Growth of ZnGa2O4 nanowires on a ZnO buffer layer by carbothermal reduction of Ga2O3 powder

Chang, Meng-Pang; Chiang, Meng Hsueh; Lin, Wen‐Tai; Lee, Ching-Ting

doi:10.1016/j.matlet.2011.02.041

Cited by 4 publications

(1 citation statement)

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“…ZnGa 2 O 4 nanoparticles and thin films have typically been grown using a large number of methods, including pulsed-laser deposition, magnetron sputtering, metal–organic chemical vapor deposition, thermal synthesis, sol–gel process, and hydrothermal synthesis [ 3 , 4 , 5 , 6 , 7 , 8 ]. Among them, hydrothermal synthesis offers several advantages, as a low-cost, low-temperature, and surface-scalable method.…”

Section: Introductionmentioning

confidence: 99%

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

Hector,

Appert,

Roussel

et al. 2024

Nanomaterials

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The development of innovative heterostructures made of ZnO nanowires is of great interest for enhancing the performances of many devices in the fields of optoelectronics, photovoltaics, and energy harvesting. We report an original fabrication process to form ZnO/ZnGa2O4 core–shell nanowire heterostructures in the framework of the wet chemistry techniques. The process involves the partial chemical conversion of ZnO nanowires grown via chemical bath deposition into ZnO/ZnGa2O4 core–shell nanowire heterostructures with a high interface quality following their immersion in an aqueous solution containing gallium nitrate heated at a low temperature. The double-step process describing the partial chemical conversion relies on successive dissolution and reaction mechanisms. The present finding offers the possibility to fabricate ZnO/ZnGa2O4 core–shell nanowire heterostructures at low temperatures and over a wide variety of substrates with a large surface area, which is attractive for nanostructured solar cells, deep-UV photodetectors, and piezoelectric devices.

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Section: Introductionmentioning

confidence: 99%

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

Hector,

Appert,

Roussel

et al. 2024

Nanomaterials

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An Ultrahigh Responsivity (9.7 mA W⁻¹) Self‐Powered Solar‐Blind Photodetector Based on Individual ZnO–Ga₂O₃ Heterostructures

Zhao

Wang

Chen

et al. 2017

Adv Funct Materials

701

268

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Highly crystallized ZnO–Ga2O3 core–shell heterostructure microwire is synthesized by a simple one‐step chemical vapor deposition method, and constructed into a self‐powered solar‐blind (200–280 nm) photodetector with a sharp cutoff wavelength at 266 nm. The device shows an ultrahigh responsivity (9.7 mA W−1) at 251 nm with a high UV/visible rejection ratio (R251 nm/R400 nm) of 6.9 × 102 under zero bias. The self‐powered device has a fast response speed with rise time shorter than 100 µs and decay time of 900 µs, respectively. The ultrahigh responsivity, high UV/visible rejection ratio, and fast response speed make it highly suitable in practical self‐powered solar‐blind detection. Additinoally, this microstructure heterojunction design method would provide a new approach to realize the high‐performance self‐powered photodetectors.

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Growth and characterization of Sn-doped β-Ga2O3 thin films by chemical vapor deposition using solid powder precursors toward solar-blind ultraviolet photodetection

Fan

et al. 2020

Applied Surface Science

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Growth of ZnGa2O4 nanowires on a ZnO buffer layer by carbothermal reduction of Ga2O3 powder

Cited by 4 publications

References 20 publications

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

An Ultrahigh Responsivity (9.7 mA W⁻¹) Self‐Powered Solar‐Blind Photodetector Based on Individual ZnO–Ga₂O₃ Heterostructures

Growth and characterization of Sn-doped β-Ga2O3 thin films by chemical vapor deposition using solid powder precursors toward solar-blind ultraviolet photodetection

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Growth of ZnGa2O4 nanowires on a ZnO buffer layer by carbothermal reduction of Ga2O3 powder

Cited by 4 publications

References 20 publications

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

Chemical Bath Deposition of ZnO/ZnGa2O4 Core–Shell Nanowire Heterostructures Using Partial Chemical Conversion

An Ultrahigh Responsivity (9.7 mA W−1) Self‐Powered Solar‐Blind Photodetector Based on Individual ZnO–Ga2O3 Heterostructures

Growth and characterization of Sn-doped β-Ga2O3 thin films by chemical vapor deposition using solid powder precursors toward solar-blind ultraviolet photodetection

Contact Info

Product

Resources

About

An Ultrahigh Responsivity (9.7 mA W⁻¹) Self‐Powered Solar‐Blind Photodetector Based on Individual ZnO–Ga₂O₃ Heterostructures