Efficiency of Emerging Photovoltaic Devices under Indoor Conditions

Abstract

Emerging photovoltaic (PV) technologies are considered to be excellent candidates to be used as power sources for indoor and low-light applications. The already demonstrated high power conversion efficiencies (PCEs) and the potential to manufacture perovskite, organic, or dye-sensitized solar cells at low cost make them particularly interesting. In this work, the maximum PCE of PV devices under low-light conditions is explored. The role of spectral mismatch, non-radiative recombination, and parasitic Ohmic losses is investigated. The performed calculation provides guidelines to improve the low-light performance of PV devices for ambient light. In addition, a simple measurement procedure for the indoor PCE is discussed.