From 630b4cac4e327397f6aef3bb508fa247af0447d0 Mon Sep 17 00:00:00 2001 From: CYZL0036 Date: Fri, 16 Sep 2022 08:46:26 +0800 Subject: [PATCH] Update README.md --- README.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index aa423f7..f43856e 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,4 @@ -# Novel-organometal-halide-perovskites-for-roomm-teperature-NO2-gas-sensor - +# 基于新型金属卤化物钙钛矿的常温NO2气体传感器 +**作者：李伟伟** +**Abstract** +Organometal halide perovskites (OHPs) have been extensively applied as promising semiconductor materials with tunable bandgap for optoelectronic devices recently. Owing to attractive characteristics of high carrier mobility and surface-volume ratio, they have potential to be an ideal candidate for next-generation gas sensors. Hence, we report the CH3NH3PbI3-based gas sensors fabricated using a one-step spin-coating method for nitrogen dioxide (NO2) detection. The prepared sensor demonstrates stable performances with a sensing response of 26.2% and response time of 70s to 10 ppm NO2 at room temperature. It exhibits obvious response to NO2 at a low concentration of 2 ppm. The possible mechanism for gas absorption/desorption on perovskite films is also investigated. Our findings highlight the promising potential of the CH3NH3PbI3-based gas sensors, OHPs may be a novel active material for room temperature gas sensing applications.