Controlling the oxidation state of molybdenum oxide nanoparticles prepared by ionic liquid/metal sputtering to enhance plasmon-induced charge separation

被引：12

作者：

Akiyoshi, Kazutaka ^{[1
]}

Kameyama, Tatsuya ^{[1
]}

Yamamoto, Takahisa ^{[1
]}

Kuwabata, Susumu ^{[2
]}

Tatsuma, Tetsu ^{[3
]}

Torimoto, Tsukasa ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan

[2] Osaka Univ, Grad Sch Engn, 2-1 Yamada Oka, Suita, Osaka 5650871, Japan

[3] Univ Tokyo, Inst Ind Sci, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan

来源：

RSC ADVANCES | 2020年 / 10卷 / 48期

关键词：

METAL NANOPARTICLES; ALLOY NANOPARTICLES; GOLD NANOPARTICLES; OXYGEN VACANCIES; ROOM-TEMPERATURE; DEPOSITION; LIQUIDS; SIZE; FILMS; NANOCOMPOSITES;

D O I：

10.1039/d0ra05165a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoparticles composed of molybdenum oxide, MoOx, were successfully prepared by room-temperature ionic liquid (RTIL)/metal sputtering followed by heat treatment. Hydroxyl groups in RTIL molecules retarded the coalescence between MoO(x)NPs during heat treatment at 473 K in air, while the oxidation state of Mo species in MoO(x)nanoparticles (NPs) could be modified by changing the heat treatment time. An LSPR peak was observed at 840 nm in the near-IR region for MoO(x)NPs of 55 nm or larger in size that were annealed in a hydroxyl-functionalized RTIL. Photoexcitation of the LSPR peak of MoO(x)NPs induced electron transfer from NPs to ITO electrodes.

引用

页码：28516 / 28522

页数：7

共 72 条

[1] Localized Surface Plasmon Resonance in Semiconductor Nanocrystals [J].

Agrawal, Ankit ;

Cho, Shin Hum ;

Zandi, Omid ;

Ghosh, Sandeep ;

Johns, Robert W. ;

Milliron, Delia J. .

CHEMICAL REVIEWS, 2018, 118 (06) :3121-3207

[2] Electrochemical modulation of plasmon-induced charge separation behaviour at Au-TiO2 photocathodes [J].

Akiyoshi, Kazutaka ;

Tatsuma, Tetsu .

PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 2019, 18 (07) :1727-1731

[3] Hot Holes Assist Plasmonic Nanoelectrode Dissolution [J].

Al-Zubeidi, Alexander ;

Hoener, Benjamin S. ;

Collins, Sean S. E. ;

Wang, Wenxiao ;

Kirchner, Silke R. ;

Jebeli, Seyyed Ali Hosseini ;

Joplin, Anneli ;

Chang, Wei-Shun ;

Link, Stephan ;

Landes, Christy F. .

NANO LETTERS, 2019, 19 (02) :1301-1306

[4] Exfoliation Solvent Dependent Plasmon Resonances in Two-Dimensional Sub-Stoichiometric Molybdenum Oxide Nanoflakes [J].

Alsaif, Manal M. Y. A. ;

Field, Matthew R. ;

Daeneke, Torben ;

Chrimes, Adam F. ;

Zhang, Wei ;

Carey, Benjamin J. ;

Berean, Kyle J. ;

Walia, Sumeet ;

van Embden, Joel ;

Zhang, Baoyue ;

Latham, Kay ;

Kalantar-zadeh, Kourosh ;

Ou, Jian Zhen .

ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (05) :3482-3493

[5] Optical absorption spectra of nanocrystal gold molecules [J].

Alvarez, MM ;

Khoury, JT ;

Schaaff, TG ;

Shafigullin, MN ;

Vezmar, I ;

Whetten, RL .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (19) :3706-3712

[6]

[Anonymous], 1988, SURFACE PLASMONS SMO, DOI [10.1007/BFb0048319, DOI 10.1007/BFB0048319]

[7]

Armand M, 2009, NAT MATER, V8, P621, DOI [10.1038/NMAT2448, 10.1038/nmat2448]

[8] Two-Dimensional Molybdenum Trioxide and Dichalcogenides [J].

Balendhran, Sivacarendran ;

Walia, Sumeet ;

Nili, Hussein ;

Ou, Jian Zhen ;

Zhuiykov, Serge ;

Kaner, Richard B. ;

Sriram, Sharath ;

Bhaskaran, Madhu ;

Kalantar-zadeh, Kourosh .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (32) :3952-3970

[9]

Borra EF, 2007, NATURE, V447, P979, DOI 10.1038/nature05909

[10]

Brongersma ML, 2015, NAT NANOTECHNOL, V10, P25, DOI [10.1038/nnano.2014.311, 10.1038/NNANO.2014.311]

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