Electronic and Optically controlled Bi-functional Transistor based on Bio-Nano Hybrid Complex
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2019
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| _version_ | 1866914935205789696 |
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| author | Bakaraju, Vikram Prasad, Senthil Meena, Brijesh Chaturvedi, Harsh |
| author_facet | Bakaraju, Vikram Prasad, Senthil Meena, Brijesh Chaturvedi, Harsh |
| contents | We report optically as well as electronically controlled, bio-electronic field-effect transistor (FET) based on the hybrid film of a photo-active purple membrane and electronically conducting single-walled carbon nanotubes (SWNTs). Two dimensional (2D) crystal of bacteriorhodopsin forms the photoactive center of the bio-nano complex, whereas one dimensional (1D) pure SWNTs provides the required electronic support. The hybrid structure shows a conductivity of 19 microS/m and semiconducting characteristics due to preferential binding with selective diameters of semiconducting SWNTs only. The bio-electronic transistor fabricated using direct laser lithography shows photoconductivity of 13.15 microS/m and well-controlled optical and electronic gating with a significant On/Off switch ratio of 8.5. The device demonstrates well-synchronized electronic and optical gating wherein, n-type FET shows complementary p-type characteristics due to optically controlled proton-pumping by bacteriorhodopsin. Fabricated bio-electronic transistor displays both electronically and optically well-controlled, bi-functionality. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1910_06254 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Electronic and Optically controlled Bi-functional Transistor based on Bio-Nano Hybrid Complex Bakaraju, Vikram Prasad, Senthil Meena, Brijesh Chaturvedi, Harsh Applied Physics Mesoscale and Nanoscale Physics We report optically as well as electronically controlled, bio-electronic field-effect transistor (FET) based on the hybrid film of a photo-active purple membrane and electronically conducting single-walled carbon nanotubes (SWNTs). Two dimensional (2D) crystal of bacteriorhodopsin forms the photoactive center of the bio-nano complex, whereas one dimensional (1D) pure SWNTs provides the required electronic support. The hybrid structure shows a conductivity of 19 microS/m and semiconducting characteristics due to preferential binding with selective diameters of semiconducting SWNTs only. The bio-electronic transistor fabricated using direct laser lithography shows photoconductivity of 13.15 microS/m and well-controlled optical and electronic gating with a significant On/Off switch ratio of 8.5. The device demonstrates well-synchronized electronic and optical gating wherein, n-type FET shows complementary p-type characteristics due to optically controlled proton-pumping by bacteriorhodopsin. Fabricated bio-electronic transistor displays both electronically and optically well-controlled, bi-functionality. |
| title | Electronic and Optically controlled Bi-functional Transistor based on Bio-Nano Hybrid Complex |
| topic | Applied Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/1910.06254 |