β-Ga_(2)O_(3) nanowires and thin films for metal oxide semiconductor gas sensors:Sensing mechanisms and performance enhancement strategies

作     者：Adeel Afzal 

作者机构：Dipartimento di ChimicaUniversita degli Studi di Bari“Aldo Moro”Via Orabona 470126BariItaly Department of ChemistryCollege of ScienceUniversity of Hafr Al BatinPO Box 1803Hafr Al Batin39524Saudi Arabia 

出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)

年 卷 期：2019年第5卷第4期

页      面：542-557页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：β-Ga_(2)O_(3)nanowires Gas sensors Nanomaterials Semiconductors Sensing mechanisms Thin films 

摘      要：The reliable,selective,and fast detection of the inorganic and organic gases in indoor and outdoor air and industrial processes is a huge challenge for environmental sustainability,healthier life,and disease control and *** oxides have been frequently explored as highly sensitive receptor elements in the electronic gas sensors since the *** oxide(Ga_(2)O_(3)),often recognized as one of the widest-bandgap semiconductors,has shown tremendous potential as the inorganic gas receptor because of its extraordinary chemical and thermal stability,and excellent electronic *** article presents a comprehensive reference on the electrical properties,historical developments,detection mechanisms,and gas sensing performance of Ga_(2)O_(3) nanowires and composite *** particular,the relationships between composition,nanostructure,and gas sensing properties of galliumcontaining oxidic nanomaterials such as β-Ga_(2)O_(3) nanowires,surface-modified Ga_(2)O_(3),metal-doped Ga_(2)O_(3) or Ga-doped metal oxides,and Ga_(2)O_(3)/metal oxide composite heterostructures are *** applications of Ga_(2)O_(3) gas sensors are discussed with an emphasis on their practical limitations such as high-temperature operation,power consumption,and miniaturization ***,future research directions and potential developments are suggested.