| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표, 발표15분) |
| 제목 |
Single-crystalline InP nano-tetrapod using surface energy-driven growth |
| 초록 |
Colloidal quantum dots (QDs) are semiconductor nanocrystals that can be affected by the quantum confinement effect. Although QDs have been explored for three decades, an understanding and controlling of the surfaces are still lagging in III-V QD especially. In this work, we demonstrate the controllable colloidal growth in InP QD synthesis using the reaction late intermediates. For isolating the reaction intermediates, the growth of particles is suppressed by reaction kinetic control using precursor conversion accelerators. The isolated intermediates have well-defined surfaces as (111) and (110). Based on the understanding of the surface energy, growth direction is kinetically controlled, and finally, the single-crystalline InP nano-tetrapods are synthesized. Interestingly, the single-crystalline InP tetrapods have one zinc-blende structure in both center and arm which is different from previously reported heterostructured CdSe, CdS tetrapods, and show novel optical properties. |
| 저자 |
김영식, 조은혜, 박성민, 최만민, 신지빈, 김효인, 정소희
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| 소속 |
성균관대 |
| 키워드 |
quantum dot; colloidal growth; nanocrystals; tetrapod
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| E-Mail |
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