
Proceedings Paper
The effects of oxide apertures on the characteristics of resonant-cavity light-emitting diodesFormat | Member Price | Non-Member Price |
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Paper Abstract
The 650nm oxide-confined RCLEDs (resonant-cavity light-emitting diodes) have been fabricated with different
oxide aperture diameters. The oxide apertures, which could apply confinement of both the carrier distribution and the
optical field, are created by lateral selective wet oxidation of AlAs layer in the p-DBR (distributed Bragg reflectors). All
samples have the same diameter 80μm of the emission window defined by the circular electrodes, while their current
apertures are defined by the oxidation apertures ranged from 90μm to 130μm, larger than the emission window. The
maximum optical power is 1.909mW.
The electrical and optical properties are systematically discussed for different oxide apertures. The greater voltage
at 20mA is attained for smaller oxide-aperture devices as smaller oxide-aperture devices have greater series resistance
due to the oxide layer. The maximum output power is reached rapidly for smaller oxide-aperture devices since smaller
oxide-aperture devices have larger current density at the same current. The maximum output power of smaller oxideaperture
devices is lower than that of larger oxide-aperture devices. It is because that larger current density and greater
series resistance could lead to greater Joule heat, which results in more injected electrons relax their energy by the way
of nonradiation.
Paper Details
Date Published: 22 February 2012
PDF: 6 pages
Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 83330J (22 February 2012); doi: 10.1117/12.916261
Published in SPIE Proceedings Vol. 8333:
Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration
Erich Kasper; Jinzhong Yu; Xun Li; Xinliang Zhang; Jinsong Xia; Junhao Chu; Zhijiang Dong; Bin Hu; Yan Shen, Editor(s)
PDF: 6 pages
Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 83330J (22 February 2012); doi: 10.1117/12.916261
Show Author Affiliations
Wei Yang, Beijing Univ. of Technology (China)
Jianjun Li, Beijing Univ. of Technology (China)
Jianjun Li, Beijing Univ. of Technology (China)
Pei Sun, Beijing Univ. of Technology (China)
Lingyun Ma, Beijing Univ. of Technology (China)
Lingyun Ma, Beijing Univ. of Technology (China)
Published in SPIE Proceedings Vol. 8333:
Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration
Erich Kasper; Jinzhong Yu; Xun Li; Xinliang Zhang; Jinsong Xia; Junhao Chu; Zhijiang Dong; Bin Hu; Yan Shen, Editor(s)
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