Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

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.

[img]
Preview
PDF (Gupta-etal-MRSSM-2012-Optimizing-pentacene-growth-in-low-voltage-organic-thin-film)
Gupta_etal_MRSSM_2012_Optimizing_pentacene_growth_in_low_voltage_organic_thin_film.pdf - Accepted Author Manuscript

Download (323kB) | Preview

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.