Quantum transport simulation of valley-photovoltaic devices (Conference Presentation)

Urs Aeberhard

doi:10.1117/12.2653628

10 March 2023 Quantum transport simulation of valley-photovoltaic devices (Conference Presentation)

Urs Aeberhard

Proceedings Volume PC12416, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII; PC124160M (2023) https://doi.org/10.1117/12.2653628
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The paper discusses a quantum transport model that includes explicitly the phonon-mediated intervalley photocarrier transfer in InAs/AlAsSb heterostructures, enabling the simulation-based assessment of hot-carrier extraction via the valley-photovoltaic effect. The model resolves both, intra- and intervalley scattering rates and valley-specific currents, and is applied at short circuit conditions and under forward bias voltage. In both cases, the impact of intervalley charge transfer and L-valley transport on photocarrier collection is evaluated. Special consideration is given to the contacting of the L-valley states for efficient charge extraction, and to the carrier temperature of the steady-state population that dominates the dark current at the radiative limit.

Conference Presentation

Citation Download Citation

Urs Aeberhard "Quantum transport simulation of valley-photovoltaic devices (Conference Presentation)", Proc. SPIE PC12416, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII, PC124160M (10 March 2023); https://doi.org/10.1117/12.2653628

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