| Autor: |
Ritu Nain, Love Bansal, P R Sagdeo, Rajesh Kumar |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Nano Express, Vol 5, Iss 2, p 025016 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2632-959X |
| DOI: |
10.1088/2632-959X/ad4795 |
| Popis: |
Exploring new materials and synthesis recipes are required to enhance the electrochromic performance especially, when used in solid-state devices. Here, polycrystalline gadolinium titanate (Gd _2 TiO _5 or GTO), synthesized using a simple solid-state reaction method, has been used for this purpose by combining it with polythiophene (P3HT). The electrochemical investigation of the Gd _2 TiO _5 doped P3HT electrode has been carried out using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), which reveals the dominance of diffusion-controlled mechanism over charge storage on the electrode surface as compared to the P3HT electrode. The Gd _2 TiO _5 doped P3HT solid-state electrochromic device shows color modulation at 515 nm and 670 nm wavelengths with a color contrast of as high as 79% and 42%, respectively, under an external bias of as low as ±1.4 V. The prepared device switches between maroon to a transparent state in less than a second under the external bias (±1.4 V) with a high coloration efficiency of 346 cm ^2 /C. The device shows improved cycle life over 100 switching cycles at both the wavelengths, which makes it more suitable for real-life applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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