skip to main content

DOE PAGESDOE PAGES

Title: Nanowire CdS-CdTe solar cells with molybdenum oxide as contact

Using a 10 nm thick molybdenum oxide (MoO 3-x) layer as a transparent and low barrier contact to p-CdTe, we demonstrate nanowire CdS-CdTe solar cells with a power conversion efficiency of 11% under front side illumination. Annealing the as-deposited MoO 3 film in N2 resulted in a reduction of the cell’s series resistance, from 9.97 Ω/cm 2 to 7.69 Ω/cm 2, and increase in efficiency from 9.9% to 11%. Under illumination from the back, the MoO 3-x/Au side, the nanowire solar cells yielded Jsc of 21 mA/cm 2 and efficiency of 8.67%. Our results demonstrate use of a thin layer transition metal oxide as a potential way for a transparent back contact to nanowire CdS-CdTe solar cells. As a result, this work has implications toward enabling a novel superstrate structure nanowire CdS-CdTe solar cell on Al foil substrate by a low cost roll-to roll fabrication process.
Authors:
 [1] ;  [1]
  1. Univ. of Kentucky, Lexington, KY (United States)
Publication Date:
Grant/Contract Number:
FG36-05GO85013
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Univ. of Kentucky, Lexington, KY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 77 NANOSCIENCE AND NANOTECHNOLOGY; electrical and electronic engineering; electronic properties and materials; nanowires; solar cells
OSTI Identifier:
1242271

Dang, Hongmei, and Singh, Vijay P. Nanowire CdS-CdTe solar cells with molybdenum oxide as contact. United States: N. p., Web. doi:10.1038/srep14859.
Dang, Hongmei, & Singh, Vijay P. Nanowire CdS-CdTe solar cells with molybdenum oxide as contact. United States. doi:10.1038/srep14859.
Dang, Hongmei, and Singh, Vijay P. 2015. "Nanowire CdS-CdTe solar cells with molybdenum oxide as contact". United States. doi:10.1038/srep14859. https://www.osti.gov/servlets/purl/1242271.
@article{osti_1242271,
title = {Nanowire CdS-CdTe solar cells with molybdenum oxide as contact},
author = {Dang, Hongmei and Singh, Vijay P.},
abstractNote = {Using a 10 nm thick molybdenum oxide (MoO3-x) layer as a transparent and low barrier contact to p-CdTe, we demonstrate nanowire CdS-CdTe solar cells with a power conversion efficiency of 11% under front side illumination. Annealing the as-deposited MoO3 film in N2 resulted in a reduction of the cell’s series resistance, from 9.97 Ω/cm2 to 7.69 Ω/cm2, and increase in efficiency from 9.9% to 11%. Under illumination from the back, the MoO3-x/Au side, the nanowire solar cells yielded Jsc of 21 mA/cm2 and efficiency of 8.67%. Our results demonstrate use of a thin layer transition metal oxide as a potential way for a transparent back contact to nanowire CdS-CdTe solar cells. As a result, this work has implications toward enabling a novel superstrate structure nanowire CdS-CdTe solar cell on Al foil substrate by a low cost roll-to roll fabrication process.},
doi = {10.1038/srep14859},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {2015},
month = {10}
}