A simple preparation of ultrathin AuNWs-PEDOT:PSS bilayer Janus film for high performance chemiresistive ammonia gas sensor
writer：jianchun Jiang,Qingmeng Pi,Jiahang Zhou,Yixuan Du,Yunbo Li*
keywords：ultrathin AuNWs,PEDOT:PSS,Janus film,ammonia,sensor
source：期刊
specific source：https://linkinghub.elsevier.com/retrieve/pii/S0925400523010857
Issue time：2023年
Ammonia is increasingly deemed a significant, green sustainable fuel
which requires a large number of detection devices. In this study,
ultrathin AuNWs/PEDOT:PSS Janus films had been prepared with ultrathin
AuNWs film treated with H2S which could integrate with PEDOT:PSS film
closely. The resulting transparent and flexible Janus film sensor showed
the good response and selectivity performance to ammonia gas. Moreover,
the sensitivity of Janus film devices to ammonia was greatly improved
and the conductivity of the Janus films was kept well with increasing
thermal annealing temperature. The limit detection for NH3 was 500 ppb
concentration and the improvement mechanism of the sensing performance
was attributed to the increased surface area of conductive polymer. This
method provides a universal platform to integrate different materials
into Janus films and prepare next-generation flexible detection.
sensors.