Detailed balance efficiencies for luminescent solar concentrators with aligned semiconductor nanorods (Conference Presentation)

Matthew T. Sheldon

doi:10.1117/12.2323215

18 September 2018 Detailed balance efficiencies for luminescent solar concentrators with aligned semiconductor nanorods (Conference Presentation)

Matthew T. Sheldon

Author Affiliations +

Proceedings Volume 10759, New Concepts in Solar and Thermal Radiation Conversion and Reliability; 107590Z (2018) https://doi.org/10.1117/12.2323215
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

The highest efficiency solar cells are also excellent optical emitters. Band edge luminescence results when no other loss mechanisms compete with power conversion, allowing an ideal maximum efficiency of 33.7%. Constraining the angular range of emitted light, in order to promote light trapping and photon recycling within the semiconductor, increases this maximum to 45.1%. By analogy, here we show how a strategy for integrating highly luminescent aligned semiconductor rod-shaped nanocrystals (nanorods) into luminescent solar concentrators (LSCs) can also improve light trapping in the design and similarly enhance performance in comparison with conventional LSCs. This efficiency improvement relies on an asymmetry in the angular dependence of emission versus absorption that can be provided by the stokes shift of the radiation remitted by the nanorod. Our analysis predicts efficiency increases even when non-radiative loss is comparable to current GaAs cells and nanorod optical performance is consistent with state-of-the-art synthetic preparations.

Conference Presentation

Citation Download Citation

Matthew T. Sheldon "Detailed balance efficiencies for luminescent solar concentrators with aligned semiconductor nanorods (Conference Presentation)", Proc. SPIE 10759, New Concepts in Solar and Thermal Radiation Conversion and Reliability, 107590Z (18 September 2018); https://doi.org/10.1117/12.2323215

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

Nanorods

Semiconductors

Solar concentrators

Absorption

Gallium arsenide

Luminescence

Nanocrystals

Show All Keywords

Keywords/Phrases

Search In:

Publication Years