Quantum dot micro-LEDs for the study of few-dot electroluminescence, fabricated by focussed ion beam
✍ Scribed by M. Vitzethum; R. Schmidt; P. Kiesel; P. Schafmeister; D. Reuter; A.D. Wieck; G.H. Döhler
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 174 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1386-9477
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✦ Synopsis
We present ÿrst results from a micrometer sized micro-LED fabricated for the electroluminescence (EL) investigation of very few to one self-assembled quantum dot. Utilizing focussed ion beam (FIB) implantation we were able to fabricate a LED consisting of crossed p-and n-doped stripes of a few micrometer width. Conÿned between both stripes is a layer of quantum dots symmetrically embedded in a thin i-layer. We show that good quality quantum dots can be grown on FIB implemented regions and present ÿrst EL spectra which agree very well with PL measurements.