Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte
Electrochromic devices can act as passive displays. They change their color when a low voltage is applied. Flexible and bendable hybrid textile-film electrochromic devices with poly-3,4-ethylenedioxythiophene polystyrene sulfonate (PEDOT:PSS) were prepared on polyethylene polyethylene terephthalate...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-10-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/19/5691 |
| _version_ | 1797551693188038656 |
|---|---|
| author | Carsten Graßmann Maureen Mann Lieva Van Langenhove Anne Schwarz-Pfeiffer |
| author_facet | Carsten Graßmann Maureen Mann Lieva Van Langenhove Anne Schwarz-Pfeiffer |
| author_sort | Carsten Graßmann |
| collection | DOAJ |
| description | Electrochromic devices can act as passive displays. They change their color when a low voltage is applied. Flexible and bendable hybrid textile-film electrochromic devices with poly-3,4-ethylenedioxythiophene polystyrene sulfonate (PEDOT:PSS) were prepared on polyethylene polyethylene terephthalate (PEPES) membranes using a spray coating technique. The electrolyte consisted of a gelatin glycerol mixture as host matrix and calcium chloride. Titanium dioxide was used as an ion storage layer and a carbon containing dispersion was used for the counter electrode on a polyester rip-stop fabric. The sheet resistance of PEDOT:PSS on PEPES was 500 Ohm/sq. A 5 × 5 electrochromic matrix with individually addressable pixels was successfully designed and assembled. The switching time of the pixels was 2 s at a voltage of 2.0 V directly after assembling. The use of titanium dioxide as ion storage also increased the contrast of the dark-blue reduced electrochromic layer. Coloration was not self-sustaining. The PEDOT:PSS layer needed a constant low voltage of at least 0.5 V to sustain in the dark-blue reduced state. The switching time increased with time. After 12 months the switching time was ~4 s at a voltage of 2.8 V. The addition of glycerol into the electrolyte extended the lifetime of a non-encapsulated textile electrochromic cell, because moisture is retained in the electrolyte. Charge carriers can be transported into and out of the electrochromic layer. |
| first_indexed | 2024-03-10T15:49:38Z |
| format | Article |
| id | doaj.art-4bd51a8a735b40419c7aec5627b7183a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T15:49:38Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4bd51a8a735b40419c7aec5627b7183a2023-11-20T16:09:38ZengMDPI AGSensors1424-82202020-10-012019569110.3390/s20195691Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled ElectrolyteCarsten Graßmann0Maureen Mann1Lieva Van Langenhove2Anne Schwarz-Pfeiffer3Research Institute for Textile and Clothing, Niederrhein University of Applied Sciences, 41065 Mönchengladbach, GermanyResearch Institute for Textile and Clothing, Niederrhein University of Applied Sciences, 41065 Mönchengladbach, GermanyCenter for Textile Science and Engineering, Ghent University, 9052 Ghent, Belgium Research Institute for Textile and Clothing, Niederrhein University of Applied Sciences, 41065 Mönchengladbach, GermanyElectrochromic devices can act as passive displays. They change their color when a low voltage is applied. Flexible and bendable hybrid textile-film electrochromic devices with poly-3,4-ethylenedioxythiophene polystyrene sulfonate (PEDOT:PSS) were prepared on polyethylene polyethylene terephthalate (PEPES) membranes using a spray coating technique. The electrolyte consisted of a gelatin glycerol mixture as host matrix and calcium chloride. Titanium dioxide was used as an ion storage layer and a carbon containing dispersion was used for the counter electrode on a polyester rip-stop fabric. The sheet resistance of PEDOT:PSS on PEPES was 500 Ohm/sq. A 5 × 5 electrochromic matrix with individually addressable pixels was successfully designed and assembled. The switching time of the pixels was 2 s at a voltage of 2.0 V directly after assembling. The use of titanium dioxide as ion storage also increased the contrast of the dark-blue reduced electrochromic layer. Coloration was not self-sustaining. The PEDOT:PSS layer needed a constant low voltage of at least 0.5 V to sustain in the dark-blue reduced state. The switching time increased with time. After 12 months the switching time was ~4 s at a voltage of 2.8 V. The addition of glycerol into the electrolyte extended the lifetime of a non-encapsulated textile electrochromic cell, because moisture is retained in the electrolyte. Charge carriers can be transported into and out of the electrochromic layer.https://www.mdpi.com/1424-8220/20/19/5691smart textileflexible devicepassive displaymultilayer matrix structuregelatin electrolytealginate |
| spellingShingle | Carsten Graßmann Maureen Mann Lieva Van Langenhove Anne Schwarz-Pfeiffer Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte Sensors smart textile flexible device passive display multilayer matrix structure gelatin electrolyte alginate |
| title | Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte |
| title_full | Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte |
| title_fullStr | Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte |
| title_full_unstemmed | Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte |
| title_short | Textile Based Electrochromic Cells Prepared with PEDOT: PSS and Gelled Electrolyte |
| title_sort | textile based electrochromic cells prepared with pedot pss and gelled electrolyte |
| topic | smart textile flexible device passive display multilayer matrix structure gelatin electrolyte alginate |
| url | https://www.mdpi.com/1424-8220/20/19/5691 |
| work_keys_str_mv | AT carstengraßmann textilebasedelectrochromiccellspreparedwithpedotpssandgelledelectrolyte AT maureenmann textilebasedelectrochromiccellspreparedwithpedotpssandgelledelectrolyte AT lievavanlangenhove textilebasedelectrochromiccellspreparedwithpedotpssandgelledelectrolyte AT anneschwarzpfeiffer textilebasedelectrochromiccellspreparedwithpedotpssandgelledelectrolyte |