4.8 Article

Enhanced Light Absorption of Silicon Nanotube Arrays for Organic/Inorganic Hybrid Solar Cells

Journal

ADVANCED MATERIALS
Volume 26, Issue 21, Pages 3445-3450

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201305394

Keywords

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Funding

  1. Basic Science Research program through the National Research Foundation of Korea - Ministry of Science, ICT & Future Planning (NRF, CLEA, NCRC) [R15-2008-006-03002-0]
  2. Pioneer Research Center Program (NRF) [2013M3C1A3063046]
  3. MEST [2011-0029414]
  4. National Research Foundation of Korea [2011-0029414, 2013K1A4A3055268] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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By combining nanoimprint lithography technique and a two-step lift-off process, a Si nanotube array is fabricated and applied as a light absorber for n-Si/PEDOT:PSS hybrid solar cells. The light is effectively trapped within the nanotubes and the device reveals a J(SC) of 29.9 mA.cm(-2) and a power conversion efficiency of 10.03%, which is an enhancement of 13.4% compared to the cell having the best-known Si architecture of nanocones as a light absorber to date.

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