Reverse-Bias and Temperature Behaviors of Perovskite Solar Cells at Extended Voltage Range | Zendy

Leyla Najafi | Zendy; Sebastiano Bellani | Zendy; Luca Gabatel | Zendy; Marilena Isabella Zappia | Zendy; Aldo Di Carlo | Zendy; Francesco Bonaccorso | Zendy

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Reverse-Bias and Temperature Behaviors of Perovskite Solar Cells at Extended Voltage Range

Author(s) -

Leyla Najafi,

Sebastiano Bellani,

Luca Gabatel,

Marilena Isabella Zappia,

Aldo Di Carlo,

Francesco Bonaccorso

Publication year - 2022

Publication title -

acs applied energy materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.833

H-Index - 36

ISSN - 2574-0962

DOI - 10.1021/acsaem.1c03206

Subject(s) - mesoscopic physics , photovoltaic system , perovskite (structure) , materials science , realization (probability) , biasing , range (aeronautics) , voltage , reverse bias , optoelectronics , energy conversion efficiency , engineering physics , solar cell , electrical engineering , physics , condensed matter physics , engineering , statistics , mathematics , diode , chemical engineering , composite material

Perovskite solar cells have reached certified power conversion efficiency over 25%, enabling the realization of efficient large-area modules and even solar farms. It is therefore essential to deal with technical aspects, including the reverse-bias operation and hot-spot effects, which are crucial for the practical implementation of any photovoltaic technology. Here, we analyze the reverse bias (from 2.5 to 30 V) and temperature behavior of mesoscopic cells through infrared thermal imaging coupled with current density measurements. We show that the occurrence of local heating (hot-spots) and arc faults, caused by local shunts, must be considered during cell and module designing.

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