Theoretical evidence of hot-ballistic-carriers in ultra-thin solar cell

Nicolas Cavassilas; Imam Makhfudz; Anne-Marie Daré; Michel Lannoo; Marc Bescond; Fabienne Michelini

doi:10.1117/12.2609613

4 March 2022 Theoretical evidence of hot-ballistic-carriers in ultra-thin solar cell

Nicolas Cavassilas, Imam Makhfudz, Anne-Marie Daré, Michel Lannoo, Marc Bescond, Fabienne Michelini

Proceedings Volume 11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI; 1199604 (2022) https://doi.org/10.1117/12.2609613
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

This theoretical work shows that ultra-thin InGaAs solar cells can have the operation of a hot carrier solar cell. Considering a quantum modeling of the electronic transport we show that the open circuit voltage V_oc increases with an energy-selective contact considered between the absorber and the reservoir. Moreover, we do not observe the feared corresponding current degradation. The V_oc improvement agrees with a simple and general expression based on the isentropic carrier extraction, confirming the link between the voltage and the carrier temperature. Concerning the current, as already shown in a precedent work, if carriers are confined in the absorber the current across an energy-selective contact is of the same order of magnitude as that obtained without selectivity. This advantageous behavior is explained by the hybridation of states in the absorber and in the reservoir.

Conference Presentation

Citation Download Citation

Nicolas Cavassilas, Imam Makhfudz, Anne-Marie Daré, Michel Lannoo, Marc Bescond, and Fabienne Michelini "Theoretical evidence of hot-ballistic-carriers in ultra-thin solar cell", Proc. SPIE 11996, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI, 1199604 (4 March 2022); https://doi.org/10.1117/12.2609613

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