Highly efficient solar-heat shield based on the bipolaron-assisted PEDOT:PSS thin film
| Autor: | Diksha Thakur, Jui-Ming Yeh, Sheng Hsiung Chang, Anjali Chandel, Jia-Ren Wu, Shih-Yao Liu, Hsin-Ming Cheng, Dian Luo, Pei-Chen Lin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Bipolaron Materials science business.industry Doping General Physics and Astronomy Polymer 01 natural sciences 010305 fluids & plasmas Condensed Matter::Soft Condensed Matter chemistry PEDOT:PSS 0103 physical sciences Optoelectronics Molecule Thin film 010306 general physics business Absorption (electromagnetic radiation) Refractive index |
| Zdroj: | Chinese Journal of Physics. 66:102-108 |
| ISSN: | 0577-9073 |
| DOI: | 10.1016/j.cjph.2020.05.005 |
| Popis: | We report on an efficient solar-heat shield based on the highly transparent PEDOT:PSS thin film, which significantly reduces the temperature from 38.2 C to 33.5 C. To understand the superior solar-heat shielding ability, the modified PEDOT:PSS thin films were investigated by using the transmittance spectra, Raman scattering spectra, atomic-force microscopic (AFM) images and broadband refractive index spectra. The experimental results show that the molecular structure of the PEDOT chains can be manipulated by varying the Brownian motion of PEDOT polymers in the PEDOT:PSS solutions and the spin rate. The lower Brownian motion of PEDOT polymers and the higher spin rate both can change the molecular structure of the PEDOT chains from bended structures (de-doping states) to linear structures (doping states), which simultaneously increase the near-infrared absorption strength and the visible transparency due to the formation of bipolarons. |
| Databáze: | OpenAIRE |
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