| 학회 | 한국재료학회 |
| 학술대회 | 2011년 가을 (10/27 ~ 10/29, 신라대학교) |
| 권호 | 17권 2호 |
| 발표분야 | B. Nanomaterials and Processing Technology(나노소재기술) |
| 제목 | Nanoarchitectures for Enhancing Light-Harvesting and Charge-Collecting Properties in Dye-sensitized Solar Cells |
| 초록 | Photoelectrochemical solar cells such as dye-sensitized cells (DSSCs), which exhibit high performance and are cost-effective, provide an alternative to conventional p-n junction photovoltaic devices. However, the efficiency of such cells plateaus at 11-12%, in contrast to their theoretical value of 33%. The majority of research has focused on improving energy conversion efficiency of DSSC by controlling nanostructure and exploiting new materials in photoelectrode consisting of semiconducting oxide nanoparticles and a transparent conducting oxide electrode (TCO). [1-5] In this presentation, we introduce inverse opal-based scattering layers containing highly crystalline anatase nanoparticles and their feasibility for use as bi-functional light scattering layer is discussed in terms of optical reflectance and charge generation properties as a function of optical wavelength. A new ITO nanowire-based photoelecrode is also introduced and its unique charge collection property is presented, demonstrating potential use for highly efficient charge collection in DSSC. [1] H. S. Jung, H. Shin, S. W. Lee, J. Y. Kim, S. Kim, J. K. Lee, and K. S. Hong, Langmuir, 21, 10332 (2005). [2] J. H Noh, H. S Han, S. Lee, J. Y Kim, K. S Hong, G. S Han, H Shin, H. S Jung, Advanced Energy Materials, 1, webpublished (2011). [3] H. S. Jung, J. K. Lee, S. W. Lee, K. S. Hong, and H. Shin, J. Phys. Chem. C, 112, 8476 (2008). [4] S.-H. Han, S. Lee, H. Shin, H. S. Jung, Advanced Energy Materials, 1, 546 (2011). [5] S. Lee, I. S. Cho, J. H. Lee, D. H. Kim, J. K. Lee, H. S.Jung, and K. S. Hong, Chem. Mater. (2010) 22(6) 1958-1965 |
| 저자 | 정현석 |
| 소속 | 성균관대 |
| 키워드 | nanoarchitecture; DSSC; charge collection; light harvest |
