Universal lab on a smartphone: a research of TiOPc thin film as a light dependence electrode

PoHan Lin; Y. H. Hsu; C. K. Lee

doi:10.1117/12.2038465

28 February 2014 Universal lab on a smartphone: a research of TiOPc thin film as a light dependence electrode

PoHan Lin, Y. H. Hsu, C. K. Lee

Proceedings Volume 8951, Optical Diagnostics and Sensing XIV: Toward Point-of-Care Diagnostics; 89510I (2014) https://doi.org/10.1117/12.2038465
Event: SPIE BiOS, 2014, San Francisco, California, United States

Abstract

In this paper, we study the photoconductivity of a polymer-based TiOPc (Titanium Oxide Phthalocyanine) thin-film for the development of a multi-opto-piezoelectric-valve-array. Using a polymer-based TiOPc thin film to serve as the electrode and a structural layer of a piezoelectric polymer, P(VDF-TrFE) poly[(vinylidenefluoride-co-trifluoroethylene], an optical control valve-array could be developed for manipulating multiple microdroplets for the application of digital microfluidic. In this ongoing project, the dependency of the light intensity, thickness, and composition of spin-coated polymer-based TiOPc thin-film was studied. The experimental finding suggested that a 14 to 55 times resistivity change could be achieved by controlling the film thickness to be between 0.9 μm and 1.5 μm with TiOPc concentration of 20% and 30% w/w compositions.

Citation Download Citation

PoHan Lin, Y. H. Hsu, and C. K. Lee "Universal lab on a smartphone: a research of TiOPc thin film as a light dependence electrode", Proc. SPIE 8951, Optical Diagnostics and Sensing XIV: Toward Point-of-Care Diagnostics, 89510I (28 February 2014); https://doi.org/10.1117/12.2038465

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