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Mirror‐Like Photoconductive Layer‐by‐Layer Thin Films of Te Nanowires: The Fusion of Semiconductor, Metal, and Insulator Properties
Author(s) -
Wang Y.,
Tang Z.,
Podsiadlo P.,
Elkasabi Y.,
Lahann J.,
Kotov N. A.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200501465
Subject(s) - materials science , photoconductivity , nanowire , cadmium telluride photovoltaics , semiconductor , thin film , layer (electronics) , optoelectronics , layer by layer , nanoparticle , nanotechnology , doping , metal , metallurgy
Te nanowires made from stabilizer‐ depleted CdTe nanoparticles are assembled in thin films following a layer‐by‐layer assembly protocol. The thin film has a distinctively metallic mirror‐like appearance and displays a strong photoconductance effect characteristic of narrow‐bandgap semiconductors. In situ reduction of gold results in the formation of Au nanoparticles adhering to Te nanowires, which leads to the disappearance of photoconductivity of the Te thin film.