Construction of anatase@rutile core@shell TiO2 nanosheets with controllable shell layer thicknesses for enhanced ethanol sensing

2020 ◽  
Vol 325 ◽  
pp. 128815
Author(s):  
Jinniu Zhang ◽  
Chujun Chen ◽  
Hongbing Lu ◽  
Deying Leng ◽  
Gang Li ◽  
...  
Keyword(s):  
Core Shell ◽  
Shell Layer ◽  
Tio2 Nanosheets ◽  
Ethanol Sensing

Core-shell ZnO/SnO2 Nanorods: two-step Synthesis and Enhanced Ethanol Sensing Performance

2015 ◽  
Vol 11 (4) ◽  
pp. 405-412 ◽  
Author(s):  
Guang Sun ◽  
Saisai Zhang ◽  
Yanwei Li ◽  
Fengxiao Qi ◽  
Honglin Chen ◽  
...  
Keyword(s):  
Core Shell ◽  
Ethanol Sensing ◽  
Sensing Performance

Actinomorphic ZnO/SnO2 core–shell nanorods: Two-step synthesis and enhanced ethanol sensing propertied

2015 ◽  
Vol 160 ◽  
pp. 227-230 ◽  
Author(s):  
Bowen Zhang ◽  
Wuyou Fu ◽  
Huayang Li ◽  
Xinglin Fu ◽  
Ying Wang ◽  
...  
Keyword(s):  
Core Shell ◽  
Ethanol Sensing

scholarly journals Improved Photoresponse Characteristics of a ZnO-Based UV Photodetector by the Formation of an Amorphous SnO2 Shell Layer

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6124
Author(s):  
Junhyuk Yoo ◽  
Uijin Jung ◽  
Bomseumin Jung ◽  
Wenhu Shen ◽  
Jinsub Park
Keyword(s):  
Shell Structure ◽  
Rise Time ◽  
Zno Nanorods ◽  
Wide Bandgap ◽  
Core Shell ◽  
Shell Layer ◽  
Slow Response ◽  
Uv Photodetector ◽  
Zno Nanostructure ◽  
Core Shell Structure

Although ZnO nanostructure-based photodetectors feature a well-established system, they still present difficulties when being used in practical situations due to their slow response time. In this study, we report on how forming an amorphous SnO2 (a-SnO2) shell layer on ZnO nanorods (NRs) enhances the photoresponse speed of a ZnO-based UV photodetector (UV PD). Our suggested UV PD, consisting of a ZnO/a-SnO2 NRs core–shell structure, shows a rise time that is 26 times faster than a UV PD with bare ZnO NRs under 365 nm UV irradiation. In addition, the light responsivity of the ZnO/SnO2 NRs PD simultaneously increases by 3.1 times, which can be attributed to the passivation effects of the coated a-SnO2 shell layer. With a wide bandgap (~4.5 eV), the a-SnO2 shell layer can successfully suppress the oxygen-mediated process on the ZnO NRs surface, improving the photoresponse properties. Therefore, with a fast photoresponse speed and a low fabrication temperature, our as-synthesized, a-SnO2-coated ZnO core–shell structure qualifies as a candidate for ZnO-based PDs.

Synthesis of Crystalline/Amorphous Core/Shell MoO3 Composites through a Controlled Dehydration Route and Their Enhanced Ethanol Sensing Properties

2014 ◽  
Vol 14 (2) ◽  
pp. 569-575 ◽  
Author(s):  
Longqiang Wang ◽  
Peng Gao ◽  
Di Bao ◽  
Ying Wang ◽  
Yujin Chen ◽  
...  
Keyword(s):  
Core Shell ◽  
Sensing Properties ◽  
Ethanol Sensing

scholarly journals Aluminum doped core-shell ZnO/ZnS nanowires: Doping and shell layer induced modification on structural and photoluminescence properties

2013 ◽  
Vol 114 (13) ◽  
pp. 134307 ◽  
Author(s):  
Soumen Dhara ◽  
Kenji Imakita ◽  
P. K. Giri ◽  
Minoru Mizuhata ◽  
Minoru Fujii
Keyword(s):  
Core Shell ◽  
Shell Layer ◽  
Photoluminescence Properties
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