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| Presentation | 2009-08-11 12:05 Growth and characterization of telecom-wavelength quantum dots using Bi as a surfactant Hiroshi Okamoto (Hirosaki Univ.), Takehiko Tawara, Hideki Gotoh, Hidehiko Kamada, Tetsuomi Sogawa (NTT)  CPM2009-46 Link to ES Tech. Rep. Archives: CPM2009-46 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The effectiveness of adding TMBi during telecom-wavelength-quantum-dot growth on improving its optical quality and extending its emission wavelength is reported. It was confirmed that the Bi acted as a kind of surfactant during the growth. In addition, it was discussed that the origin of the emission-wavelength extension was resembled to "activated spinodal decomposition" reported for MBE grown QDs. Regarding the QD density, it was confirmed that the density was increased by using much higher V/III condition than usual during the growth. As for investigation for increasing the QD-stack number, a dislocation-free multiple QD stack in which each QD was not coupled to the other one located in neighbor layers was obtained by introducing GaAs0.72P0.28 strain compensation layers. The special photoluminescence feature observed for this multiple QD-stack sample was discussed with the existence of non-radiative recombination centers. Further investigation of the recombination centers is needed for further improvement of the QD optical quality. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | quantum dot / InAs / telecom wavelength / surfactant / Bi / photoluminescence / TEM / STEM | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 171, CPM2009-46, pp. 67-72, Aug. 2009. | |
| Paper # | CPM2009-46 | |
| Date of Issue | 2009-08-03 (CPM) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CPM2009-46 Link to ES Tech. Rep. Archives: CPM2009-46 |
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| Conference Information | |
| Committee | CPM |
| Conference Date | 2009-08-10 - 2009-08-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hirosaki Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Electronic Component Parts and Materials, etc. |
| Paper Information | |
| Registration To | CPM |
| Conference Code | 2009-08-CPM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Growth and characterization of telecom-wavelength quantum dots using Bi as a surfactant |
| Sub Title (in English) | |
| Keyword(1) | quantum dot |
| Keyword(2) | InAs |
| Keyword(3) | telecom wavelength |
| Keyword(4) | surfactant |
| Keyword(5) | Bi |
| Keyword(6) | photoluminescence |
| Keyword(7) | TEM |
| Keyword(8) | STEM |
| 1st Author's Name | Hiroshi Okamoto |
| 1st Author's Affiliation | Hirosaki University (Hirosaki Univ.) |
| 2nd Author's Name | Takehiko Tawara |
| 2nd Author's Affiliation | NTT Basic Research Laboratories (NTT) |
| 3rd Author's Name | Hideki Gotoh |
| 3rd Author's Affiliation | NTT Basic Research Laboratories (NTT) |
| 4th Author's Name | Hidehiko Kamada |
| 4th Author's Affiliation | NTT Basic Research Laboratories (NTT) |
| 5th Author's Name | Tetsuomi Sogawa |
| 5th Author's Affiliation | NTT Basic Research Laboratories (NTT) |
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| Speaker | Author-1 |
| Date Time | 2009-08-11 12:05:00 |
| Presentation Time | 25 minutes |
| Registration for | CPM |
| Paper # | CPM2009-46 |
| Volume (vol) | vol.109 |
| Number (no) | no.171 |
| Page | pp.67-72 |
| #Pages | 6 |
| Date of Issue | 2009-08-03 (CPM) |
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