E-resources
Peer reviewed
-
Roslizar, Aiman; Dottermusch, Stephan; Vüllers, Felix; Kavalenka, Maryna N.; Guttmann, Markus; Schneider, Marc; Paetzold, Ulrich W.; Hölscher, Hendrik; Richards, Bryce S.; Klampaftis, Efthymios
Solar energy materials and solar cells, January 2019, 2019-01-00, 20190101, Volume: 189Journal Article
The soiling of photovoltaic (PV) modules can significantly reduce their energy yield unless a mitigation strategy is employed. One solution investigated in this work involves the implementation of a passive self-cleaning superhydrophobic top cover. To this end, superhydrophobicity was induced by hot-embossing random microtextures on a highly transmissive and photostable fluorinated ethylene propylene (FEP) film. The impact of fabrication parameters (hot-embossing force and temperature) on achieving high contact angles (> 150°) and low roll-off angles (< 10°), which characterizes a surface as superhydrophobic, were investigated. It was found that a minimum threshold force of at least 15 kN and 5 kN must be used to achieve superhydrophobicity for processing temperatures of 270 °C and 280 °C respectively. Meanwhile at the highest investigated temperature of 290 °C, any force within the investigated range of 500 N to 50 kN suffices. The best fabrication parameters were identified (5 kN at 280 °C), resulting in a contact angle of 156 ± 1° and a roll-off angle of 8 ± 3°. When incorporated into a silicon PV mini-module, the addition of the textured FEP film enhances the short circuit current density (JSC) by 1.1%. Moreover, the self-cleaning properties of the textured FEP films result in a recovery ratio of 93.6% (in terms of JSC), which is significantly greater than that of the reference glass encapsulated PV mini-module (61.1%). Display omitted •Random microtextures produce highly transmissive and superhydrophobic FEP surface.•Minimum threshold force to achieve superhydrophobicity identified (5 kN).•Easier to obtain superhydrophobicity at higher fabrication temperatures.•Relative 1.1% enhancement of power conversion efficiency of PV modules.•Self-cleaning recovery of 93.6% in terms of JSC achieved with best case sample.
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.