Studies of changes in electrical resistance of zinc oxide nanostructures under the influence of variable gaseous environments

Bulletin of the Polish Academy of Sciences. Technical Sciences

E. MaciakDepartment of Optoelectronics, Silesian University of Technology, 2 Akademicka St., 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  T. PustelnyDepartment of Optoelectronics, Silesian University of Technology, 2 Akademicka St., 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  M. ProcekCorresponding authorDepartment of Optoelectronics, Silesian University of Technology, 2 Akademicka St., 44-100 Gliwice, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  A. StolarczykDepartment of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 9 Strzody St., 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar² 

[1] Department of Optoelectronics, Silesian University of Technology, 2 Akademicka St., 44-100 Gliwice, Poland;Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 9 Strzody St., 44-100 Gliwice, Poland

关键词: Keywords : zinc oxide (ZnO);    flower-like nanostructures;    gas sensor;    wide gap semiconductors;    electric properties of semiconductors;   

DOI  :  10.2478/bpasts-2014-0069

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

The paper deals with the investigations concerning the influence of the changing gas environment on electrical resistance of zinc oxide (ZnO) nanostructures. The investigated structures are wide-gap semiconductors with the morphology of ZnO flower-shaped agglomerates of nanostructures. The resistance changes of these nanostructures were tested under the influence of various gases such as nitrogen dioxide (NO2), hydrogen (H2), ammonia (NH3) and also of humidity changes of carrier gases. To clarify the mechanisms of physicochemical processes in ZnO nanostructures during their interaction with gaseous environments, investigations were performed in two different carrier gases, viz. in synthetic air and in nitrogen. The study was carried out at a structure temperature of 200◦C.

【 授权许可】

Unknown