| 세션명 | Graduate Student Oral Session (I) (English) |
|---|---|
| 발표장 | 제9회장 |
| 논문코드 | 1O9-7 |
| 발표일 | 2021-10-21 |
| 발표시간 | 15:30-15:45 |
| 논문제목 | Single-crystalline InP nano-tetrapod using surface energy-driven growth |
| 발표자 | 김영식 |
| 발표자 소속 | 성균관대학교 |
| 저자 | 김영식, 조은혜, 박성민, 최만민, 신지빈, 김효인, 정소희† |
| 소속 | 성균관대학교 |
| 논문초록 | 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. |
THE POLYMER SOCIETY OF KOREA