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Electrochemical Infilling of CuInSe 2 within TiO 2 Nanotube Layers and Subsequent Photoelectrochemical Studies
Author(s) -
Das Sayantan,
Sopha Hanna,
Krbal Milos,
Zazpe Raul,
Podzemna Veronika,
Prikryl Jan,
Macak Jan M.
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201600763
Subject(s) - heterojunction , materials science , transmission electron microscopy , visible spectrum , photoelectrochemistry , nanotube , scanning electron microscope , nanotechnology , diffraction , optoelectronics , electrochemistry , anode , photoelectrochemical cell , photocatalysis , chemical engineering , optics , electrode , chemistry , carbon nanotube , physics , composite material , catalysis , biochemistry , engineering , electrolyte
Anodic self‐organized TiO 2 nanotube layers (with different aspect ratios) were electrochemically infilled with CuInSe 2 nanocrystals with the aim to prepare heterostructures with a photoelectrochemical response in the visible light. The resulting heterostructure assembly was confirmed by field‐emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X‐ray diffraction (XRD). High incident photon‐to‐electron conversion efficiency values exceeding 55% were obtained in the visible‐light region. The resulting heterostructures show promise as a candidate for solid‐state solar cells.