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Title: High efficiency silicon nanohole/organic heterojunction hybrid solar cell

High efficiency hybrid solar cells are fabricated based on silicon with a nanohole (SiNH) structure and poly (3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). The SiNH structure is fabricated using electroless chemical etching with silver catalyst, and the heterojunction is formed by spin coating of PEDOT on the SiNH. The hybrid cells are optimized by varying the hole depth, and a maximum power conversion efficiency of 8.3% is achieved with a hole depth of 1 μm. The SiNH hybrid solar cell exhibits a strong antireflection and light trapping property attributed to the sub-wavelength dimension of the SiNH structure.
Authors:
 [1] ;  [2] ; ;  [3] ; ; ;  [1] ;  [4]
  1. Novitas, Nanoelectronics Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)
  2. (Agency for Science, Technology and Research), 71 Nanyang Drive, Singapore 638075 (Singapore)
  3. Singapore Institute of Manufacturing Technology, A-STAR (Agency for Science, Technology and Research), 71 Nanyang Drive, Singapore 638075 (Singapore)
  4. South University of Science and Technology of China, Shenzhen (China)
Publication Date:
OSTI Identifier:
22283305
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:
77 NANOSCIENCE AND NANOTECHNOLOGY; CATALYSTS; ENERGY CONVERSION; ENERGY EFFICIENCY; HETEROJUNCTIONS; NANOSTRUCTURES; POLYSTYRENE; SILICON; SILVER; SOLAR CELLS; SPIN-ON COATING; TRAPPING