Journal ArticleDOI
Investigation on UV photodetector behavior of RF-sputtered ZnO by impedance spectroscopy
TLDR
In this paper, an Ag/ZnO/Ag thin films representing metal/semiconductor/metal ultraviolet (UV) photodetectors were successfully prepared by RF magnetron sputtering.Abstract:
Ag/ZnO/Ag thin films representing metal/semiconductor/metal ultraviolet (UV) photodetectors were successfully prepared by RF magnetron sputtering. A UV light emitting diode was used as an illuminating source at 365 nm. The current–voltage characteristics of the device under UV illumination showed an enhancement in the forward current. Device modeling was carried out using impedance spectroscopy. The resistance of the device decreased as the light was switched from dark to UV. Moreover, the device showed further decrease in resistance at a bias voltage of up to 2 V.read more
Citations
More filters
Journal Article
A comprehensive review of one-dimensional metal-oxide nanostructure photodetectors
TL;DR: One-dimensional (1D) metal-oxide nanostructures are ideal systems for exploring a large number of novel phenomena at the nanoscale and investigating size and dimensionality dependence of nanostructure properties for potential applications as discussed by the authors.
Journal ArticleDOI
High-performance metal–semiconductor–metal UV photodetector based on spray deposited ZnO thin films
S.I. Inamdar,K.Y. Rajpure +1 more
TL;DR: In this paper, ZnO-based metal-semiconductor-metal (MSM) ultraviolet photodetectors at different substrate temperatures were fabricated on glass substrates by economical chemical spray pyrolysis technique and its UV photoresponsivity was measured at room temperature.
Journal ArticleDOI
Synthesis of highly selective and sensitive Cu-doped ZnO thin film sensor for detection of H2S gas
TL;DR: In this article, the effect of Cu doping on the structural, morphology, compositional, microstructural, optical, electrical and H2S gas sensing properties of the films were investigated by using XRD, FESEM, EDS, FTIR, XPS, Raman, HRTEM, and UV-vis techniques.
Journal ArticleDOI
UV photodetector behavior of 2D ZnO plates prepared by electrochemical deposition
TL;DR: In this article, a 2D hexagonal structure of ZnO was successfully prepared using electrochemical deposition (ECD) method on a quartz substrate pre-coated with indium-doped zinc oxide layer.
Journal ArticleDOI
Fabrication and Characterization of Undoped and Cobalt-doped ZnO Based UV Photodetector Prepared by RF-sputtering
TL;DR: In this paper, undoped and 1 at.% Co-doped ZnO nanostructure based UV photodetectors were successfully fabricated by RF-magnetron sputtering technique with comb like Pt electrodes.
References
More filters
Journal ArticleDOI
ZnO Nanowire UV Photodetectors with High Internal Gain
Cesare Soci,Arthur Zhang,Bin Xiang,Shadi A. Dayeh,David P. R. Aplin,Jeongwon Park,Xinyu Bao,Yu-Hwa Lo,Deli Wang +8 more
TL;DR: Despite the slow relaxation time, the extremely high internal gain of ZnO NW photodetectors results in gain-bandwidth products higher than approximately 10 GHz, which promise a new generation of phototransistors for applications such as sensing, imaging, and intrachip optical interconnects.
Book
Heterojunctions and Semiconductor Superlattices
TL;DR: In this article, the fundamental concepts of Spectroscopy Theory Measuring Techniques and Data Analysis Applications of Impedance are discussed. But they do not cover the application of spectroscopy in data analysis.
Journal ArticleDOI
Optical properties of ZnO nanostructures.
TL;DR: A review of current research on the optical properties of ZnO nanostructures and results of nonlinear optical studies, such as second-harmonic generation, are presented.