najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-4-540-545najo-795Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХNiobium-doped titanium dioxide nanoparticles for electron transport layers in perovskite solar cellsNiobium-doped titanium dioxide nanoparticles for electron transport layers in perovskite solar cellsVildanovaM. F.VildanovaM. F.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

mvildanova@sky.chph.ras.ruKozlovS. S.KozlovS. S.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

NikolskaiaA. B.NikolskaiaA. B.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

ShevaleevskiyO. I.ShevaleevskiyO. I.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

TsvetkovN. A.TsvetkovN. A.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

AlexeevaO. V.AlexeevaO. V.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

LarinaL. L.LarinaL. L.

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Institute of Biochemical Physics; Department of Solar Photovoltaics

119334; Kosygin St. 4; Moscow

Russian Academy of SciencesRussian Academy of Sciences20171308202584540545Copyright © Vildanova M.F., Kozlov S.S., Nikolskaia A.B., Shevaleevskiy O.I., Tsvetkov N.A., Alexeeva O.V., Larina L.L., 20252025Vildanova M.F., Kozlov S.S., Nikolskaia A.B., Shevaleevskiy O.I., Tsvetkov N.A., Alexeeva O.V., Larina L.L.Vildanova M.F., Kozlov S.S., Nikolskaia A.B., Shevaleevskiy O.I., Tsvetkov N.A., Alexeeva O.V., Larina L.L.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/795

   Nb-doped TiO2 nanoparticles with different doping concentrations, varied from 0 to 2.7 mol. %, were prepared by the sol-gel method followed by thermal treatment. The obtained nanoparticles were used to fabricate a series of electron transport layers for constructing perovskite solar cells (PSCs). The prepared layers were characterized using X-ray diffraction and optical transmission measurements. The effects of Nb doping concentration in TiO2 layers on the optical absorption behavior, the morphology and charge carrier dynamics were studied. A series of PSCs, based on the developed electron transport layers was fabricated and examined. It was found that PSC fabricated with 2.7 mol. % Nb content TiO2 electron transport layer have shown up to 19 % improvement of a power conversion efficiency compared to that, based on an undoped TiO2 layer.

   Nb-doped TiO2 nanoparticles with different doping concentrations, varied from 0 to 2.7 mol. %, were prepared by the sol-gel method followed by thermal treatment. The obtained nanoparticles were used to fabricate a series of electron transport layers for constructing perovskite solar cells (PSCs). The prepared layers were characterized using X-ray diffraction and optical transmission measurements. The effects of Nb doping concentration in TiO2 layers on the optical absorption behavior, the morphology and charge carrier dynamics were studied. A series of PSCs, based on the developed electron transport layers was fabricated and examined. It was found that PSC fabricated with 2.7 mol. % Nb content TiO2 electron transport layer have shown up to 19 % improvement of a power conversion efficiency compared to that, based on an undoped TiO2 layer.

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