State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China(UESTC) Chengdu 610054 China;
Key Laboratory of Information Materials of Sichuan Province School of Elctrical and Information Engineering Souuhwest University for Nationalities Chengdu 610041 China;
adsorption behaviors; electron affinity; UV-activated gas sensor; ZnO nanocrystals;