Scalable synthesis of Ti-doped MoO2 nanoparticle-hole-transporting-material with high moisture stability for CH3NH3PbI3 perovskite solar cells

Kyungmin Im; Jin Hyuck Heo; Sang Hyuk Im; Jinsoo Kim

doi:10.1016/j.cej.2017.07.160

Scalable synthesis of Ti-doped MoO₂ nanoparticle-hole-transporting-material with high moisture stability for CH₃NH₃PbI₃ perovskite solar cells

Kyungmin Im, Jin Hyuck Heo, Sang Hyuk Im, Jinsoo Kim

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Ti doped MoO₂ nanoparticles with high BET surface area of 135 m²/g were synthesized via scalable solvothermal cracking of polycrystalline MoO₃ microparticles prepared by ultrasonic spray pyrolysis. The pristine MoO₂ and Ti doped MoO₂ nanoparticles showed metallic conductivity, whereas the MoO₃ microparticles had semi-conducting behavior. In addition, the Ti doping in MoO₂ nanoparticles formed stronger Mo[sbnd]O bond than the pristine MoO₂ and consequently exhibited improved stability against humidity. Accordingly, the p-i-n type planar CH₃NH₃PbI₃ perovskite solar cells with Ti doped MoO₂ inorganic hole transporting material showed 15.8% of power conversion efficiency at 1 Sun condition (100 mW/cm²) and significantly improved humidity stability.

Original language	English
Pages (from-to)	698-705
Number of pages	8
Journal	Chemical Engineering Journal
Volume	330
DOIs	https://doi.org/10.1016/j.cej.2017.07.160
Publication status	Published - 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Hole transporting material
Moisture stability
Perovskite solar cells
Solvothermal cracking process
Ti-doped MoO

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.cej.2017.07.160

Cite this

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title = "Scalable synthesis of Ti-doped MoO2 nanoparticle-hole-transporting-material with high moisture stability for CH3NH3PbI3 perovskite solar cells",

abstract = "Ti doped MoO2 nanoparticles with high BET surface area of 135 m2/g were synthesized via scalable solvothermal cracking of polycrystalline MoO3 microparticles prepared by ultrasonic spray pyrolysis. The pristine MoO2 and Ti doped MoO2 nanoparticles showed metallic conductivity, whereas the MoO3 microparticles had semi-conducting behavior. In addition, the Ti doping in MoO2 nanoparticles formed stronger Mo[sbnd]O bond than the pristine MoO2 and consequently exhibited improved stability against humidity. Accordingly, the p-i-n type planar CH3NH3PbI3 perovskite solar cells with Ti doped MoO2 inorganic hole transporting material showed 15.8% of power conversion efficiency at 1 Sun condition (100 mW/cm2) and significantly improved humidity stability.",

keywords = "Hole transporting material, Moisture stability, Perovskite solar cells, Solvothermal cracking process, Ti-doped MoO",

author = "Kyungmin Im and Heo, {Jin Hyuck} and Im, {Sang Hyuk} and Jinsoo Kim",

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year = "2017",

doi = "10.1016/j.cej.2017.07.160",

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T1 - Scalable synthesis of Ti-doped MoO2 nanoparticle-hole-transporting-material with high moisture stability for CH3NH3PbI3 perovskite solar cells

AU - Im, Kyungmin

AU - Heo, Jin Hyuck

AU - Im, Sang Hyuk

AU - Kim, Jinsoo

PY - 2017

Y1 - 2017

N2 - Ti doped MoO2 nanoparticles with high BET surface area of 135 m2/g were synthesized via scalable solvothermal cracking of polycrystalline MoO3 microparticles prepared by ultrasonic spray pyrolysis. The pristine MoO2 and Ti doped MoO2 nanoparticles showed metallic conductivity, whereas the MoO3 microparticles had semi-conducting behavior. In addition, the Ti doping in MoO2 nanoparticles formed stronger Mo[sbnd]O bond than the pristine MoO2 and consequently exhibited improved stability against humidity. Accordingly, the p-i-n type planar CH3NH3PbI3 perovskite solar cells with Ti doped MoO2 inorganic hole transporting material showed 15.8% of power conversion efficiency at 1 Sun condition (100 mW/cm2) and significantly improved humidity stability.

AB - Ti doped MoO2 nanoparticles with high BET surface area of 135 m2/g were synthesized via scalable solvothermal cracking of polycrystalline MoO3 microparticles prepared by ultrasonic spray pyrolysis. The pristine MoO2 and Ti doped MoO2 nanoparticles showed metallic conductivity, whereas the MoO3 microparticles had semi-conducting behavior. In addition, the Ti doping in MoO2 nanoparticles formed stronger Mo[sbnd]O bond than the pristine MoO2 and consequently exhibited improved stability against humidity. Accordingly, the p-i-n type planar CH3NH3PbI3 perovskite solar cells with Ti doped MoO2 inorganic hole transporting material showed 15.8% of power conversion efficiency at 1 Sun condition (100 mW/cm2) and significantly improved humidity stability.

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