Nanoabsorbers for Semitransparent Photovoltaics

Semitransparent solar cells based on ultrathin nanoabsorbers that allow partial transmission of visible light are attracting interest due to their promising applications in photovoltaic windows. To simultaneously achieve considerable visible transparency and high power conversion efficiency, proper...

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Bibliographic Details
Published in2022 IEEE 49th Photovoltaics Specialists Conference (PVSC) pp. 0557 - 0561
Main Authors Gotz-Kohler, Maximilian, Meddeb, Hosni, Osterthun, Norbert, Neugebohrn, Nils, Gehrke, Kai, Vehse, Martin
Format Conference Proceeding
LanguageEnglish
Published IEEE 05.06.2022
Subjects
Absorption
Color
Gallium arsenide
Nanoabsorbers
Optical filters
optical modelling
Photonic band gap
Photovoltaic cells
Photovoltaic systems
PV windows
transparent PV
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DOI10.1109/PVSC48317.2022.9938459

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Summary:Semitransparent solar cells based on ultrathin nanoabsorbers that allow partial transmission of visible light are attracting interest due to their promising applications in photovoltaic windows. To simultaneously achieve considerable visible transparency and high power conversion efficiency, proper adjustment and spectral engineering of the photoactive materials and functional layers are required. Mainly, the tuning of the thickness and the optoelectronic properties in different nanoabsorber material systems can drastically alter the solar cell device outputs. In this work, we analyze the influence of the nanoabsorber thickness from a selection of conventional semiconductor materials with different absorption coefficients on semitransparent solar cells. Using optical modeling, the design rules related to several characteristics are addressed including the average visible transmission (AVT), photocurrent generation, light utilization efficiency (LUE), color rendering index (CRI).
DOI:10.1109/PVSC48317.2022.9938459