南方科技大学知识苑(SUSTech KC): R/G/B Micro-LEDs for In-Pixel Integrated Arrays and Temperature Sensing

题名	R/G/B Micro-LEDs for In-Pixel Integrated Arrays and Temperature Sensing
作者	Liu, Yibo 1; Hyun, Byung-Ryool 2; Wang, Yan2 ; Zhang, Ke 1; Kwok, Hoi Sing 1; Liu, Zhaojun2
通讯作者	Liu, Zhaojun
发表日期	2021-01-26
DOI	10.1021/acsaelm.0c00757
发表期刊	ACS APPLIED ELECTRONIC MATERIALS 影响因子和分区
EISSN	2637-6113
卷号	3 期号:1页码:3-10
摘要	In this paper, we demonstrate that nitride-based R/G/B micro-LEDs allow temperature sensing through a forward voltage response on both temperature and display devices. In temperature sensing, micro-LEDs operate in current constant mode, exhibiting an excellent performance with a sensitivity of 2.6/2.7/2.2 mV/K for blue/green InGaN micro-LEDs and red AlGaInP microLED under an injection current density of 1 mA/cm(2), which is about two times lower sensitivity than the sensitivity limit obtained from the Shockley ideal diode equation. It is speculated that the lower sensitivity originated from parasitic resistances. It is also found that the band gaps of ternary InGaN and quaternary AlGaInP obtained from temperature-dependent electroluminescence spectra of red micro-LED agrees with the calculated values by using the semiempirical Varshni relationship. The EL of micro-LEDs is characterized by narrow emission widths of 18-41 nm, leading to wide color gamut covering up to 170/97% of the DCI P3/BT 2020, which are the standard color space of ultrahigh definition television system.
关键词	R/G/B micro-LEDs temperature sensing microdisplay multifunction temperature dependence size dependence
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
资助项目	Guangdong Science and Technology (Project Name: High Speed Visible Light Communications based on RGB Micro-LED Arrays)[2017B010 114002] ; Shenzhen Science and Technology Program[KQTD20170810110313773] ; Shenzhen Technology Research Project (Project Name: Visual Interaction based on VR/AR + Micro-LED Large Screen)[JSGG20180508152033073] ; High-level University Fund[G02236005]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary
WOS记录号	WOS:000613935300002
出版者	AMER CHEMICAL SOC
EI入藏号	20210809953666
来源库	Web of Science
引用统计	被引频次[WOS]：18
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/220995
专题	工学院_电子与电气工程系
作者单位	1.Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Peoples R China 2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China
通讯作者单位	电子与电气工程系
推荐引用方式 GB/T 7714	Liu, Yibo,Hyun, Byung-Ryool,Wang, Yan,et al. R/G/B Micro-LEDs for In-Pixel Integrated Arrays and Temperature Sensing[J]. ACS APPLIED ELECTRONIC MATERIALS,2021,3(1):3-10.
APA	Liu, Yibo,Hyun, Byung-Ryool,Wang, Yan,Zhang, Ke,Kwok, Hoi Sing,&Liu, Zhaojun.(2021).R/G/B Micro-LEDs for In-Pixel Integrated Arrays and Temperature Sensing.ACS APPLIED ELECTRONIC MATERIALS,3(1),3-10.
MLA	Liu, Yibo,et al."R/G/B Micro-LEDs for In-Pixel Integrated Arrays and Temperature Sensing".ACS APPLIED ELECTRONIC MATERIALS 3.1(2021):3-10.