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

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...

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Veröffentlicht in:Applied physics letters 2014-02, Vol.104 (5)
Hauptverfasser: Williams, B. L., Taylor, A. A., Mendis, B. G., Phillips, L., Bowen, L., Major, J. D., Durose, K.
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Cadmium sulfide
CADMIUM SULFIDES
CADMIUM TELLURIDES
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIFFUSION BARRIERS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ENERGY CONVERSION
ENERGY EFFICIENCY
HETEROJUNCTIONS
INDIUM COMPOUNDS
Indium tin oxides
Nanowires
P-N JUNCTIONS
Photovoltaic cells
Reflectance
SOLAR CELLS
THIN FILMS
TIN OXIDES
Zinc oxide
ZINC OXIDES
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Zusammenfassung: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 (ϕB = 0.52 eV) and low shunt resistances (RSH 
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4863826