Estimation of annual energy generation of perovskite/crystalline Si tandem solar cells with different configurations in central part of Japan

Jakapan Chantana, Kota Takeguchi, Yu Kawano and Takashi Minemoto

Renewable Energy, 2022, vol. 195, issue C, 896-905

Abstract: Detailed balance limit of perovskite/Si tandem solar cells with two-terminal (2T), four-terminal (4T), and series parallel tandem (SPT) configurations was calculated under a constant bandgap (Eg-bottom) of 1.12 eV of Si bottom subcells. Performances in the 2T configuration are most influenced by the Eg-top, because Eg-top can result in current mismatching if Eg-top is not appropriate. The ideal Eg-top values are 1.73 eV for 2T, 1.82 eV for 4T, and 1.83 eV for SPT under standard AM1.5G spectrum. Consequently, with the ideal Eg-top values, the highest possible efficiency (η) values are 44.8% for 2T, 45.0% for 4T and 44.7% for SPT. Furthermore, detailed balance limit under actual outdoor environmental factors at Shiga-prefecture in Japan was scrutinized. It is found that the outdoor spectral variation has the significant impact on the efficiency limit especially in a case of 2T. Also, the outdoor solar spectra at this observed outdoor location mostly are the blue-rich spectra over a year. As a result, the perovskite/Si tandem solar cell with the large ideal Eg-top of 1.82 eV in 4T configuration is the most appropriate to generate the possible highest η, thereby resulting in the highest annual energy generation.

Keywords: Detailed balance limit; Silicon single-junction solar cell; Tandem solar cells; Environmental factors (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:195:y:2022:i:c:p:896-905

DOI: 10.1016/j.renene.2022.06.076

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