.es:41088
DOI: 10.1038/ncomms7902
Official URL: http://www.nature.com/ncomms/2015/150422/ncomms7902/full/ncomms7902.html
Deposited by: Memoria Investigacion
Deposited on: 20 Jun 2016 17:53
Last Modified: 20 Jun 2016 17:53
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