Tetrathiotetracene thin film morphology and electrical properties
The electrical properties of organic thin films are determined by their chemical constituents and the morphology of the films deposited. In this paper the morphology of vacuum sublimed (7∙10-6 mbar) tetrathiotetracene (TTT) thin films is shown to be strongly affected by the thermal deposition temper...
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/31087/ |
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| author | Pudzs, K. Vembris, A. Busenbergs, J. Rutkis, M. Woodward, Simon |
| author_facet | Pudzs, K. Vembris, A. Busenbergs, J. Rutkis, M. Woodward, Simon |
| author_sort | Pudzs, K. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The electrical properties of organic thin films are determined by their chemical constituents and the morphology of the films deposited. In this paper the morphology of vacuum sublimed (7∙10-6 mbar) tetrathiotetracene (TTT) thin films is shown to be strongly affected by the thermal deposition temperature (222-350 K) and rate of deposition. Mostly needle-like morphologies are identified by scanning electron microscopy. Optimal TTT purity (a pre-requisite for device preparation via subsequent oxidation) is evidenced by their initially low electrical conductivity. Altering the TTT morphology, by variation of the evaporation parameters, strongly affects this base electrical conductivity. Four probe conductivity measurements and charge extraction by linear increasing voltage methods are used to characterize film electrical properties. In-plane conductivity of up to 7.03∙10-5 S/cm is achieved for pure TTT thin films. Subsequent aerial oxidation resulted in a 3.4-fold increase in electrical conductivity. |
| first_indexed | 2025-11-14T19:11:13Z |
| format | Article |
| id | nottingham-31087 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:11:13Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-310872020-05-04T17:27:08Z https://eprints.nottingham.ac.uk/31087/ Tetrathiotetracene thin film morphology and electrical properties Pudzs, K. Vembris, A. Busenbergs, J. Rutkis, M. Woodward, Simon The electrical properties of organic thin films are determined by their chemical constituents and the morphology of the films deposited. In this paper the morphology of vacuum sublimed (7∙10-6 mbar) tetrathiotetracene (TTT) thin films is shown to be strongly affected by the thermal deposition temperature (222-350 K) and rate of deposition. Mostly needle-like morphologies are identified by scanning electron microscopy. Optimal TTT purity (a pre-requisite for device preparation via subsequent oxidation) is evidenced by their initially low electrical conductivity. Altering the TTT morphology, by variation of the evaporation parameters, strongly affects this base electrical conductivity. Four probe conductivity measurements and charge extraction by linear increasing voltage methods are used to characterize film electrical properties. In-plane conductivity of up to 7.03∙10-5 S/cm is achieved for pure TTT thin films. Subsequent aerial oxidation resulted in a 3.4-fold increase in electrical conductivity. Elsevier 2015-12-11 Article PeerReviewed Pudzs, K., Vembris, A., Busenbergs, J., Rutkis, M. and Woodward, Simon (2015) Tetrathiotetracene thin film morphology and electrical properties. Thin Solid Thins, 598 . pp. 214-218. ISSN 0040-6090 tetrathiotetracene; thin film; electrical conductivity; morphology http://www.sciencedirect.com/science/article/pii/S0040609015012730 doi:10.1016/j.tsf.2015.11.087 doi:10.1016/j.tsf.2015.11.087 |
| spellingShingle | tetrathiotetracene; thin film; electrical conductivity; morphology Pudzs, K. Vembris, A. Busenbergs, J. Rutkis, M. Woodward, Simon Tetrathiotetracene thin film morphology and electrical properties |
| title | Tetrathiotetracene thin film morphology and electrical properties |
| title_full | Tetrathiotetracene thin film morphology and electrical properties |
| title_fullStr | Tetrathiotetracene thin film morphology and electrical properties |
| title_full_unstemmed | Tetrathiotetracene thin film morphology and electrical properties |
| title_short | Tetrathiotetracene thin film morphology and electrical properties |
| title_sort | tetrathiotetracene thin film morphology and electrical properties |
| topic | tetrathiotetracene; thin film; electrical conductivity; morphology |
| url | https://eprints.nottingham.ac.uk/31087/ https://eprints.nottingham.ac.uk/31087/ https://eprints.nottingham.ac.uk/31087/ |