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Sn‐Coupled p‐Si Nanowire Arrays for Solar Formate Production from CO 2
Author(s) -
Choi Sung Kyu,
Kang Unseock,
Lee Seunghoon,
Ham Dong Jin,
Ji Sang Min,
Park Hyunwoong
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201301614
Subject(s) - materials science , nanowire , formate , wafer , heterojunction , solar cell , optoelectronics , energy conversion efficiency , planar , faraday efficiency , nanotechnology , electrode , catalysis , electrochemistry , biochemistry , chemistry , computer graphics (images) , computer science
Vertically aligned, free‐standing p‐Si nanowire arrays of varying lengths are grown on p‐Si wafers and coupled with Sn nanoparticles for solar CO 2 conversion. These heterojunction wire/Sn arrays increase the production of formate dramatically, by more than 10 and 5 times compared to planar p‐Si and wire arrays, respectively, with Faradaic efficiencies of ≈40% in a single cell and 88% in a H‐type cell.