Room temperature hydrogen sensing performances of multiple networked Ga N nanowire sensors codecorated with Au and Pt nanoparticles

查看全文 作　　者：PARK [1]Sunghoon;KIM [1]Soohyun;PARK [1]Suyoung;LEE [2]Sangmin;LEE [1]Chongmu

机构地区：[1]Department of Materials Science and Engineering, Inha University, 253 Yonghyun-dong Nam-gu, Incheon, 402-751, Korea;[2]Department of Electronic Engineering, Inha University, 253 Yonghyun-dong Nam-gu, Incheon, 402-751, Korea

出　　处：《Journal of Central South University》索引2015年第22卷第5期,共5页

基　　金：Project(2010-0020163)supported by Basic Science Research Program through the National Research Foundation(NRF)funded by the Ministry of Education of Korea 摘　　要：The sensing performances of multiple networked Ga N nanowire(NW) sensor codecorated with Au and Pt nanoparticles were examined. The pristine Ga N nanowires show responses of approximately 108%-173% to 0.05%-0.25% H2 at room temperature. On the other hand, the Ga N nanowires decorated with Au and those decorated with Pt lead to 1.1-1.3 and 1.2-1.6 times,respectively, stronger responses to 0.05%-0.25% H2. In contrast, the Au Pt-codecorated Ga N nanowires show 1.3-2.0 times stronger responses to 0.05%-0.25% H2. In other words, the Ga N nanorods codecorated with Au and Pt nanoparticles show much stronger response to H2 gas than the Au or Pt monometal-decorated counterpart. The underlying mechanism for the enhanced response of the Au Pt-codecorated Ga N nanowire was discussed. 关键词：Ga N nanowires metal catalyst bimetallic system gas sensor codecoration

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Room temperature hydrogen sensing performances of multiple networked Ga N nanowire sensors codecorated with Au and Pt nanoparticles

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