Flexible cobalt-phthalocyanine thin films with high charge carrier mobility
- Technical Physics Division, Bhabha Atomic Research Center, Mumbai 400 085 (India)
- Universite Paris Diderot, Sorbonne Paris Cite, ITODYS, UMR 7086, CNRS F-75013 Paris (France)
The structural and charge transport characteristics of cobalt phthalocyanine (CoPc) films deposited on flexible bi-axially oriented polyethylene terephthalate (BOPET) substrates are investigated. CoPc films exhibited a preferential (200) orientation with charge carrier mobility of {approx}118 cm{sup 2} V{sup -1} s{sup -1} (at 300 K). These films exhibited a reversible resistance changes upon bending them to different radius of curvature. The charge transport in CoPc films is governed by a bias dependent crossover from ohmic (J-V) to trap-free space-charge limited conduction (J-V{sup 2}). These results demonstrate that CoPc films on flexible BOPET having high mobility and high mechanical flexibility are a potential candidate for flexible electronic devices.
- OSTI ID:
- 22089527
- Journal Information:
- Applied Physics Letters, Vol. 101, Issue 22; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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