Influence of Silver Doping on Electron Transport in Thin Films of PbSe Nanocrystals

被引：50

作者：

Kang, Moon Sung ^{[1
,2
]}

Sahu, Ayaskanta ^{[1
,3
]}

Frisbie, C. Daniel ^{[1
]}

Norris, David J. ^{[3
]}

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

[2] Soongsil Univ, Dept Chem Engn, Seoul 156743, South Korea

[3] ETH, Opt Mat Engn Lab, Zurich, Switzerland

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 05期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

doping; colloidal quantum dots; PbSe nanocrystals; electron transport; field-effect transistors; FIELD-EFFECT TRANSISTORS; DOPED CDSE NANOCRYSTALS; QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; CATION-EXCHANGE; SOLAR-CELLS; ABSORPTION; CONDUCTION; MONOLAYERS; POLYMER;

D O I：

10.1002/adma.201203114

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Field-effect transistors are fabricated from thin films of Ag-doped PbSe nanocrystals to analyze the influence of electronically active impurities on electrical transport in this important material for nanocrystal applications. Data is collected as a function of nanocrystal size, dopant concentration, and temperature. Changes in the Fermi level and transport parameters indicate that Ag is acting as a p-type dopant (acceptor). © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：725 / 731

页数：7

共 45 条

[1]

Ashcroft N., 2011, Solid State Physics

[2] 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

[3] Electroluminescence from single monolayers of nanocrystals in molecular organic devices [J].

Coe, S ;

Woo, WK ;

Bawendi, M ;

Bulovic, V .

NATURE, 2002, 420 (6917) :800-803

[4]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[5] STATIC DIELECTRIC-CONSTANT OF HEAVILY DOPED SEMICONDUCTORS [J].

DHAR, S ;

MARSHAK, AH .

SOLID-STATE ELECTRONICS, 1985, 28 (08) :763-766

[6] COULOMB GAP AND LOW-TEMPERATURE CONDUCTIVITY OF DISORDERED SYSTEMS [J].

EFROS, AL ;

SHKLOVSKII, BI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (04) :L49-L51

[7] Doping semiconductor nanocrystals [J].

Erwin, SC ;

Zu, LJ ;

Haftel, MI ;

Efros, AL ;

Kennedy, TA ;

Norris, DJ .

NATURE, 2005, 436 (7047) :91-94

[8] Photoluminescence from impurity codoped and compensated Si nanocrystals [J].

Fujii, M ;

Yamaguchi, Y ;

Takase, Y ;

Ninomiya, K ;

Hayashi, S .

APPLIED PHYSICS LETTERS, 2005, 87 (21) :1-3

[9] Control of the Carrier Type in InAs Nanocrystal Films by Predeposition Incorporation of Cd [J].

Geyer, Scott M. ;

Allen, Peter M. ;

Chang, Liang-Yi ;

Wong, Cliff R. ;

Osedach, Tim P. ;

Zhao, Ni ;

Bulovic, Vladimir ;

Bawendi, Moungi G. .

ACS NANO, 2010, 4 (12) :7373-7378

[10] Hybrid nanorod-polymer solar cells [J].

Huynh, WU ;

Dittmer, JJ ;

Alivisatos, AP .

SCIENCE, 2002, 295 (5564) :2425-2427

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