Optimizing pentacene growth in low-voltage organic thin-film transistors prepared by dry fabrication techniques

Gupta, Swati and Chinnam, Krishna Chytanya and Zelzer, Mischa and Ulijn, Rein and Gleskova, Helena (2012) Optimizing pentacene growth in low-voltage organic thin-film transistors prepared by dry fabrication techniques. In: 2012 Materials Research Society Spring Meeting - Symposium J – Organic and Hybrid-Organic Electronics. MRS Symposium Proceedings, 1435 . Materials Research Society.

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    Abstract

    We have studied the effect of pentacene purity and evaporation rate on low-voltage organic thin-film transistors (OTFTs) prepared solely by dry fabrication techniques. The maximum field-effect mobility of 0.07 cm2/Vs was achieved for the highest pentacene evaporation rate of 0.32 Å/s and four-time purified pentacene. Four-time purified pentacene also led to the lowest threshold voltage of -1.1 V and inverse subthreshold slope of ~100 mV/decade. In addition, pentacene surface was imaged using atomic force microscopy, and the transistor channel and contact resistances for various pentacene evaporation rates were extracted and compared to field-effect mobilities.

    Author(s):Gupta, Swati, Chinnam, Krishna Chytanya, Zelzer, Mischa, Ulijn, Rein ORCID logoORCID: https://orcid.org/0000-0001-7974-3779 and Gleskova, Helena ORCID logoORCID: https://orcid.org/0000-0001-7195-9639
    Item type:Book Section
    ID code:40091
    Keywords:organic thin-film transistor , dry fabrication , pentacene growth, Electrical engineering. Electronics Nuclear engineering, Physical and theoretical chemistry
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Science > Chemistry > Physical and theoretical chemistry
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Faculty of Science > Pure and Applied Chemistry
    Technology and Innovation Centre > Bionanotechnology
    Depositing user: Pure Administrator
    Date deposited:20 Jun 2012 13:48
    Last modified:01 Nov 2019 04:41
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/40091
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