A Review of Light-Emitting Diodes and Ultraviolet Light-Emitting Diodes and Their Applications

被引:1
|
作者
Bhattarai, Trailokya [1 ]
Ebong, Abasifreke [1 ]
Raja, Mohammad Yasin Akhtar [2 ]
机构
[1] UNC Charlotte, Dept Elect Engn & Comp Sci, Charlotte, NC 28223 USA
[2] UNC Charlotte, Dept Phys & Opt Sci, Charlotte, NC 28223 USA
关键词
LED fundamentals; LED history; LED efficiency; UV LED; blue LED; green LED; red LED; white lighting; lighting and display applications; mini-LED; micro-LED; microbial deactivation; UV dose; solar powered UV LEDs; PHASE EPITAXIAL-GROWTH; GAN-BASED LEDS; HIGH-POWER; HUMAN CORONAVIRUSES; QUANTUM DOTS; RED-LIGHT; NM ALGAN; BLUE; EFFICIENCY; WATER;
D O I
10.3390/photonics11060491
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
This paper presents an extensive literature review on Light-Emitting Diode (LED) fundamentals and discusses the historical development of LEDs, focusing on the material selection, design employed, and modifications used in increasing the light output. It traces the evolutionary trajectory of the efficiency enhancement of ultraviolet (UV), blue, green, and red LEDs. It rigorously examines the diverse applications of LEDs, spanning from solid-state lighting to cutting-edge display technology, and their emerging role in microbial deactivation. A detailed overview of current trends and prospects in lighting and display technology is presented. Using the literature, this review offers valuable insights into the application of UV LEDs for microbial and potential viral disinfection. It conducts an in-depth exploration of the various microorganism responses to UV radiation based on the existing literature. Furthermore, the review investigates UV LED-based systems for water purification and surface disinfection. A prospective design for a solar-powered UV LED disinfection system is also delineated. The primary objective of this review article is to organize and synthesize pivotal information from the literature, offering a concise and focused overview of LED applications. From our review, we can conclude that the efficiency of LEDs has continuously increased since its invention and researchers are searching for methods to increase efficiency further. The demand for LED lighting and display applications is continuously increasing. Our analysis reveals an exciting horizon in microbial disinfection, where the integration of UV LED systems with cutting-edge technologies such as sensors, solar power, Internet-of-Things (IoT) devices, and artificial intelligence algorithms promises high levels of precision and efficacy in disinfection practices. This contribution sets the stage for future research endeavors in the domain of viral disinfection using solar-powered UV LED modules for universal applications.
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页数:41
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