Comparison of extra electrons in colloidal n-type Al3+-doped and photochemically reduced ZnO nanocrystals

被引：69

作者：

Schimpf, Alina M. ^{[2
]}

Ochsenbein, Stefan T. ^{[2
]}

Buonsanti, Raffaella ^{[1
]}

Milliron, Delia J. ^{[1
]}

Gamelin, Daniel R. ^{[2
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA

[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 75期

基金：

美国国家科学基金会;

关键词：

QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; MAGNETIC SEMICONDUCTOR; PARTICLES;

D O I：

10.1039/c2cc34635d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The "extra" electrons in colloidal n-type ZnO nanocrystals formed by aliovalent doping and photochemical reduction are compared. Whereas the two are similar spectroscopically, they show very different electron-transfer reactivities, attributable to their different charge-compensating cations (Al3+ vs. H+).

引用

页码：9352 / 9354

页数：3

共 21 条

[1] Tunable Infrared Absorption and Visible Transparency of Colloidal Aluminum-Doped Zinc Oxide Nanocrystals [J].

Buonsanti, Raffaella ;

Llordes, Anna ;

Aloni, Shaul ;

Helms, Brett A. ;

Milliron, Delia J. .

NANO LETTERS, 2011, 11 (11) :4706-4710

[2] Charging colloidal quantum dots by electrochemistry [J].

Guyot-Sionnest, Philippe .

MICROCHIMICA ACTA, 2008, 160 (03) :309-314

[3] PHOTOCHEMISTRY AND RADIATION-CHEMISTRY OF COLLOIDAL SEMICONDUCTORS .23. ELECTRON STORAGE ON ZNO PARTICLES AND SIZE QUANTIZATION [J].

HAASE, M ;

WELLER, H ;

HENGLEIN, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (02) :482-487

[4] Identification of shallow Al donors in ZnO [J].

Herklotz, F. ;

Lavrov, E. V. ;

Weber, J. ;

Mamin, G. V. ;

Kutin, Y. S. ;

Volodin, M. A. ;

Orlinskii, S. B. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2011, 248 (06) :1532-1537

[5] ZnO: Material, physics and applications [J].

Klingshirn, C. .

CHEMPHYSCHEM, 2007, 8 (06) :782-803

[6] Room-temperature electron spin dynamics in free-standing ZnO quantum dots [J].

Liu, William K. ;

Whitaker, Kelly M. ;

Smith, Alyssa L. ;

Kittilstved, Kevin R. ;

Robinson, Bruce H. ;

Gamelin, Daniel R. .

PHYSICAL REVIEW LETTERS, 2007, 98 (18)

[7] Stable photogenerated carriers in magnetic semiconductor nanocrystals [J].

Liu, WK ;

Whitaker, KM ;

Kittilstved, KR ;

Gamelin, DR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (12) :3910-3911

[8] Understanding the Plasmon Resonance in Ensembles of Degenerately Doped Semiconductor Nanocrystals [J].

Mendelsberg, Rueben J. ;

Garcia, Guillermo ;

Li, Hongbo ;

Manna, Liberato ;

Milliron, Delia J. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (22) :12226-12231

[9] Influence of surface modification on the luminescence of colloidal ZnO nanocrystals [J].

Norberg, NS ;

Gamelin, DR .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (44) :20810-20816

[10] Electron-conducting quantum-dot solids with ionic charge compensation [J].

Roest, AL ;

Houtepen, AJ ;

Kelly, JJ ;

Vanmaekelbergh, D .

FARADAY DISCUSSIONS, 2004, 125 :55-62

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