Study on photovoltaic stability and performance by incorporating tetrabutyl phosphonium iodide into the active layer of a perovskite type photovoltaic cell

A simple synthesis of an ionic liquid is carried out using a trialkylphosphine and an alkyl halide. The results showed that the quality of perovskite crystals is enhanced by the incorporation of B(4)PI, when the percentage is 1.5% the PCE of champion PSCs MA(98.5)(B(4)PI)(1.5)PbI(3) increases signif...

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Detalles Bibliográficos
Autores principales: González-Juárez, Edgar, Valadez-Villalobos, Karen, Garcia-Gutierrez, Diana F., Garcia-Gutierrez, Domingo I., Roa, Arian Espinosa, Sanchez, Eduardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056379/
https://www.ncbi.nlm.nih.gov/pubmed/35520636
http://dx.doi.org/10.1039/d0ra04630b
Descripción
Sumario:A simple synthesis of an ionic liquid is carried out using a trialkylphosphine and an alkyl halide. The results showed that the quality of perovskite crystals is enhanced by the incorporation of B(4)PI, when the percentage is 1.5% the PCE of champion PSCs MA(98.5)(B(4)PI)(1.5)PbI(3) increases significantly from 15.5%, with a V(OC) of 0.957 mV, J(SC) of 23.6 mA cm(−2), and an FF of 68.4%. Stability tests show that excess B(4)PI by 20% has a protective effect against humidity, MA(80)(B(4)PI)(20)PbI(3) was more stable towards humidity, losing only 20% efficiency for 200 h.

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