에어로졸 공정에 의한 Graphene-TiO2 복합체 제조 및 염료감응 태양전지 특성평가
Preparation of graphene‐TiO2 composite by aerosol process and it’s characterization for dye‐sensitized solar cell
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A graphene(GR) ‐ TiO2 composite was synthesized from colloidal mixture of graphene oxide(GO) nanosheets and TiO2 nanoparticles by an aerosol assisted self‐assembly. The morphology, specific surface area and pore size of as‐prepared GR‐TiO2 composite were characterized by FE‐SEM, BET, and BJH respectively. The shape of GR‐TiO2 composite was spherical. The average particle size was 0.5 ‐ 1 ㎛ in diameter and the pore diameter ranged 20 ‐ 50 ㎚. Photovoltaic characteristics of a mixture of the GR‐TiO2 and TiO2 nanoparticles were measured by a solar simulator under simulated solar light. The highest photoelectric conversion efficiency of the mixture photoanode was 5.1%, which was higher than that of TiO2 photoanode.
Abstract
A graphene(GR) ‐ TiO2 composite was synthesized from colloidal mixture of graphene oxide(GO) nanosheets and TiO2 nanoparticles by an aerosol assisted self‐assembly. The morphology, specific surface area and pore size of as‐prepared GR‐TiO2 composite were characterized by FE‐SEM, BET, and BJH respectively. The shape of GR‐TiO2 composite was spherical. The average particle size was 0.5 ‐ 1 ㎛ in diameter and the pore diameter ranged 20 ‐ 50 ㎚. Photovoltaic characteristics of a mixture of the GR‐TiO2 and TiO2 nanoparticles were measured by a solar simulator under simulated solar light. The highest photoelectric conversion efficiency of the mixture photoanode was 5.1%, which was higher than that of TiO2 photoanode.
참고문헌 (13)
- Chang, J., "Hierarchical titania mesoporous sphere", graphene composite, synthesis and application as photoanode in dye sensitized solar cells, 2013, pp.394, 231~236
- Fang, X., "Improved properties of dye‐sensitized solar cells by incorporation of graphene into the photoelectrodes", Electrochimica Acta, 65, pp.174~178 (2012)
- Hummers, W. S., "Preparation of graphitic oxide", Journal of the American Chemical Society, 80, pp.1339~ (1958)
- Ito, S., "Fabrication of screen‐printing pastes from TiO2 powders for dye‐sensitised solar cells", Prog. Photovolt: Res. Appl, 15, pp.603~612 (2007)
- Jang, H. D., "Fabrication of porous nanostructured TiO2 particles by an aerosol templating method", Ultramicroscopy, 108, pp.1241~1245 (2008)
- Manga, K. K., "Multilayer hybrid films consisting of alternating graphene and titania nanosheets with ultrafast electron transfer and photoconversion properties", Adv. Funct. Mater, 19, pp.3638~3643 (2009)
- O’Regan, B, "A low cost, highefficiency solar cell based on dye‐sensitized colloidal TiO2 films", Nature, 353, pp.737~739 (1991)
- 오경준, "나노입자들의 자기조립에 의한 TiO_2-SiO_2 다공체 제조", PARTICLE AND AEROSOL RESEARCH, 7(3), pp.79~85 (2011), 한국입자에어로졸학회
- Tang, Y. B., "Incorporation of graphenes in nanostructured TiO2 films via molecular grafting for dye‐sensitized solar cell application", ACS NANO, 4, pp.6~ (2010)
- Yang, N., "Two‐dimensional gaphene bridges enhanced photoinduced charge transport in dye‐sensitized solar cells", ACS NANO, 2, pp.887~894 (2010)
- Yen, M. Y., "Preparation of graphene", multi‐walled carbon nanotube hybrid and its use as photoanodes of dye‐sensitized solar cells, 2011, pp.49, 3597~3606
- Yu, J., "Dye‐sensitized solar cells based on anatase TiO2 hollow spheres", carbon nanotube composite films, 2011, pp.196, 7891~7898
- Yun, T. K., "Pore‐size effect on photovoltaic performance of dyesensitized solar cells composed of mesoporous anatase‐titania", Journal of Power Sources, 196, pp.3678~3682 (2011)