Quantitative Characterization of Optical Coupling in Nanoporous ZnO–WO3 and ZnO–PEDOT Composite Electrodeposited Gratings Using Electrodiffraction Measurements
| Autor: | Robert M. Corn, Han Wai Millie Fung, Seulgi So, Kellen Kartub |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry High-refractive-index polymer Nanoporous 02 engineering and technology Grating 010402 general chemistry 021001 nanoscience & nanotechnology Tin oxide 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials General Energy PEDOT:PSS Electrochromism Optoelectronics Physical and Theoretical Chemistry Thin film 0210 nano-technology business Refractive index |
| Zdroj: | The Journal of Physical Chemistry C. 123:762-769 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.8b08072 |
| Popis: | To quantitatively characterize the optical coupling between ZnO (a high refractive index but nonabsorptive material) and an electrochromic material (either tungsten oxide (WO3) or poly(3,4-ethylenedioxythiophene) (PEDOT)), electrodiffractive and electrochromic properties were investigated from a novel two-component composite nanostructured electrodeposited grating that incorporated both ZnO and either WO3 or PEDOT. The sequential electrodeposition of these two materials through a photopatterned photoresist layer onto a fluorine-doped tin oxide (FTO)-coated glass substrate created a grating structure that exhibited optical diffraction that could be modulated electrochemically. SEM images of the electrochromic gratings revealed that the ZnO electrodeposition created a high surface area nanostructured thin film. The nanostructured ZnO is nonabsorbing, but its high refractive index and large surface area redirect light into the electrochromic grating and create a 4-fold enhancement in the grating’s electrodif... |
| Databáze: | OpenAIRE |
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