Polyaniline/polystyrene single-nanowire devices for highly selective optical detection of gas mixtures.
By using spectral analysis in the visible/near-infrared region, we demonstrate a single waveguiding polyaniline/polystyrene nanowire for highly selective detection of gas mixtures with a NH(3) detection limit on parts-per-million level and relative humidity sensing ranging from 37% to 84%. The compact and flexible sensing scheme shown here may be attractive for highly selective optical detection in complex chemical or biological environments with a single nanowire.
Gu
Fuxing
F
Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China.
Yin
Xuefeng
X
Yu
Huakang
H
Wang
Pan
P
Tong
Limin
L
D000814:Aniline Compounds / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods; D004784:Environmental Monitoring / Q000295:instrumentation; D005740:Gases; D007259:Infrared Rays; D008670:Metals / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires / Q000032:analysis / Q000737:chemistry; D055095:Optics and Photonics; D010087:Oxides / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry*; D013696:Temperature; D014466:Ultraviolet Rays
D000814:Aniline Compounds; D005740:Gases; D008670:Metals; D010087:Oxides; D011137:Polystyrenes; C416807:polyaniline