Natural Biowaste-Cocoon-Derived Granular Activated Carbon-Coated ZnO Nanorods: A Simple Route To Synthesizing a Core–Shell Structure and Its Highly Enhanced UV and Hydrogen Sensing Properties

2017 ◽  
Vol 9 (45) ◽  
pp. 39771-39780 ◽  
Author(s):  
Adhimoorthy Saravanan ◽  
Bohr-Ran Huang ◽  
Deepa Kathiravan ◽  
Adhimoorthy Prasannan
Keyword(s):  
Activated Carbon ◽  
Shell Structure ◽  
Zno Nanorods ◽  
Granular Activated Carbon ◽  
Core Shell ◽  
Simple Route ◽  
Sensing Properties ◽  
Hydrogen Sensing ◽  
Carbon Coated ◽  
Core Shell Structure

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.

Ultrathin carbon-coated Fe7S8 core/shell nanosheets towards superb Na storage in both ether and ester electrolyte systems

2019 ◽  
Vol 3 (10) ◽  
pp. 2845-2858 ◽  
Author(s):  
Zhao Xiong ◽  
Masayoshi Fuji ◽  
Jisheng Zhou
Keyword(s):  
Shell Structure ◽  
Oriented Attachment ◽  
Core Shell ◽  
Carbon Coated ◽  
Core Shell Structure ◽  
Storage Properties

Ultrathin Fe7S8@CNS nanosheets with a 2-D core/shell structure were synthesized based on oriented attachment growth and exhibited superior Na storage properties.

Novel core–shell structure of a lead-activated carbon (Pb@AC) for advanced lead–acid battery systems

2017 ◽  
Vol 28 (14) ◽  
pp. 10349-10356 ◽  
Author(s):  
K. Dhanabalan ◽  
T. Sadhasivam ◽  
Sang Chai Kim ◽  
Jin Jae Eun ◽  
Jinyoung Shim ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Shell Structure ◽  
Core Shell ◽  
Lead Acid Battery ◽  
Battery Systems ◽  
Core Shell Structure ◽  
Lead Acid
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