| 학회 |
한국재료학회 |
| 학술대회 |
2015년 봄 (05/14 ~ 05/15, 구미코) |
| 권호 |
21권 1호 |
| 발표분야 |
제28회 신소재 심포지엄 - 콜로이드 양자점: 합성 및 응용 |
| 제목 |
All-Inorganic Nanocrystals for Energy Device Applications |
| 초록 |
Nanoparticles of different metals, semiconductors and magnetic materials can self-assemble from colloidal solutions into long range ordered periodic structures (superlattices). Colloidal nanocrystals are considered promising building blocks for electronic and optoelectronic devices. Potentially, they can combine the advantages of crystalline inorganic semiconductors with size-tunable electronic structure and inexpensive solution-based device fabrication. However, the insulating nature of the surface ligands used for nanocrystal synthesis typically results in the poor electronic coupling between individual nanocrystals. In an attempt to address this fundamental problem, we demonstrated that molecular metal chalcogenide complexes can serve as versatile ligands for a broad range of inorganic nanomaterials. This new class of nanocrystal colloids provides a set of advantages such as all-inorganic design and diverse compositional tunability for both nanocrystal and ligand constituents. We observed electron mobility of ＞15 cm2/Vs in arrays of CdSe nanocrystals capped with metal chalcogenide Zintl ions. We demonstrate the power of this approach on several examples of prospective thermoelectric and photovoltaic materials. |
| 저자 |
이종수 |
| 소속 |
대구경북과학기술원 |
| 키워드 |
Nanocrystals; Inorganic Ligands
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| E-Mail |
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