| 세션명 | Graduate Student Oral Session (I) (English) |
|---|---|
| 발표장 | 제5회장 |
| 논문코드 | O5-14 |
| 발표일 | 2024-04-3 |
| 발표시간 | 16:30-16:45 |
| 논문제목 | Synthesis and Photophysical Characterization of Narrow Bandgap Bichromophoric Organic Single Crystals |
| 발표자 | 권현민 |
| 발표자 소속 | 성균관대학교 |
| 저자 | 권현민, 조새벽†, 김진현, 수닐, 손민균, 오한별, 김현우, 김민성, 안희찬 |
| 소속 | 성균관대학교 |
| 논문초록 | Y-series non-fullerene acceptors have shown a unique behavior of heavy-atom-free control of intersystem crossing (ISC) rates. However, their structure-property relation still remains elusive, limiting their broader use. Here, we investigated crystalline-motif-dependent photophysical behaviors of them and demonstrated their multi-chromorphoric natures. Solvent diffusion method was employed to synthesize various motifs of single crystals, and their optical properties were monitored at cryogenic temperatures. Interestingly, they showed unconventional growth and retardation of bathochromic features upon temperature lowering, which becomes far more pronounced when triplet-sensitized. This study also examines long-lived polaron generation from such long-lived triplet-like species at the heterointerface in solid state. Possible future applications include devices requiring prolonged exciton lifetimes and delayed recombination such as photonic sensors and photonic in-memory computing. |
THE POLYMER SOCIETY OF KOREA