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Metallic Nanoparticle Network for Photocurrent Generation and Photodetection
Author(s) -
Xie Xian Ning,
Xie Yilin,
Gao Xingyu,
Sow Chorng Haur,
Wee Andrew Thye Shen
Publication year - 2009
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.200900249
Subject(s) - photodetection , photocurrent , materials science , passivation , photoelectric effect , optoelectronics , nanoparticle , semiconductor , metal , electron , photodetector , nanotechnology , physics , metallurgy , layer (electronics) , quantum mechanics
The generation and conduction of photoelectrons in ligated metallic Au NPs are demonstrated, and their key factors include tunneling of photoexcited electrons, the close packing of the NP network, and increased photoelectron‐to‐intrinsic electron ratio associated with ligand passivation. In view of their inherent characteristics, metallic NPs may provide a promising alternative to semiconductors in photocurrent and photodetection applications.