Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode
Abstract The authors demonstrate how a simple step of loading an electrochromically active Prussian blue (PB; an ionic solid) electrode with Li+ ions can help in achieving a more efficient viologen based solid state hybrid electrochromic device. To accomplish this, two different devices, with and wi...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-12-01
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| Series: | IET Nanodielectrics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/nde2.12015 |
| _version_ | 1828383414827352064 |
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| author | Anjali Chaudhary Devesh K. Pathak Manushree Tanwar Suchita Kandpal Tanushree Ghosh Chanchal Rani Rajesh Kumar |
| author_facet | Anjali Chaudhary Devesh K. Pathak Manushree Tanwar Suchita Kandpal Tanushree Ghosh Chanchal Rani Rajesh Kumar |
| author_sort | Anjali Chaudhary |
| collection | DOAJ |
| description | Abstract The authors demonstrate how a simple step of loading an electrochromically active Prussian blue (PB; an ionic solid) electrode with Li+ ions can help in achieving a more efficient viologen based solid state hybrid electrochromic device. To accomplish this, two different devices, with and without Li+ ion loaded PB electrodes, have been fabricated. These devices have been compared in terms of their current‐voltage response, bias dependent optical modulation and corresponding colour switching to establish the role of Li+ ion in charge transport and charge balancing involved during bias induced redox mediated colour switching of the two devices. The Li+ containing PB electrode device exhibits a superior performance with twice (40%) the value of colour contrast (20%), quick response switching (1.3 s), excellent stability (8400 s) and better power efficiency as compared to the device containing as‐synthesised PB electrode. A mechanism has been proposed to explain the role of the Li+ ion which is later substantiated using bias‐dependent in situ Raman spectroscopic evidences. |
| first_indexed | 2024-12-10T04:48:42Z |
| format | Article |
| id | doaj.art-443bca21a97c4ef6917f43aeb961b9fd |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-12-10T04:48:42Z |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-443bca21a97c4ef6917f43aeb961b9fd2022-12-22T02:01:41ZengWileyIET Nanodielectrics2514-32552021-12-014419320010.1049/nde2.12015Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrodeAnjali Chaudhary0Devesh K. Pathak1Manushree Tanwar2Suchita Kandpal3Tanushree Ghosh4Chanchal Rani5Rajesh Kumar6Materials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaMaterials and Device Laboratory Department of Physics Indian Institute of Technology Indore Simrol IndiaAbstract The authors demonstrate how a simple step of loading an electrochromically active Prussian blue (PB; an ionic solid) electrode with Li+ ions can help in achieving a more efficient viologen based solid state hybrid electrochromic device. To accomplish this, two different devices, with and without Li+ ion loaded PB electrodes, have been fabricated. These devices have been compared in terms of their current‐voltage response, bias dependent optical modulation and corresponding colour switching to establish the role of Li+ ion in charge transport and charge balancing involved during bias induced redox mediated colour switching of the two devices. The Li+ containing PB electrode device exhibits a superior performance with twice (40%) the value of colour contrast (20%), quick response switching (1.3 s), excellent stability (8400 s) and better power efficiency as compared to the device containing as‐synthesised PB electrode. A mechanism has been proposed to explain the role of the Li+ ion which is later substantiated using bias‐dependent in situ Raman spectroscopic evidences.https://doi.org/10.1049/nde2.12015Raman spectraelectrochromic devicesreduction (chemical)oxidationorganic compoundselectrochromism |
| spellingShingle | Anjali Chaudhary Devesh K. Pathak Manushree Tanwar Suchita Kandpal Tanushree Ghosh Chanchal Rani Rajesh Kumar Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode IET Nanodielectrics Raman spectra electrochromic devices reduction (chemical) oxidation organic compounds electrochromism |
| title | Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode |
| title_full | Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode |
| title_fullStr | Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode |
| title_full_unstemmed | Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode |
| title_short | Improved ionic solid/viologen hybrid electrochromic device using pre‐bleached Prussian‐blue electrode |
| title_sort | improved ionic solid viologen hybrid electrochromic device using pre bleached prussian blue electrode |
| topic | Raman spectra electrochromic devices reduction (chemical) oxidation organic compounds electrochromism |
| url | https://doi.org/10.1049/nde2.12015 |
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