Ferroelectric Localized Field-Enhanced ZnO Nanosheet Ultraviolet Photodetector with High Sensitivity and Low Dark Current

Small ◽  
2018 ◽  
Vol 14 (22) ◽  
pp. 1800492 ◽  
Author(s):  
Peng Wang ◽  
Yang Wang ◽  
Lei Ye ◽  
Mingzai Wu ◽  
Runzhang Xie ◽  
...  
Keyword(s):  
Dark Current ◽  
High Sensitivity ◽  
Ultraviolet Photodetector

scholarly journals High sensitivity and rapid response ultraviolet photodetector of a tetragonal CsPbCl3 perovskite single crystal

2020 ◽  
Vol 10 (6) ◽  
pp. 1374 ◽  
Author(s):  
Ziyue Rao ◽  
Wenyi Liang ◽  
Haiming Huang ◽  
Jun Ge ◽  
Weiliang Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
High Sensitivity ◽  
Rapid Response ◽  
Ultraviolet Photodetector

The suppression of dark current for achieving high-performance Ga2O3 nanorod array ultraviolet photodetector

2022 ◽  
Author(s):  
Jia-Yun Wei ◽  
Liang-Ping Shen ◽  
Zhuo-Cheng Zheng ◽  
Yong-Chang Xu ◽  
Hao Wu ◽  
...  
Keyword(s):  
Dark Current ◽  
High Performance ◽  
Nanorod Array ◽  
Ultraviolet Photodetector

A High Performance UV Photodetector from Thin Film Diamond

1995 ◽  
Vol 416 ◽  
Author(s):  
Robert D. Mckeag ◽  
Michael D. Whitfield ◽  
Simon Sm Chan ◽  
Lisa Ys Pang ◽  
Richard B. Jackman
Keyword(s):  
Thin Film ◽  
Visible Light ◽  
Quantum Efficiency ◽  
Dark Current ◽  
External Quantum Efficiency ◽  
High Performance ◽  
Uv Light ◽  
High Sensitivity ◽  
Uv Photodetector ◽  
Deep Uv

ABSTRACTThin film diamond has been used to fabricate a photodetector which displays high sensitivity to deep UV light, with an external quantum efficiency of greater than one, a dark current of less than 0.1nA and which is near ‘blind’ to visible light.

Chemically synthesized nanowire TiO2/ZnO core-shell p-n junction array for high sensitivity ultraviolet photodetector

2013 ◽  
Vol 103 (19) ◽  
pp. 193119 ◽  
Author(s):  
T. D. Dao ◽  
C. T. T. Dang ◽  
G. Han ◽  
C. V. Hoang ◽  
W. Yi ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Core Shell ◽  
Ultraviolet Photodetector ◽  
Junction Array

scholarly journals A Complete Two-Dimensional Avalanche Photodiode Based on MoTe2−WS2−MoTe2 Heterojunctions With Ultralow Dark Current

2021 ◽  
Vol 8 ◽  
Author(s):  
Tenghui Ouyang ◽  
Ximiao Wang ◽  
Shaojing Liu ◽  
Huanjun Chen ◽  
Shaozhi Deng
Keyword(s):  
Dark Current ◽  
Near Infrared ◽  
Transition Metal Dichalcogenides ◽  
High Sensitivity ◽  
Avalanche Photodiode ◽  
Infrared Region ◽  
Low Noise ◽  
Two Dimensional ◽  
Device Structure ◽  
Avalanche Gain

Two-dimensional (2D)-material-based photodetectors have recently received great attention due to their potentials in developing ultrathin and highly compact devices. Avalanche photodiodes (APDs) are widely used in a variety of fields such as optical communications and bioimaging due to their fast responses and high sensitivities. However, conventional APDs based on bulk materials are limited by their relatively high dark current. One solution to tackle this issue is by employing nanomaterials and nanostructures as the active layers for APDs. In this study, we proposed and fabricated an atomically-thick APD based on heterojunctions formed by 2D transition metal dichalcogenides (TMDs). A typical device structure was formed by stacking a semiconducting monolayer WS2 onto two metallic few-layer MoTe2 flakes. Due to the Schottky barrier formed between the TMD layers and their atomic thicknesses, the dark current of the APD is greatly reduced down to 93 pA. In addition, the APD can operate through a broad spectral range from visible to near-infrared region, with a responsivity of 6.02 A/W, an external quantum efficiency of 1,406%, and an avalanche gain of 587. We believe that the 2D APD demonstrated here provides a feasible approach for developing all-2D optoelectronic devices with simultaneous high-sensitivity and low noise.

Low dark current and improved detectivity of hybrid ultraviolet photodetector based on carbon-quantum-dots/zinc-oxide-nanorod composites

2016 ◽  
Vol 39 ◽  
pp. 250-257 ◽  
Author(s):  
Sang-Won Lee ◽  
Kyung-Jae Choi ◽  
Byoung-Ho Kang ◽  
Jae-Sung Lee ◽  
Sae-Wan Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Zinc Oxide ◽  
Dark Current ◽  
Carbon Quantum Dots ◽  
Ultraviolet Photodetector
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