| 학회 | 한국화학공학회 |
| 학술대회 | 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 | 14권 2호, p.3281 |
| 발표분야 | 재료 |
| 제목 | Effect of thermal annealing on the optoelectronic properties of CdSe nanoparticles |
| 초록 | Thermal annealing effect on the structural and optical properties of synthesized CdSe nanoparticles has been elucidated and applied on the performance improvement of bulk hetero-junction solar cell. Improvement in crystallinity and cell stabilization of as-synthesized CdSe nanoparticles could be achieved by controlling the annealing parameters in air or oxygen at relatively higher temperatures (250°C ~ 450°C). Synthesized and annealed CdSe nanoparticles were characterized by HR-TEM, XRD, XPS and PL measurements. XRD analysis exhibited air annealing-induced phase transition in the nanocrystalline CdSe from cubic Zinc Blende to hexagonal Wurtzite structure. After annealing, the intensity of PL emission peak was substantially increased and the solar cell with optimized active layer showed enhancement in power conversion efficiency. This work was supported by grant No. RTI04-01-04 from the Regional Technology Innovation Program of the Ministry of Knowledge Economy (MKE) and the researchers involved in this work was supported by the 2nd phase of the BK21 Program. |
| 저자 | 움메 파르바, 나영희, 트롱윈탐윈, 구대욱, 전우석, 박진호 |
| 소속 | 영남대 |
| 키워드 | CdSe nanoparticles; thermal annealing; HR-TEM; XRD; PL spectroscopy |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
