Unconventional tailorable patterning by solvent-assisted surface-tension-driven lithography

被引:3
作者
Toro, Roberta Grazia [1 ]
Caschera, Daniela [1 ]
Palama, Ilaria Elena [2 ]
D'Amone, Stefania [2 ]
Biasiucci, Mariano [2 ,3 ,6 ]
Federici, Fulvio [1 ]
Gigli, Giuseppe [2 ,4 ,5 ]
Cortese, Barbara [2 ,6 ]
机构
[1] ISMN CNR, Inst Study Nanostruct Mat, Rome, Italy
[2] NNL CNR NANO, Inst Nano Sci CNR, I-73100 Lecce, Italy
[3] Ist Italian Tecnol, Ctr Life Nano Sci Sapienza, I-00161 Rome, Italy
[4] IIT, CNB, Lecce, Italy
[5] Univ Salento, Lecce, Italy
[6] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy
关键词
Self-assembly; Titanium dioxide; Patterning; Dewetting; Strategy; Doped TiO2; Europium(III); Luminescence; LIGHT-EMITTING-DIODES; VAN-DER-WAALS; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENCE PROPERTIES; TIO2; NANOCRYSTALS; FABRICATION; FILMS; NANOPARTICLES; DEPOSITION; DEVICES;
D O I
10.1016/j.jcis.2015.01.015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Unconventional nanopatterning methods are emerging as powerful tools for the development of controlled shapes and ordered morphology of nanostructured materials with novel properties and tailorable functions. Here, we report a simple yet straightforward and efficient approach for patterning through unconventional dewetting that involves surface tension driven process. Using this innovative approach, we have successfully demonstrated to be able to prepare surface micro-patterns over large areas deposited through Eu3+:TiO2 nanoparticles providing rational control over the local nucleation of nanoparticles. Remarkably, these features could be addressed by polar or apolar solvents, suggesting potential applications in bottom-up nanodevices. This paper represents the first such attempt to create an inorganic materials non-lithographic template for the directed deposition of Eu3+:TiO2 or related metal oxides. The technique, which is driven by the unique chemical properties and geometrical layout of the underlying patterned micrometer-sized templates, enables the construction of micro- and nano-structuration of dispersed inorganic functional materials suitable for electrooptical and photonic applications. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码:44 / 52
页数:9
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