writer：Li Liu; Yizhou Jiang; Jianchun Jiang; Jiahang Zhou; Zhan Xu; Yunbo Li
keywords：PEDOT:PSS,graphene,silver nanowire,hydrogen sulfide
source：期刊
specific source：https://pubs.acs.org/doi/10.1021/acsaelm.1c00716
Issue time：2021年

A flexible and transparent

poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) film

was doped with a silver nanowire (AgNW)-integrated graphene (GR) layer

to improve the conductivity, which enhanced the sensitivity of the

chemiresistive sensor for detection of hydrogen sulfide gas (H2S).

The sheet resistance and transmittance of AgNWs/GR and

AgNWs/GR/PEDOT:PSS films remain stable during more than 25 days in a

room environment. The AgNWs/GR and AgNWs/GR/PEDOT:PSS films show great

flexibility that the sheet resistance remains stable after bending 1000

times. The AgNWs and PEDOT:PSS isolated by the GR film can be used

repeatedly in H2S detection, which shows that the AgNW layer-doping PEDOT:PSS film has great potential ability in H2S

detection. In addition, the bending test has little effect on the

response of the AgNWs/GR/PEDOT:PSS film and the transmittance of

AgNWs/GR/PEDOT:PSS change a little after reaction with H2S

due to addition of GR. This work presents a platform to inspire AgNW

layer-doping PEDOT:PSS materials for highly sensitive chemiresistive

sensor.