Skip to Main Content
 

Global Search Box

 
 
 
 

ETD Abstract Container

Abstract Header

Analysis of Light Extraction Efficiency Enhancement for Deep Ultraviolet and Visible Light-Emitting Diodes with III-Nitride Micro-Domes

Abstract Details

2013, Master of Sciences (Engineering), Case Western Reserve University, EECS - Electrical Engineering.
III-nitride (In, Al, Ga-N) semiconductors are considered as wide-bandgap materials that have promising applications in the next generation of lighting technology such as ultraviolet (UV) / visible light-emitting diodes and laser diodes. The limitation occurred in light extraction efficiency of III-nitride LEDs is attributed to the large refractive index difference between III-nitride semiconductor and free space, which leads to significant total internal reflection at the semiconductor and air interface. This thesis presents the design of III-nitride micro-dome surface structures at the emission surface of LEDs to enhance the extraction efficiency. The extraction efficiency analysis and micro-dome structure designs were conducted for both deep-UV AlGaN quantum wells (QWs) LEDs and thin-film flip-chip (TFFC) InGaN QWs visible LEDs by using three dimensional finite difference time domain (3D-FDTD) method. The analysis results shows significant enhancement of light extraction efficiency from both deep-UV LEDs and TFFC visible LEDs with III-nitride micro-domes.
Hongping Zhao (Committee Chair)
Christian Zorman (Committee Member)
Francis Merat (Committee Member)

Recommended Citations

Citations

  • Zhao, P. (2013). Analysis of Light Extraction Efficiency Enhancement for Deep Ultraviolet and Visible Light-Emitting Diodes with III-Nitride Micro-Domes [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1346876941

    APA Style (7th edition)

  • Zhao, Peng. Analysis of Light Extraction Efficiency Enhancement for Deep Ultraviolet and Visible Light-Emitting Diodes with III-Nitride Micro-Domes. 2013. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1346876941.

    MLA Style (8th edition)

  • Zhao, Peng. "Analysis of Light Extraction Efficiency Enhancement for Deep Ultraviolet and Visible Light-Emitting Diodes with III-Nitride Micro-Domes." Master's thesis, Case Western Reserve University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1346876941

    Chicago Manual of Style (17th edition)