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Tunable Hybrid Photodetectors with Superhigh Responsivity
Author(s) -
Liu Song,
Ye Jianfeng,
Cao Yang,
Shen Qian,
Liu Zhongfan,
Qi Limin,
Guo Xuefeng
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200900576
Subject(s) - responsivity , photodetector , materials science , surface modification , adsorption , nanoparticle , nanotechnology , desorption , optoelectronics , carbon nanotube , chemical engineering , chemistry , organic chemistry , engineering
A responsivity as high as five orders of magnitude is achieved for hybrid photodetectors fabricated by the surface functionalization of single‐walled carbon nanotubes with ZnO nanoparticles as antennas for UV detection. Due to the photoinduced adsorption and desorption of oxygen from the nanoparticle surface (see picture), the devices show photoswitching effects with good reversibility and reproducibility.