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Title: Heterojunction solar cell with 2% efficiency based on a Cu{sub 2}O substrate

Abstract

We report on the fabrication of heterojunction solar cells made by deposition of transparent conducting oxide (TCO) films on Cu{sub 2}O substrates. The TCO films have been grown by ion beam sputtering on good quality Cu{sub 2}O sheets prepared by oxidizing copper at a high temperature. The best solar cell has reached an open-circuit voltage of 0.595 V, a short-circuit current density of 6.78 mA/cm{sup 2}, a fill factor of 50%, and a conversion efficiency of 2% under simulated AM1.5G illumination, which is the highest efficiency value reported for this kind of heterojunction devices. These devices represent a good starting point for the development of very low cost solar cells.

Authors:
; ; ; ;  [1]
  1. Casaccia Research Center, ENEA, via Anguillarese 301, 00060, Rome (Italy)
Publication Date:
OSTI Identifier:
20779132
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 88; Journal Issue: 16; Other Information: DOI: 10.1063/1.2194315; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER; COPPER OXIDES; CURRENT DENSITY; DEPOSITION; EFFICIENCY; ELECTRIC POTENTIAL; ELECTRICAL FAULTS; FABRICATION; FILL FACTORS; FILMS; HETEROJUNCTIONS; INDIUM COMPOUNDS; ION BEAMS; SOLAR CELLS; SPUTTERING; SUBSTRATES; TIN COMPOUNDS

Citation Formats

Mittiga, Alberto, Salza, Enrico, Sarto, Francesca, Tucci, Mario, and Vasanthi, Rajaraman. Heterojunction solar cell with 2% efficiency based on a Cu{sub 2}O substrate. United States: N. p., 2006. Web. doi:10.1063/1.2194315.
Mittiga, Alberto, Salza, Enrico, Sarto, Francesca, Tucci, Mario, & Vasanthi, Rajaraman. Heterojunction solar cell with 2% efficiency based on a Cu{sub 2}O substrate. United States. doi:10.1063/1.2194315.
Mittiga, Alberto, Salza, Enrico, Sarto, Francesca, Tucci, Mario, and Vasanthi, Rajaraman. Mon . "Heterojunction solar cell with 2% efficiency based on a Cu{sub 2}O substrate". United States. doi:10.1063/1.2194315.
@article{osti_20779132,
title = {Heterojunction solar cell with 2% efficiency based on a Cu{sub 2}O substrate},
author = {Mittiga, Alberto and Salza, Enrico and Sarto, Francesca and Tucci, Mario and Vasanthi, Rajaraman},
abstractNote = {We report on the fabrication of heterojunction solar cells made by deposition of transparent conducting oxide (TCO) films on Cu{sub 2}O substrates. The TCO films have been grown by ion beam sputtering on good quality Cu{sub 2}O sheets prepared by oxidizing copper at a high temperature. The best solar cell has reached an open-circuit voltage of 0.595 V, a short-circuit current density of 6.78 mA/cm{sup 2}, a fill factor of 50%, and a conversion efficiency of 2% under simulated AM1.5G illumination, which is the highest efficiency value reported for this kind of heterojunction devices. These devices represent a good starting point for the development of very low cost solar cells.},
doi = {10.1063/1.2194315},
journal = {Applied Physics Letters},
number = 16,
volume = 88,
place = {United States},
year = {Mon Apr 17 00:00:00 EDT 2006},
month = {Mon Apr 17 00:00:00 EDT 2006}
}