Facile scalable synthesis of MoO2 nanoparticles by new solvothermal cracking process and their application to hole transporting layer for CH3NH3PbI3 planar perovskite solar cells

Hanseul Choi, Jin Hyuck Heo, Su Ha, Byeong Wan Kwon, Sung Pil Yoon, Jonghee Han, Woo Sik Kim, Sang Hyuk Im, Jinsoo Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

∼10 nm sized MoO2 nanoparticles with high BET surface area of 170.14 m2/g were synthesized via scalable new process of combining the ultrasonic spray pyrolysis and solvothermal cracking process. Initially, we synthesized polycrystalline MoO3 microparticles by the ultrasonic spray pyrolysis at 500 °C or 600 °C. Then the MoO3 microparticles were disassembled into crystalline grains and the grains were subsequently shattered to small MoO2 nanoparticles through the solvothermal polyol reduction process because the polycrystalline MoO3 microparticles are disassembled by thermal expansion and the crystalline MoO3 grains are shattered by volume shrinkage due to phase transition from MoO3 to MoO2. Finally, we applied the MoO2 nanoparticles/toluene solution to new inorganic hole transporting material for planar CH3NH3PbI3 perovskite solar cells. The planar type CH3NH3PbI3 perovskite solar cells exhibited stable efficiency of 14.8% for forward scan condition and 15.5% for reverse scan condition under illumination of 1 Sun (100 mW/cm2).

Original languageEnglish
Pages (from-to)179-186
Number of pages8
JournalChemical Engineering Journal
Volume310
DOIs
Publication statusPublished - 2017 Feb 15
Externally publishedYes

Fingerprint

perovskite
Spray pyrolysis
Nanoparticles
pyrolysis
spray
Ultrasonics
Crystalline materials
Polyols
thermal expansion
phase transition
Sun
toluene
Thermal expansion
Toluene
surface area
Lighting
Phase transitions
Perovskite solar cells
nanoparticle
solar cell

Keywords

  • Molybdenum dioxides
  • Perovskite solar cell
  • Solvothermal cracking process
  • Ultrasonic spray pyrolysis

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Facile scalable synthesis of MoO2 nanoparticles by new solvothermal cracking process and their application to hole transporting layer for CH3NH3PbI3 planar perovskite solar cells. / Choi, Hanseul; Heo, Jin Hyuck; Ha, Su; Kwon, Byeong Wan; Yoon, Sung Pil; Han, Jonghee; Kim, Woo Sik; Im, Sang Hyuk; Kim, Jinsoo.

In: Chemical Engineering Journal, Vol. 310, 15.02.2017, p. 179-186.

Research output: Contribution to journalArticle

@article{164a9b5bfe894e459e84e94cf3a350fe,
title = "Facile scalable synthesis of MoO2 nanoparticles by new solvothermal cracking process and their application to hole transporting layer for CH3NH3PbI3 planar perovskite solar cells",
abstract = "∼10 nm sized MoO2 nanoparticles with high BET surface area of 170.14 m2/g were synthesized via scalable new process of combining the ultrasonic spray pyrolysis and solvothermal cracking process. Initially, we synthesized polycrystalline MoO3 microparticles by the ultrasonic spray pyrolysis at 500 °C or 600 °C. Then the MoO3 microparticles were disassembled into crystalline grains and the grains were subsequently shattered to small MoO2 nanoparticles through the solvothermal polyol reduction process because the polycrystalline MoO3 microparticles are disassembled by thermal expansion and the crystalline MoO3 grains are shattered by volume shrinkage due to phase transition from MoO3 to MoO2. Finally, we applied the MoO2 nanoparticles/toluene solution to new inorganic hole transporting material for planar CH3NH3PbI3 perovskite solar cells. The planar type CH3NH3PbI3 perovskite solar cells exhibited stable efficiency of 14.8{\%} for forward scan condition and 15.5{\%} for reverse scan condition under illumination of 1 Sun (100 mW/cm2).",
keywords = "Molybdenum dioxides, Perovskite solar cell, Solvothermal cracking process, Ultrasonic spray pyrolysis",
author = "Hanseul Choi and Heo, {Jin Hyuck} and Su Ha and Kwon, {Byeong Wan} and Yoon, {Sung Pil} and Jonghee Han and Kim, {Woo Sik} and Im, {Sang Hyuk} and Jinsoo Kim",
year = "2017",
month = "2",
day = "15",
doi = "10.1016/j.cej.2016.10.110",
language = "English",
volume = "310",
pages = "179--186",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",

}

TY - JOUR

T1 - Facile scalable synthesis of MoO2 nanoparticles by new solvothermal cracking process and their application to hole transporting layer for CH3NH3PbI3 planar perovskite solar cells

AU - Choi, Hanseul

AU - Heo, Jin Hyuck

AU - Ha, Su

AU - Kwon, Byeong Wan

AU - Yoon, Sung Pil

AU - Han, Jonghee

AU - Kim, Woo Sik

AU - Im, Sang Hyuk

AU - Kim, Jinsoo

PY - 2017/2/15

Y1 - 2017/2/15

N2 - ∼10 nm sized MoO2 nanoparticles with high BET surface area of 170.14 m2/g were synthesized via scalable new process of combining the ultrasonic spray pyrolysis and solvothermal cracking process. Initially, we synthesized polycrystalline MoO3 microparticles by the ultrasonic spray pyrolysis at 500 °C or 600 °C. Then the MoO3 microparticles were disassembled into crystalline grains and the grains were subsequently shattered to small MoO2 nanoparticles through the solvothermal polyol reduction process because the polycrystalline MoO3 microparticles are disassembled by thermal expansion and the crystalline MoO3 grains are shattered by volume shrinkage due to phase transition from MoO3 to MoO2. Finally, we applied the MoO2 nanoparticles/toluene solution to new inorganic hole transporting material for planar CH3NH3PbI3 perovskite solar cells. The planar type CH3NH3PbI3 perovskite solar cells exhibited stable efficiency of 14.8% for forward scan condition and 15.5% for reverse scan condition under illumination of 1 Sun (100 mW/cm2).

AB - ∼10 nm sized MoO2 nanoparticles with high BET surface area of 170.14 m2/g were synthesized via scalable new process of combining the ultrasonic spray pyrolysis and solvothermal cracking process. Initially, we synthesized polycrystalline MoO3 microparticles by the ultrasonic spray pyrolysis at 500 °C or 600 °C. Then the MoO3 microparticles were disassembled into crystalline grains and the grains were subsequently shattered to small MoO2 nanoparticles through the solvothermal polyol reduction process because the polycrystalline MoO3 microparticles are disassembled by thermal expansion and the crystalline MoO3 grains are shattered by volume shrinkage due to phase transition from MoO3 to MoO2. Finally, we applied the MoO2 nanoparticles/toluene solution to new inorganic hole transporting material for planar CH3NH3PbI3 perovskite solar cells. The planar type CH3NH3PbI3 perovskite solar cells exhibited stable efficiency of 14.8% for forward scan condition and 15.5% for reverse scan condition under illumination of 1 Sun (100 mW/cm2).

KW - Molybdenum dioxides

KW - Perovskite solar cell

KW - Solvothermal cracking process

KW - Ultrasonic spray pyrolysis

UR - http://www.scopus.com/inward/record.url?scp=84997207068&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84997207068&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2016.10.110

DO - 10.1016/j.cej.2016.10.110

M3 - Article

AN - SCOPUS:84997207068

VL - 310

SP - 179

EP - 186

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -