Effects of Dislocation Loops into Electroluminescence of Si-based Light Emitting Diodes


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Hoang, T. and LeMinh, P. and Holleman, J. and Schmitz, J. (2004) Effects of Dislocation Loops into Electroluminescence of Si-based Light Emitting Diodes. In: SAFE 2004, 7th Annual Workshop on Semiconductor Advances for Future Electronics, 25-26 Nov 2004, Veldhoven, the Netherlands.

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Abstract:Recently different and contradicting results regarding the influence of dislocation loops on light emitting efficiency of Si-based LEDs at room temperature were published [1-4]. We report our results on light emission of devices called DILED and DiFLED which are with and without dislocation loops, respectively. The p-n junction in the DiFLED device was realized by dopant diffusion while using ion implantation with various ion energies for DILED. Electroluminescence (EL) has been used to investigate room-temperature light-emission and the contribution of dislocation loops by comparison of the characteristics between the DiFLED and DILED devices. In this paper, the device fabrication, working principle and properties will be discussed. The electrical and optical characteristics of the different devices were measured and discussed. Some simulation results using the Sivalco code give more insight on the effects of dislocation loops.
Item Type:Conference or Workshop Item
Copyright:© STW, Technology Foundation 2004
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/59561
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