A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films
α-4T thin films of various thicknesses are prepared by thermal evaporation method. The electrical conductivity (σ) of as deposited α-4T thin films of thicknesses 50 nm, 100 nm and 200 nm have been measured using Hall measurement system (HMS). Using the measured values of conductivity and energy gap,...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2018-02-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5010251 |
| _version_ | 1819081072670932992 |
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| author | V. Sasidharan Divya K. Nair C. M. Joseph C. S. Menon K. Shreekrishna Kumar |
| author_facet | V. Sasidharan Divya K. Nair C. M. Joseph C. S. Menon K. Shreekrishna Kumar |
| author_sort | V. Sasidharan |
| collection | DOAJ |
| description | α-4T thin films of various thicknesses are prepared by thermal evaporation method. The electrical conductivity (σ) of as deposited α-4T thin films of thicknesses 50 nm, 100 nm and 200 nm have been measured using Hall measurement system (HMS). Using the measured values of conductivity and energy gap, the constant σ0 has been estimated for thin films of various thicknesses. Thus, the electrical conductivity of the thin films of 50 nm, 100 nm and 200 nm have been estimated for various temperatures (T). Ln (σ) vs. 1000/T plots for thin films of various thicknesses have been drawn. The conductivity is found to decrease with increase in thickness of the thin film, as it changes from 50 nm to 200 nm. |
| first_indexed | 2024-12-21T19:54:58Z |
| format | Article |
| id | doaj.art-792f281f9f1c4739a6b799b9e2424dd9 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-21T19:54:58Z |
| publishDate | 2018-02-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-792f281f9f1c4739a6b799b9e2424dd92022-12-21T18:52:07ZengAIP Publishing LLCAIP Advances2158-32262018-02-0182025120025120-410.1063/1.5010251058802ADVA new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin filmsV. Sasidharan0Divya K. Nair1C. M. Joseph2C. S. Menon3K. Shreekrishna Kumar4School of Technology and Applied Sciences, Mahatma Gandhi University, Pullarikunnu Campus, Malloosserry P.O., Kottayam, Kerala 686041, IndiaSchool of Technology and Applied Sciences, Mahatma Gandhi University, Pullarikunnu Campus, Malloosserry P.O., Kottayam, Kerala 686041, IndiaDayananda Sagar College of Engineering, Kumaraswamy Layout, Bangalore, Karnataka 560 078, IndiaSchool of Pure and Applied Physics, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala 686 560, IndiaSchool of Technology and Applied Sciences, Mahatma Gandhi University, Pullarikunnu Campus, Malloosserry P.O., Kottayam, Kerala 686041, Indiaα-4T thin films of various thicknesses are prepared by thermal evaporation method. The electrical conductivity (σ) of as deposited α-4T thin films of thicknesses 50 nm, 100 nm and 200 nm have been measured using Hall measurement system (HMS). Using the measured values of conductivity and energy gap, the constant σ0 has been estimated for thin films of various thicknesses. Thus, the electrical conductivity of the thin films of 50 nm, 100 nm and 200 nm have been estimated for various temperatures (T). Ln (σ) vs. 1000/T plots for thin films of various thicknesses have been drawn. The conductivity is found to decrease with increase in thickness of the thin film, as it changes from 50 nm to 200 nm.http://dx.doi.org/10.1063/1.5010251 |
| spellingShingle | V. Sasidharan Divya K. Nair C. M. Joseph C. S. Menon K. Shreekrishna Kumar A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films AIP Advances |
| title | A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films |
| title_full | A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films |
| title_fullStr | A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films |
| title_full_unstemmed | A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films |
| title_short | A new theoretical technique to study the temperature variation of electrical conductivity as applied to α-quaterthiophene (α-4T) thin films |
| title_sort | new theoretical technique to study the temperature variation of electrical conductivity as applied to α quaterthiophene α 4t thin films |
| url | http://dx.doi.org/10.1063/1.5010251 |
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