Luminescent solar concentrators: a measurement technique for effective emitter screening

Bernhard Siegmund; Sigurd Mertens; Koen Vandewal

doi:10.1117/12.3017395

19 June 2024 Luminescent solar concentrators: a measurement technique for effective emitter screening

Bernhard Siegmund, Sigurd Mertens, Koen Vandewal

Proceedings Volume PC13013, Organic Electronics and Photonics: Fundamentals and Devices IV; PC130130B (2024) https://doi.org/10.1117/12.3017395
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Luminescent solar concentrators (LSC) are an attractive emerging concept for semi-transparent, building-integrated photovoltaics at low cost and weight. Hereby, large-area, luminescent wave-guide foils collect solar radiation, being harvested at the wave-guide’s edge by a small-size solar module. To further improve the performance of LSCs, emitter materials with photoluminescence quantum yields (PLQY) near-unity are required, as this minimizes losses due to photon re-absorption events. This presentation show-cases a highly sensitive approach to experimentally determine the PLQY of emitters, combining spectroscopic and photothermal techniques. Screening the PLQY of six emitter molecules in solution, we are able to measure a maximum value of 99.4% with an unprecedented precision down to ±0.3% – which is about ten times better than established techniques. This newly developed method will therefore contribute to the development of future highly efficient LSCs, which require emitters with extremely high PLQYs, well above 99%. We further show that such emitters can perform thermally assisted photon upconversion, illustrating their potential for optical refrigeration.

Conference Presentation

Citation Download Citation

Bernhard Siegmund, Sigurd Mertens, and Koen Vandewal "Luminescent solar concentrators: a measurement technique for effective emitter screening", Proc. SPIE PC13013, Organic Electronics and Photonics: Fundamentals and Devices IV, PC130130B (19 June 2024); https://doi.org/10.1117/12.3017395

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Quantum emitters

Solar concentrators

Photovoltaics

Quantum efficiency

Quantum optics experiments

Solar radiation

Spectroscopy

Show All Keywords

Keywords/Phrases

Search In:

Publication Years