najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2019-10-1-70-75najo-534Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХVery wide-bandgap nanostructured metal oxide materials for perovskite solar cellsLarinaL. L.

Kosygin St. 4, Moscow, 119334 

AlexeevaO. V.

Kosygin St. 4, Moscow, 119334 

AlmjashevaO. V.

Professora Popova St. 5, Saint Petersburg, 197376

almjasheva@mail.ruGusarovV. V.

Politekhnicheskaya St. 26, Saint Petersburg, 194021

victor.v.gusarov@gmail.comKozlovS. S.

Kosygin St. 4, Moscow, 119334

NikolskaiaA. B.

Kosygin St. 4, Moscow, 119334

VildanovaM. F.

Kosygin St. 4, Moscow, 119334

ShevaleevskiyO. I.

Kosygin St. 4, Moscow, 119334

shevale2006@yahoo.comDepartment of Solar Photovoltaics, Institute of Biochemical Physics RASRussian FederationSt. Petersburg Electrotechnical University “LETI”Russian FederationIoffe Physical-Technical Institute RASRussian Federation2019060820251017075Copyright © Larina L.L., Alexeeva O.V., Almjasheva O.V., Gusarov V.V., Kozlov S.S., Nikolskaia A.B., Vildanova M.F., Shevaleevskiy O.I., 20252025Larina L.L., Alexeeva O.V., Almjasheva O.V., Gusarov V.V., Kozlov S.S., Nikolskaia A.B., Vildanova M.F., Shevaleevskiy O.I.Larina L.L., Alexeeva O.V., Almjasheva O.V., Gusarov V.V., Kozlov S.S., Nikolskaia A.B., Vildanova M.F., Shevaleevskiy O.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/534

Very wide-bandgap undoped and Y2O3-doped ZrO2 nanoparticles were synthesized and their structural, optical, morphological and energy characteristics were investigated. It was found that the bandgap value in ZrO2 decreases with Y2O3 doping. The developed materials were used for fabrication of nanostructured photoelectrodes for perovskite solar cells (PSCs) with the architecture of glass/FTO/ZrO2– Y2O3/CH3NH3PbI3/spiro-MeOTAD/Au. The power conversion efficiency in the PSCs based on ZrO2–Y2O3 photoelectrodes was significantly higher than that for undoped ZrO2 photoelectrodes. We have found that nanostructured layers, based on very wide-bandgap materials could efficiently transfer the injected electrons via a hopping transport mechanism.

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The authors declare that there are no conflicts of interest present.