Title

Enhancing charge transport in copper phthalocyanine thin film by elevating pressure of deposition chamber

RIS ID

108718

Publication Details

Liu, Q., Li, Y., Wang, X., Huang, W., Ma, J., Li, Y., Shi, Y., Wang, X. & Hu, Z. (2014). Enhancing charge transport in copper phthalocyanine thin film by elevating pressure of deposition chamber. Organic Electronics, 15 (8), 1799-1804.

Abstract

Copper phthalocyanine (CuPc)-based thin film transistors were fabricated using CuPc films grown under different deposition pressure (Pdep) (ranging from 1.8 x 10-4 Pa to 1.0 x 10-1 Pa). The transistor performance highly depended on Pdep. A field-effect mobility of 2.1 x 10-2 cm2/(V s) was achieved under 1.0 x 10-1 Pa. Detailed investigations revealed that P dep modulates the molecular packing and orientation of the organic films grown on a SiO2/Si substrate and influences the charge transport. Furthermore, from a device physics point of view, contact resistance of the fabricated transistors decreased when Pdep increased, which was beneficial in reducing energy consumption.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.orgel.2014.05.010