HARRICK PLASMA

Vapor Phase Growth of Bismuth Telluride Nanoplatelets on Flexible Polyimide Films

We report the growth of bismuth telluride, Bi2Te3, nanoplatelets on flexible polyimide films (Kapton films), using a chemical vapor transport process. Hexagonal, triangular, and ribbon-shaped nanoplatelets can be routinely synthesized on Kapton films. We developed a dry transfer technique to transfer these as-grown nanoplatelets from the Kapton films onto SiO2(300 nm)/Si substrates for atomic force microscopy (AFM) characterization. The thickness of the as-grown nanoplatelets is 10-100 nm, and thinner than those grown on glass and silicon susbtrates. We further suggest the possible growth mechanism based on our AFM obervations.

Guo, L., B. C. Ivey, A. Aglan, C. Tang, J. Song, C. H. Turner, R. M. Frazier, A. Gupta, H.-T. Wang

ECS Solid State Letters

2

P19-P21

2012

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