Luminescence properties of blue and green dual wavelength InGaN/GaN multi-quantum well light-emitting diode

doi:10.1007/s12200-009-0070-4

Front Optoelec Chin

2009, Vol. 2

Issue (4) : 446-449 https://doi.org/10.1007/s12200-009-0070-4

RESEARCH ARTICLE

Luminescence properties of blue and green dual wavelength InGaN/GaN multi-quantum well light-emitting diode

Feng WEN, Lirong HUANG(

), Liangzhu TONG, Dexiu HUANG, Deming LIU

Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

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Abstract

Blue and green dual wavelength InGaN/GaN multi-quantum well (MQW) light-emitting diode (LED) has wide applications in full color display, monolithic white LED and solid state lighting, etc. Blue and green dual wavelength LEDs, which consist of InGaN strain-reduction layer, green InGaN/GaN MQW and blue InGaN/GaN MQW, were grown by metal-organic chemical vapor deposition (MOCVD), and the luminescence properties of dual wavelength LEDs with different well arrangements were studied by photoluminescence and electroluminescence. The experimental results indicated that well position played an important role on the luminescence evolvement from photoluminescence to electroluminescence.

Keywords multi-quantum well (MQW) luminescence dual-wavelength metal-organic chemical vapor deposition (MOCVD)

Corresponding Author(s): HUANG Lirong,Email:hlr5649@163.com

Issue Date: 05 December 2009

Cite this article:

Dexiu HUANG,Deming LIU,Feng WEN, et al. Luminescence properties of blue and green dual wavelength InGaN/GaN multi-quantum well light-emitting diode[J]. Front Optoelec Chin, 2009, 2(4): 446-449.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-009-0070-4
https://academic.hep.com.cn/foe/EN/Y2009/V2/I4/446

Fig.1 Schematic structure. (a) Sample A; (b) sample B

Fig.2 Schematic structure. (a) Sample C; (b) sample D

Fig.3 PL spectra for sample A and sample B

Fig.4 Spectrum of sample C. (a) PL spectrum; (b) EL spectrum

Fig.5 Spectrum of sample D. (a) PL spectrum; (b) EL spectrum

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