High Refractive Organic-Inorganic Hybrid Films Prepared by Low Water Sol-Gel and UV-Irradiation Processes

Hsiao-Yuan Ma; Tzong-Liu Wang; Pei-Yu Chang; Chien-Hsin Yang

doi:10.3390/nano6030044

High Refractive Organic-Inorganic Hybrid Films Prepared by Low Water Sol-Gel and UV-Irradiation Processes

Nanomaterials (Basel). 2016 Mar 9;6(3):44. doi: 10.3390/nano6030044.

Authors

Hsiao-Yuan Ma¹, Tzong-Liu Wang², Pei-Yu Chang³, Chien-Hsin Yang⁴

Affiliations

¹ Department of Chemical and Materials Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road, Kaohsiung 811, Taiwan. 295329@cpc.com.tw.
² Department of Chemical and Materials Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road, Kaohsiung 811, Taiwan. tlwang@nuk.edu.tw.
³ Department of Chemical and Materials Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road, Kaohsiung 811, Taiwan. m1045614@mail.nuk.edu.tw.
⁴ Department of Chemical and Materials Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road, Kaohsiung 811, Taiwan. yangch@nuk.edu.tw.

Abstract

Organic-inorganic hybrid sols (Ti-O-Si precursor) were first synthesized by the sol-gel method at low addition of water, and were then employed to prepare a highly refractive hybrid optical film. This film was obtained by blending the Ti-O-Si precursor with 2-phenylphenoxyethyl acrylate (OPPEA) to perform photo-polymerization by ultraviolet (UV) irradiation. Results show that the film transparency of poly(Ti-O-Si precursor-co-OPPEA) film is higher than that of a pure poly(Ti-O-Si precursor) film, and that this poly(Ti-O-Si precursor-co-OPPEA) hybrid film exhibits a high transparency of ~93.7% coupled with a high refractive index (n) of 1.83 corresponding to a thickness of 2.59 μm.

Keywords: high refractive index; optical thin film; organic/inorganic hybrid; sol gel method.