Room-temperature electrically pumped near-infrared random lasing from high-quality m-plane ZnO-based metal-insulator-semiconductor devices

Chen, Chao; Wang, Ti; Wu, Hao; He, Zheng; Wang, Jianbo; Xu, Yaxing; Liu, Chang

doi:10.1186/s11671-015-0816-4

Cited by 16 publications

(2 citation statements)

References 27 publications

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“…4(c)) was fitted to two peaks at 530.2 and 531.3 eV (±0.1 eV). The peak located at 529.7 eV can be attributed to Zn-O bonds in a hexagonal array (wurtzite structure) [23], while the peak located at 531.3 eV can be attributed to oxygen deficient regions caused by oxygen vacancies in ZnO [24] [25] or loosely bound adsorbed oxygen species (H2O, O2 and oxygenated carbon impurities) [26]. These results are in good agreement with our Raman and XRD analyses.…”

Section: A Zno Materials Characterizationsupporting

confidence: 88%

ZnO Nanowire-Based Field Emission Devices Through a Microelectronic Compatible Route

Dantas

Criado²,

Zúñiga³

et al. 2020

JICS

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Nanostructured zinc oxide (ZnO) has attracted considerable interest for a wide range of applications, including its use as an active layer in gas sensor devices and as promising emitters for field emission devices. Although it is interesting for FE purposes, the synthesis of this material can be complex and non-compatible with microelectronic processes. To overcome this issue, this paper explores ZnO nanowires growth through thermal oxidation of zinc thin films. We applied this IC-compatible procedure to fabricate field emission cathodes. Analyses of Raman spectroscopy, X‑ray photoelectron spectrometry, X‑ray diffractometry and scanning electron microscopy confirmed that the processes applied were well succeeded in obtaining nanoscale structures of ZnO with dimensions up to 4 micrometers in length and 30‑100 nanometers in diameter. Electrical characterization showed an intense electron field emission on the active area of the device, with a low turn-on electric field (2.4 volts/micrometer). An innovative system based on image processing allowed electrical current mapping throughout the active area of the devices, providing information about the uniformity of the emitted current. These results demonstrate that the low-complex fabrication procedures adopted as well as the ZnO nanomaterial itself are suitable for FE devices development.

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Section: A Zno Materials Characterizationsupporting

confidence: 88%

ZnO Nanowire-Based Field Emission Devices Through a Microelectronic Compatible Route

Dantas

Criado²,

Zúñiga³

et al. 2020

JICS

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“…4 b). After deconvolution, two symmetric peaks appeared at 529.81 and 531.57 eV, corresponding to the Zn–O–Zn and surface –OH species 35 , 48 , respectively. The O 1 s XPS spectra of WO 3 were found at 529.89, 531.94 and 533.84 eV, belonging to the lattice oxygen, oxygen-absorbing H 2 O/adsorb oxides and surface –OH groups, respectively 49 , 50 .…”

Section: Resultsmentioning

confidence: 99%

Highly efficient ZnO/WO3 nanocomposites towards photocatalytic gold recovery from industrial cyanide-based gold plating wastewater

Sangkhanak,

Kunthakudee,

Hunsom

et al. 2023

Sci Rep

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Discharging the gold-contained wastewater is an economic loss. In this work, a set of ZnO/WO3 was facile synthesized by hydrothermal method in order to recover gold from the industrial cyanide-based gold plating wastewater by photocatalytic process. Effect of ZnO contents coupled with WO3 was first explored. Then, effects of operating condition including initial pH of wastewater, type of hole scavenger, concentration of the best hole scavenger and photocatalyst dose were explored. A series of experimental results demonstrated that the ZnO/WO3 nanocomposite with 5 wt% ZnO (Z5.0/WO3) depicted the highest photocatalytic activity for gold recovery due to the synergetic effect of oxygen vacancies, a well-constructed ZnO/WO3 heterostructure and an appropriate band position alignment with respect to the redox potentials of [Au(CN)2]− and hole scavengers. Via this ZnO/WO3 nanocomposite, approximately 99.5% of gold ions was recovered within 5 h using light intensity of 3.57 mW/cm2, catalyst dose of 2.0 g/L, ethanol concentration of 20 vol% and initial pH of wastewater of 11.2. In addition, high stability and reusability were observed with the best nanocomposite even at the 5th reuse. This work provides the guidance and pave the way for designing the ZnO/WO3 nanocomposite for precious metal recovery from a real industrial wastewater.

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Interfacial oxygen vacancy modulated ZIF-8-derived ZnO/CuS for the photocatalytic degradation of antibiotic and organic pollutants: DFT calculation and degradation pathways

Mariappan,

Mannu,

Thiruppathiraja

et al. 2023

Chemical Engineering Journal

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Room-temperature electrically pumped near-infrared random lasing from high-quality m-plane ZnO-based metal-insulator-semiconductor devices

Cited by 16 publications

References 27 publications

ZnO Nanowire-Based Field Emission Devices Through a Microelectronic Compatible Route

ZnO Nanowire-Based Field Emission Devices Through a Microelectronic Compatible Route

Highly efficient ZnO/WO3 nanocomposites towards photocatalytic gold recovery from industrial cyanide-based gold plating wastewater

Interfacial oxygen vacancy modulated ZIF-8-derived ZnO/CuS for the photocatalytic degradation of antibiotic and organic pollutants: DFT calculation and degradation pathways

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