Guideline for Efficiency Enhancement in Semi-Transparent Thin-Film Organic Photovoltaics with Dielectric Mirrors

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Bronnbauer C, Gasparini N, Brabec C, Forberich K
Zeitschrift: Advanced Optical Materials
Verlag: Wiley
Jahr der Veröffentlichung: 2016
Band: 4
Heftnummer: 7
Seitenbereich: 1098-1105
ISSN: 2195-1071
Sprache: Englisch


Abstract


Semi-transparent organic solar cells (ST-OSCs) show a unique potential to be integrated in windows due to their outstanding characteristics such as high transparency and color-adjustability. In order to achieve both, high transparency and high efficiency, the use of dielectric mirrors is an excellent concept. However, such a mirror will not only improve the photocurrent generated by a solar cell but also cause losses in transparency. In this work, a theoretical model is developed that predicts the effect of the dielectric mirror on the balance between photocurrent enhancement and transparency loss depending on the spectral shape of the ST-OSC absorption. Experimental investigations with three fully printed ST-OSCs showing different absorption characteristics underline the validity of these studies. It is concluded that ST-OSCs with broad absorption spectra ranging from the short wavelength region over the visible to at least 950 nm are most suitable for the implementation of a dielectric mirror. A narrower absorption spectrum or a shift of the spectrum toward longer wavelengths makes an increase in photoactive layer thickness more beneficial than the attachment of a dielectric mirror. Moreover, the dielectric mirror approach is an excellent strategy to obtain high photocurrents for materials which cannot be processed at high active layer thicknesses.



FAU-Autoren / FAU-Herausgeber

Brabec, Christoph Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Bronnbauer, Carina
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Forberich, Karen Dr.
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)
Gasparini, Nicola
Lehrstuhl für Werkstoffwissenschaften (Materialien der Elektronik und der Energietechnologie)


Zusätzliche Organisationseinheit(en)
Erlangen Graduate School in Advanced Optical Technologies
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Bronnbauer, C., Gasparini, N., Brabec, C., & Forberich, K. (2016). Guideline for Efficiency Enhancement in Semi-Transparent Thin-Film Organic Photovoltaics with Dielectric Mirrors. Advanced Optical Materials, 4(7), 1098-1105. https://dx.doi.org/10.1002/adom.201600080

MLA:
Bronnbauer, Carina, et al. "Guideline for Efficiency Enhancement in Semi-Transparent Thin-Film Organic Photovoltaics with Dielectric Mirrors." Advanced Optical Materials 4.7 (2016): 1098-1105.

BibTeX: 

Zuletzt aktualisiert 2018-19-11 um 13:50