Assessing Material Qualities and Efficiency Limits of III-V on Silicon Solar Cells Using External Radiative Efficiency

TL;DR

This paper introduces a quantitative method using external radiative efficiency to assess material quality and predict efficiency limits of III-V on silicon solar cells, guiding the design of high-performance devices.

Contribution

It provides a novel quantitative framework for evaluating material quality and efficiency limits of III-V/Si solar cells based on external radiative efficiencies.

Findings

Predicts limiting efficiencies of III-V/Si solar cells.

Establishes criteria for material quality to achieve high efficiency.

Offers design implications for high-performance solar cells.

Abstract

The paper presents a quantitative approach to the investigation and comparison of the material qualities of III-V on silicon (III-V/Si) solar cells by using external radiative efficiencies. We use this analysis to predict the limiting efficiencies and evaluate the criteria of material quality in order to achieve high efficiency III-V/Si solar cells. This result yields several implications for the design of high efficiency III-V/Si solar cells.