scholarly journals Zinc oxide ultraviolet photodetectors: rapid progress from conventional to self-powered photodetectors

2019 ◽  
Vol 1 (6) ◽  
pp. 2059-2085 ◽  
Author(s):  
Buddha Deka Boruah
Keyword(s):  
Zinc Oxide ◽  
Energy Efficient ◽  
Review Article ◽  
Rapid Progress ◽  
Uv Photodetectors ◽  
Zno Nanomaterials ◽  
Self Powered ◽  
Ultraviolet Photodetectors

This review article focuses on the current developments of UV photodetectors from conventional to self-powered device designs based on energy efficient ZnO nanomaterials.

Self-powered UV photodetectors based on ZnO nanomaterials

2021 ◽  
Vol 8 (3) ◽  
pp. 031315
Author(s):  
Weixin Ouyang ◽  
Jiaxin Chen ◽  
Zhifeng Shi ◽  
Xiaosheng Fang
Keyword(s):  
Uv Photodetectors ◽  
Zno Nanomaterials ◽  
Self Powered

From nanofibers to ordered ZnO/NiO heterojunction arrays for self-powered and transparent UV photodetectors

2019 ◽  
Vol 7 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Zhiming Zhang ◽  
Yi Ning ◽  
Xiaosheng Fang
Keyword(s):  
High Performance ◽  
Uv Photodetectors ◽  
Self Powered ◽  
Ultraviolet Photodetectors

Ordered ZnO/NiO heterojunction arrays prepared via electrospinning using three-assisted-electrodes were achieved for high-performance self-powered ultraviolet photodetectors.

Arctium lappa and management of liver functions to detoxifying the bloodstream

2020 ◽  
Vol 10 ◽  
Author(s):  
Mohaddese Mahboubi
Keyword(s):  
Zinc Oxide ◽  
Carbon Tetrachloride ◽  
Animal Studies ◽  
Main Part ◽  
Liver Enzymes ◽  
Review Article ◽  
Northern Asia ◽  
Arctium Lappa ◽  
Perennial Plant ◽  
Liver Functions

: Arctium lappa or burdock (Compositae family) is a perennial plant, native to Europe, Northern Asia and North America. Burdock roots are known as detoxifying herb to clear toxins from the bloodstream. It seems that its effects are on the liver functions as the main part of body in detoxifying the bloodstream. The aim of this review article was to evaluate the potency of burdock in management of liver functions in detoxifying the bloodstream. The information was extracted from electronic resources (Google scholar, Science Direct, Springer, Magiran). The results of our investigation exhibited that the studies are limited to animal studies, but the results of investigations showed that burdock roots detoxify the liver against ethanol, carbon tetrachloride (CCL4), acetaminophen, cadmium and zinc oxide by improving the functions of liver enzymes. The antioxidant, anti-inflammatory and prebiotic effects of burdock roots may involve in its effects on liver enzymes and detoxifying the blood. The large clinical studies are required to confirm its efficacy on liver functions and detoxify the liver.

scholarly journals Recent advancements and perspectives on light management and high performance in perovskite light-emitting diodes

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shaoni Kar ◽  
Nur Fadilah Jamaludin ◽  
Natalia Yantara ◽  
Subodh G. Mhaisalkar ◽  
Wei Lin Leong
Keyword(s):  
High Performance ◽  
Light Propagation ◽  
Light Emission ◽  
Review Article ◽  
Rapid Progress ◽  
Light Emitting ◽  
Materials Engineering ◽  
Perovskite Materials ◽  
Light Management ◽  
Photon Recycling

Abstract Perovskite semiconductors have experienced meteoric rise in a variety of optoelectronic applications. With a strong foothold on photovoltaics, much focus now lies on their light emission applications. Rapid progress in materials engineering have led to the demonstration of external quantum efficiencies that surpass the previously established theoretical limits. However, there remains much scope to further optimize the light propagation inside the device stack through careful tailoring of the optical processes that take place at the bulk and interface levels. Photon recycling in the emitter material followed by efficient outcoupling can result in boosting external efficiencies up to 100%. In addition, the poor ambient and operational stability of these materials and devices restrict further commercialization efforts. With best operational lifetimes of only a few hours reported, there is a long way to go before perovskite LEDs can be perceived as reliable alternatives to more established technologies like organic or quantum dot-based LED devices. This review article starts with the discussions of the mechanism of luminescence in these perovskite materials and factors impacting it. It then looks at the possible routes to achieve efficient outcoupling through nanostructuring of the emitter and the substrate. Next, we analyse the instability issues of perovskite-based LEDs from a photophysical standpoint, taking into consideration the underlying phenomena pertaining to defects, and summarize recent advances in mitigating the same. Finally, we provide an outlook on the possible routes forward for the field and propose new avenues to maximally exploit the excellent light-emitting capabilities of this family of semiconductors.

scholarly journals Two‐Dimensional Bis(dithiolene)iron(II) Self‐Powered UV Photodetectors with Ultrahigh Air Stability

2021 ◽  
pp. 2100564
Author(s):  
Ying‐Chiao Wang ◽  
Chun‐Hao Chiang ◽  
Chi‐Ming Chang ◽  
Hiroaki Maeda ◽  
Naoya Fukui ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Uv Photodetectors ◽  
Self Powered

High performance self-powered CuZnS/GaN UV photodetectors with ultrahigh on/off ratio (3 × 108)

2021 ◽  
Vol 9 (14) ◽  
pp. 4799-4807
Author(s):  
Yong Zhang ◽  
Weidong Song
Keyword(s):  
Chemical Bath Deposition ◽  
High Performance ◽  
Response Speed ◽  
Fast Response ◽  
Uv Photodetector ◽  
Uv Photodetectors ◽  
Simple Chemical ◽  
Self Powered

P-CuZnS/n-GaN UV photodetector is prepared by a simple chemical bath deposition, showing excellent self-powered properties, including ultrahigh on/off ratio (3 × 108), fast response speed (0.14/40 ms) and large detectivity of 3 × 1013 Jones.

A simple, repeatable and highly stable self-powered solar-blind photoelectrochemical-type photodetector using amorphous Ga2O3 films grown on 3D carbon fiber paper

2021 ◽  
Author(s):  
Lijuan Huang ◽  
Zhengrui Hu ◽  
Hong Zhang ◽  
Yuanqiang Xiong ◽  
Shiqiang Fan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Gallium Oxide ◽  
Three Dimensional ◽  
Next Generation ◽  
Solar Blind ◽  
Carbon Fiber Paper ◽  
Deep Ultraviolet ◽  
Self Powered ◽  
Ultraviolet Photodetectors

Gallium oxide (Ga2O3) has been extensively studied in recent years because it is a natural candidate material for next-generation solar-blind deep ultraviolet photodetectors (PDs). Herein, a three dimensional (3D) amorphous...

Surface photo-charge effect in doped-ZnO nanorods for high-performance self-powered ultraviolet photodetectors

Nanoscale ◽  
2017 ◽  
Vol 9 (13) ◽  
pp. 4536-4543 ◽  
Author(s):  
Buddha Deka Boruah ◽  
Shanmukh Naidu Majji ◽  
Abha Misra
Keyword(s):  
High Performance ◽  
Zno Nanorods ◽  
Charge Effect ◽  
Doped Zno ◽  
Self Powered ◽  
Ultraviolet Photodetectors
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