Silica−Titania-Based Organic−Inorganic Hybrid Materials for Photovoltaic Applications | Zendy

ChengLan Lin | Zendy; MeiYu Yeh | Zendy; ChihHsien Chen | Zendy; Sundarraj Sudhakar | Zendy; Shr-Jie Luo | Zendy; YingChan Hsu | Zendy; Chung-Yi Huang | Zendy; KuoChuan Ho | Zendy; TienYau Luh | Zendy

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Silica−Titania-Based Organic−Inorganic Hybrid Materials for Photovoltaic Applications

Author(s) -

ChengLan Lin,

MeiYu Yeh,

ChihHsien Chen,

Sundarraj Sudhakar,

Shr-Jie Luo,

YingChan Hsu,

Chung-Yi Huang,

KuoChuan Ho,

TienYau Luh

Publication year - 2006

Publication title -

chemistry of materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.741

H-Index - 375

eISSN - 1520-5002

pISSN - 0897-4756

DOI - 10.1021/cm0602693

Subject(s) - materials science , photocurrent , nanocrystalline material , hybrid material , chromophore , covalent bond , photovoltaic system , chemical engineering , surface photovoltage , indium tin oxide , thin film , photochemistry , nanotechnology , optoelectronics , organic chemistry , spectroscopy , chemistry , ecology , physics , quantum mechanics , engineering , biology

Silica−titania-based organic−inorganic hybrid materials (OIHMs) containing covalently bonded organic chromophores with photosensitization ability were developed. The presence of the Ti−O−Si linkage in these OIHMs was established by infrared spectroscopy. Photocurrent and photovoltage were generated upon irradiation of these OIHM films on an indium tin oxide (ITO) glass or nanocrystalline TiO2 surface. The photovoltaic properties depend on the relative molar fractions of silica and titania in the OIHM films. The OIHMs thus prepared can serve as anchoring matrixes for associating the chromophores with nanocrystalline TiO2 surfaces and can be used as active layers in photovoltaic devices. Control experiments using a blending protocol suggest that covalent bonding between the chromophores and the silica−titania hybrid networks is essential to enhancing the performance of photovoltaic devices.

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