Light Capacitances in Silicon and Perovskite Solar Cells
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Light Capacitances in Silicon and Perovskite Solar CellsData de publicació
2019Editor
ElsevierISSN
0038-092X; 1471-1257Cita bibliogràfica
ALMORA, Osbel; GARCIA-BELMONTE, Germà. Light capacitances in silicon and perovskite solar cells. Solar Energy, 2019, vol. 189, p. 103-110Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.sciencedirect.com/science/article/pii/S0038092X19307108Versió
info:eu-repo/semantics/submittedVersionParaules clau / Matèries
Resum
The framework on which the physics of silicon solar cells (SiSCs) is based robustly predicts
dependences of capacitance on light intensity and voltage, even when most recent innovations
are considered as the incor ... [+]
The framework on which the physics of silicon solar cells (SiSCs) is based robustly predicts
dependences of capacitance on light intensity and voltage, even when most recent innovations
are considered as the incorporation of transition metal oxide/Si heterojunctions. However,
perovskite solar cells (PSCs) challenge most of the established paradigms, claiming for
rethinking of known theories and devising novel models. Here we tackle this scenario by probing
and comparing light-induced capacitance responses yielded by these two major exponents in the
field of photovoltaic research. SiSCs light capacitances can be easily interpreted in the
framework of the so-called chemical capacitance. Current approaches addressing the intriguing
low-frequency capacitive features of PSCs are outlined and compared. Here, apparent
similarities and differences between both photovoltaic technologies are highlighted,
concerning the observation of light capacitances of chemical origin. It is concluded that,
contrary to that occurring in SiSCs, bulk electronic chemical capacitances are not
straightforwardly observed in PSCs. As capacitive features exhibited by PSCs are believed to
be critically connected to performance degradation and device instability, future research and explanation directions are proposed here for advancing in the understanding of this challenging
photovoltaic technology. [-]
Publicat a
Solar Energy, 2019, vol. 189, p. 103-110Proyecto de investigación
We acknowledge funding from MINECO of Spain under Projects MAT2016-76892-C3- 1-R. O.A. acknowledges the financial support from the VDI/VD Innovation + Technik GmbH (Project-title: PV-ZUM) and the SAOT funded by the German Research Foundation (DFG) in the framework of the German excellence initiative.Drets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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