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Title: Core-shell ITO/ZnO/CdS/CdTe nanowire solar cells

Radial p-n junction nanowire (NW) solar cells with high densities of CdTe NWs coated with indium tin oxide (ITO)/ZnO/CdS triple shells were grown with excellent heterointerfaces. The optical reflectance of the devices was lower than for equivalent planar films by a factor of 100. The best efficiency for the NW solar cells was η = 2.49%, with current transport being dominated by recombination, and the conversion efficiencies being limited by a back contact barrier (ϕ{sub B} = 0.52 eV) and low shunt resistances (R{sub SH} < 500 Ω·cm{sup 2})
Authors:
; ; ;  [1] ; ; ;  [2]
  1. Stephenson Institute for Renewable Energy, University of Liverpool, Chadwick Building, Peach St., Liverpool L69 7ZF (United Kingdom)
  2. G. J. Russell Microscopy Facility, University of Durham, South Road, Durham DH1 3LE (United Kingdom)
Publication Date:
OSTI Identifier:
22283217
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CADMIUM SULFIDES; CADMIUM TELLURIDES; DIFFUSION BARRIERS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ENERGY CONVERSION; ENERGY EFFICIENCY; HETEROJUNCTIONS; INDIUM COMPOUNDS; P-N JUNCTIONS; SOLAR CELLS; THIN FILMS; TIN OXIDES; ZINC OXIDES