- AutorIn
- F. Lungwitz
- R. Escobar-Galindo
- D. Janke
- E. Schumann
- R. Wenisch
- S. Gemming
- M. Krause
- Titel
- Transparent Conductive Tantalum Doped Tin Oxide as Selectively Solar-Transmitting Coating for High Temperature Solar Thermal Applications
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:d120-qucosa2-339253
- Quellenangabe
- Solar Energy Materials and Solar Cells Verlag: Elsevier
Erscheinungsjahr: 2019
Jahrgang: 196
Seiten: 84-93
DOI: 10.1016/j.solmat.2019.03.012 - Abstract (EN)
- The transparent conductive oxide (TCO) SnO2:Ta is developed as a selectively solar-transmitting coating for concentrated solar power (CSP) absorbers. Upon covering with an antireflective layer, a calculated absorptivity of 95% and an emissivity of 30% are achieved for the model configuration of SnO2:Ta on top of a perfect black body (BB). High-temperature stability of the developed TCO up to 1073 K is shown in situ by spectroscopic ellipsometry and Rutherford backscattering spectrometry. The universality of the concept is demonstrated by transforming silicon and glassy carbon from non-selective into solar-selective absorbers by depositing the TCO on top of them. Finally, the energy conversion efficiencies of SnO2:Ta on top of a BB and an ideal non-selective BB absorber are extensively compared as a function of solar concentration factor C and absorber temperature TH. Equal CSP efficiencies can be achieved by the TCO on BB configuration with approximately 50% lower solar concentration. This improvement could be used to reduce the number of mirrors in a solar plant, and thus, the levelized costs of electricity for CSP technology.
- Freie Schlagwörter (EN)
- concentrated solar power, solar thermal electricity, solar-selective transmitter, transparent conductive oxide, high-temperature in situ characterization
- URN Qucosa
- urn:nbn:de:bsz:d120-qucosa2-339253
- Veröffentlichungsdatum Qucosa
- 07.05.2019
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch