Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72479
Title: Analysis and design of AlGaInP single-quantum-well LED
Authors: Lee, Liang Pao
Chua, Soo Jin 
Issue Date: 1999
Source: Lee, Liang Pao,Chua, Soo Jin (1999). Analysis and design of AlGaInP single-quantum-well LED. Proceedings of SPIE - The International Society for Optical Engineering 3896 : 155-162. ScholarBank@NUS Repository.
Abstract: Calculations are done and compared for two AlGaInP single-quantum-well (SQW) LED structures: step separate-confinement-heterostructure (SCH) SQW structure and graded-index (GRIN) SCH-SQW structure. It is found that the latter has better performance in terms of spontaneous lifetime and injection efficiency. This is attributed to greater barrier height to electron leakage and substantial overlap between wavefunctions of different quantum numbers in the GRIN-SCH-SQW structure. Results also show that the GRIN layer thickness has no influence on the QW energy levels, spontaneous lifetime and injection efficiency in a GRIN-SCH-SQW.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/72479
ISSN: 0277786X
Appears in Collections:Staff Publications

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