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Title: Hybrid ZnO nanowire/a-Si:H thin-film radial junction solar cells using nanoparticle front contacts

Hydrothermally synthesized disordered ZnO nanowires were conformally coated with a-Si:H thin-films to fabricate three dimensional hybrid nanowire/thin-film structures. The a-Si:H layer formed a radial junction p-i-n diode solar cell around the ZnO nanowire. The cylindrical hybrid solar cells enhanced light scattering throughout the UV-visible-NIR spectrum (300 nm–800 nm) resulting in a 22% increase in short-circuit current density compared to the reference planar p-i-n device. A fill factor of 69% and a total power conversion efficiency of 6.5% were achieved with the hybrid nanowire solar cells using a spin-on indium tin oxide nanoparticle suspension as the top contact.
Authors:
; ; ;  [1] ; ;  [2] ;  [3]
  1. Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1 (Canada)
  2. Research Center for Functional Materials and Nanomolecular Science, Jacobs University Bremen, Bremen 28759 (Germany)
  3. Electronic Materials and Devices Laboratory, Palo Alto Research Center, Palo Alto, California 93003 (United States)
Publication Date:
OSTI Identifier:
22482229
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 14; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FILL FACTORS; HYBRIDIZATION; HYDROTHERMAL SYNTHESIS; LIGHT SCATTERING; NANOWIRES; SEMICONDUCTOR JUNCTIONS; SOLAR CELLS; SPIN; THIN FILMS; TIN OXIDES; ZINC OXIDES