Base-catalyzed synthesis of superhydrophobic and antireflective films for enhanced photoelectronic applications
| Autor: | Yi Xie, Junwu Chen, Xiujian Zhao, Abdelaal S.A. Ahmed, Chen Zhi, Shefiu Kareem, Yanxi Ding, Fen Qiao, Tan Li, Emmanuel Acheampong Tsiwah |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Materials science Base (chemistry) NaOH Colloidal silica Nanoparticle 02 engineering and technology 01 natural sciences Catalysis law.invention Biomaterials Contact angle law 0103 physical sciences Transmittance lcsh:Mining engineering. Metallurgy 010302 applied physics chemistry.chemical_classification Superhydrophobic film Energy conversion efficiency Metals and Alloys Transparent film 021001 nanoscience & nanotechnology Surfaces Coatings and Films Photovoltaics Anti-reflective coating chemistry Chemical engineering Ceramics and Composites Antireflective film 0210 nano-technology |
| Zdroj: | Journal of Materials Research and Technology, Vol 9, Iss 3, Pp 3958-3966 (2020) |
| ISSN: | 2238-7854 |
| Popis: | In this work, a facile, cost-effective and environmentally friendly approach is developed to synthesize transparent silica sol for fabricating antireflective (AR) and superhydrophobic (SH) films on soda–lime glass. The transparent silica sol is prepared at room temperature by modification of hexamethyl disilazane (HMDS) on colloidal silica nanoparticles (NPs) which are synthesized via base-catalyzed hydrolysis of tetraethoxysilane (TEOS) in the presence of ammonia-free alkaline solution (i.e., NaOH). The AR and SH silica films are then achieved by dip-coating. The average transmittance, water static contact angle (CA) and sliding angle (SA) of the resulting film can reach 93.1%, 169.7° and 3.0°, respectively, exhibiting both AR and SH properties. In particular, the excellent SH and AR properties of the resulting film facilitate not only the excellent self-cleaning performance but also the increasing light transmittance and thus an enhanced power conversion efficiency (PCE) in photovoltaic module. |
| Databáze: | OpenAIRE |
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