Journal ArticleDOI
Ultraviolet photodetectors made from SnO2 nanowires
Jyh Ming Wu,Cheng-Hsiang Kuo +1 more
- Vol. 517, Iss: 14, pp 3870-3873
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TLDR
In this paper, the SnO 2 nanowires were synthesized on alumina substrates and formed into an ultraviolet (UV) photodetector, which exhibited a rapid photo-response as a UV lamp was switched on and off.Abstract:
SnO 2 nanowires can be synthesized on alumina substrates and formed into an ultraviolet (UV) photodetector. The photoelectric current of the SnO 2 nanowires exhibited a rapid photo-response as a UV lamp was switched on and off. The ratio of UV-exposed current to dark current has been investigated. The SnO 2 nanowires were synthesized by a vapor–liquid–solid process at a temperature of 900 °C. It was found that the nanowires were around 70–100 nm in diameter and several hundred microns in length. High-resolution transmission electron microscopy (HRTEM) image indicated that the nanowires grew along the [200] axis as a single crystallinity. Cathodoluminescence (CL), thin-film X-ray diffractometry, and X-ray photoelectron spectroscopy (XPS) were used to characterize the as-synthesized nanowires.read more
Citations
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Journal ArticleDOI
A Comprehensive Review of Semiconductor Ultraviolet Photodetectors: From Thin Film to One-Dimensional Nanostructures
TL;DR: A comprehensive review on the state-of-the-art research activities in the UV photodetection field, including not only semiconductor thin films, but also 1D nanostructured materials, which are attracting more and more attention in the detection field are provided.
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Low-dimensional nanostructure ultraviolet photodetectors.
TL;DR: This article provides a brief summary about recent progress on LD nanostructures based visible-light-blind ultraviolet photodetectors and an outlook on the future developments of this research field are highlighted.
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Recent advances in ultraviolet photodetectors
TL;DR: In this article, a review of ultraviolet photodetectors (PDs) is presented, with a focus on the unique advantages of different UV PDs, current device schemes and demonstrations, novel structures and new material compounds which are used to fabrication of PDs.
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Ultrahigh external quantum efficiency from thin SnO2 nanowire ultraviolet photodetectors.
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Energy Harvesting for Nanostructured Self-Powered Photodetectors
TL;DR: In this article, the energy-havesting techniques are discussed and their prospects for application in self-powered photodetectors are summarized, and potential future directions of this research area are highlighted.
References
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Journal ArticleDOI
Vapor‐liquid‐solid mechanism of single crystal growth
R. S. Wagner,W. C. Ellis +1 more
Journal ArticleDOI
Nanowire ultraviolet photodetectors and optical switches
TL;DR: In this paper, the photoconducting properties of individual semiconductor nanowires are explored and the authors show the possibility of creating highly sensitive nanowire switches by exploring the photocconducting properties.
Journal ArticleDOI
Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts
TL;DR: In this article, a single-crystalline SnO2 nanobelts were fabricated using the integrity of a single nanobelt with a sensitivity at the level of a few ppb.
Journal ArticleDOI
Nanowire-based dye-sensitized solar cells
Jason B. Baxter,Eray S. Aydil +1 more
TL;DR: In this article, a ZnO nanowire-based dye-sensitized solar cell was proposed to provide a direct conduction path for electrons between the point of photogeneration and the conducting substrate and may offer improved electron transport compared to films of sintered nanoparticles.