Peculiarities of CdS nanocrystal formation at annealing of a Langmuir-Blodgett matrix

被引：2

作者：

Svit, Kirill ^{[1
]}

Protasov, Dmitry ^{[1
]}

Teys, Sergey ^{[1
]}

Sveshnikova, Larisa ^{[1
]}

Maksim, Yakushev ^{[1
]}

Zhuravlev, Konstantin ^{[1
]}

机构：

[1] Rzhanov Inst Semicond Phys, 13 Lavrentieva Ave, Novosibirsk 630090, Russia

来源：

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 13 NO 7-9 | 2016年 / 13卷 / 7-9期

关键词：

Langmuir-Blodgett; nanocrystals; cadmium sulphide; self-assembling; FILMS; NANOPARTICLES;

D O I：

10.1002/pssc.201510285

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Formation and assembling of CdS nanocrystals (NC) on highly-ordered pyrolytic graphite (HOPG) and on oxidized silicon substrates have been investigated by atomic force microscopy (AFM) and scanning tunneling microscopy (STM). NC were initially formed within a Langmuir-Blodgett (LB) matrix of cadmium behenate. The LB matrix was then removed by annealing in an ammonia atmosphere. It is shown that the NC self-assembling is mainly determined by the LB matrix wetting properties. In case of wettable HOPG substrate homogeneous matrix evaporation occurs that leads to coarsening of the NC arrays as the main self-assembly process. Otherwise, NC prepared on non-wettable SiO2-Si substrate demonstrate arrays formation determined by the LB matrix dewetting process. For the both cases, the influence of kinetic limitations connected with matrix evaporation rate on the self-assembly process is observed. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：417 / 420

页数：4

共 18 条

[11]

Protasov D. Yu., 2011, J PHYS CHEM C, V115, P20148

[12] Drying-mediated self-assembly of nanoparticles [J].

Rabani, E ;

Reichman, DR ;

Geissler, PL ;

Brus, LE .

NATURE, 2003, 426 (6964) :271-274

[13] UNSTABLE THIN POLYMER-FILMS - RUPTURE AND DEWETTING PROCESSES [J].

REITER, G .

LANGMUIR, 1993, 9 (05) :1344-1351

[14] ZnO based quantum dot sensitized solar cell using CdS quantum dots [J].

Singh, Neetu ;

Mehra, R. M. ;

Kapoor, Avinashi ;

Soga, T. .

JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY, 2012, 4 (01)

[15]

Stuchlik J., 2015, ADV SD ENG MED, V7, P265, DOI DOI 10.1166/ASEM.2015.1689

[16] On the mechanisms of colloidal self-assembly during spin-coating [J].

Toolan, Daniel T. W. ;

Fujii, Syuji ;

Ebbens, Stephen J. ;

Nakamura, Yoshinobu ;

Howse, Jonathan R. .

SOFT MATTER, 2014, 10 (44) :8804-8812

[17] Front instabilities in evaporatively dewetting nanofluids [J].

Vancea, I. ;

Thiele, U. ;

Pauliac-Vaujour, E. ;

Stannard, A. ;

Martin, C. P. ;

Blunt, M. O. ;

Moriarty, P. J. .

PHYSICAL REVIEW E, 2008, 78 (04)

[18] Mode-Controlled Tapered Lasers Based on Quantum Dots [J].

Weinmann, Pia ;

Zimmermann, Christian ;

Schlereth, Thomas Walter ;

Schneider, Christian ;

Hoefling, Sven ;

Kamp, Martin ;

Forchel, Alfred .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 2009, 15 (03) :780-784

← 1 2 →