| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.2405 |
| 발표분야 |
양승만 교수 추모 심포지엄 : 유체, 입자, 그리고 빛(Fluids, Particles, and Light) |
| 제목 |
Optoelectronic Applications of Colloidal Tetrapod Semiconductor Nanocrystals |
| 초록 |
In this presentation, we emphasize the utilization of well-defined tetrapod CdSe semiconductor NCs for transistors and solar cells applications. Colloidal tetrapod CdSe NCs with tunable arm length (30 ~ 90 nm) were prepared via the continuous precursor injection (CPI) methods with excellent shape selectivity. Beakwater-like networks of CdSe NCs were then formed by spin-coating the colloidal dispersions of tetrapod NCs. The porous nature of the NC networks allowed hybridizing the networks with other functional materials. The infusion of poly(3-hexylthiophene) (P3HT) into the CdSe networks formed pn-organic/inorganic hybrid bulk heterojunctions, resulting in solar cells with a power conversion efficiency up to 2.2%. Also, the introduction of ionic liquids into the networks enabled modulating the conductivity and mobility of the networks through the electrochemical gating process. We believe that the utilization of tetrapod-structured NCs provides new strategies to realize low-cost and flexible electronics. |
| 저자 |
Kookheon Char |
| 소속 |
National Creative Research Initiative Center for Intelligent Hybrids |
| 키워드 |
tetrapod nanocrystal(s); continuous precursor injection; solar cell(s); transistor(s)
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| E-Mail |
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| 원문파일 |
초록 보기 |
