A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films
We report a fast-switching negative photoelectrochromic cell composed of a dye-sensitized nanocrystalline TiO2 electrode and Prussian blue counter electrode sandwiching a LiI electrolyte. The cell can be bleached under illumination with shorted TiO2 and Prussian blue electrodes, and re-colored by ap...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/96637 http://hdl.handle.net/10220/10329 |
| _version_ | 1826112855746805760 |
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| author | Jiao, Zhihui Song, Jun Ling Sun, Xiaowei Liu, Xue-Wei Wang, Jinmin Ke, Lin Demir, Hilmi Volkan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Jiao, Zhihui Song, Jun Ling Sun, Xiaowei Liu, Xue-Wei Wang, Jinmin Ke, Lin Demir, Hilmi Volkan |
| author_sort | Jiao, Zhihui |
| collection | NTU |
| description | We report a fast-switching negative photoelectrochromic cell composed of a dye-sensitized nanocrystalline TiO2 electrode and Prussian blue counter electrode sandwiching a LiI electrolyte. The cell can be bleached under illumination with shorted TiO2 and Prussian blue electrodes, and re-colored by applying an appropriate external voltage. The photo-bleaching and electric-coloring processes are fast and reversible. A maximum absorbance modulation of 0.44 recorded at 700 nm is obtained between bleached and colored states for the cell when the PB film's thickness is 452 nm. Illuminated under different levels of light intensity or durations of time, the shorted cell shows adjustable optical absorption from 470 to 840 nm. The in-situ transmittance response depicts that the photo-bleaching response is 6.2 s for 70% transmittance change under 100 mW/cm2 illumination in short circuit configuration, and the re-coloration time is about 600 ms under 2 V bias recorded at 780 nm, with an electrochromic coloration efficiency of 103.4 cm2/C. The cell shows a good reversible stability and can be potentially applied in erasable displays. |
| first_indexed | 2024-10-01T03:13:56Z |
| format | Journal Article |
| id | ntu-10356/96637 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:13:56Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/966372020-03-07T12:34:43Z A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films Jiao, Zhihui Song, Jun Ling Sun, Xiaowei Liu, Xue-Wei Wang, Jinmin Ke, Lin Demir, Hilmi Volkan School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences DRNTU::Engineering::Electrical and electronic engineering We report a fast-switching negative photoelectrochromic cell composed of a dye-sensitized nanocrystalline TiO2 electrode and Prussian blue counter electrode sandwiching a LiI electrolyte. The cell can be bleached under illumination with shorted TiO2 and Prussian blue electrodes, and re-colored by applying an appropriate external voltage. The photo-bleaching and electric-coloring processes are fast and reversible. A maximum absorbance modulation of 0.44 recorded at 700 nm is obtained between bleached and colored states for the cell when the PB film's thickness is 452 nm. Illuminated under different levels of light intensity or durations of time, the shorted cell shows adjustable optical absorption from 470 to 840 nm. The in-situ transmittance response depicts that the photo-bleaching response is 6.2 s for 70% transmittance change under 100 mW/cm2 illumination in short circuit configuration, and the re-coloration time is about 600 ms under 2 V bias recorded at 780 nm, with an electrochromic coloration efficiency of 103.4 cm2/C. The cell shows a good reversible stability and can be potentially applied in erasable displays. 2013-06-13T04:39:17Z 2019-12-06T19:33:14Z 2013-06-13T04:39:17Z 2019-12-06T19:33:14Z 2011 2011 Journal Article Jiao, Z., Song, J. L., Sun, X., Liu, X. W., Wang, J. M., Ke, L., et al. (2012). A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films. Solar Energy Materials and Solar Cells, 98, 154-160. 0927-0248 https://hdl.handle.net/10356/96637 http://hdl.handle.net/10220/10329 10.1016/j.solmat.2011.10.030 en Solar energy materials and solar cells © 2011 Elsevier B.V. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Jiao, Zhihui Song, Jun Ling Sun, Xiaowei Liu, Xue-Wei Wang, Jinmin Ke, Lin Demir, Hilmi Volkan A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title | A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title_full | A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title_fullStr | A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title_full_unstemmed | A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title_short | A fast-switching light-writable and electric-erasable negative photoelectrochromic cell based on Prussian blue films |
| title_sort | fast switching light writable and electric erasable negative photoelectrochromic cell based on prussian blue films |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/96637 http://hdl.handle.net/10220/10329 |
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