Work

Fabrication of Microlens Arrays by Localized Hydrolysis in Water Droplet Microreactors

Year: 2013

Type: article

Abstract: We report a facile self-assembly strategy for fabricating TiO2 microlens arrays by localized hydrolysis of TiCl4 precursor in water droplets. Microcontact printing was used to define hydrophilic areas on a substrate for space resolved hydrolytic reaction. The water droplets served as the templates, reactant, and microreactors. Highly ordered TiO2 microlens arrays could be produced, which exhibit excellent ability to focus light. Because both size and shape of the final TiO2 microlens can be controlled by the printed chemical pattern and the precursor concentration, it is possible to define TiO2 microlens arrays with different imaging properties. This new method shows attractive features of simplicity, low cost, and requires no heating process, hence is suitable for a range of applications.

Source: ACS Applied Materials & Interfaces

DOI: 10.1021/am400094r

Authors: Jun Liu, Meng-Jie Chang, Yong Ai, Hao-Li Zhang, Yong Chen

Institutions: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Centre National de la Recherche Scientifique, École Normale Supérieure - PSL, Processus d'Activation Sélective par Transfert d'Énergie Uni-électronique ou Radiatif, Université Pierre-et-Marie-Curie

Language: English

Topic: Advanced optical system design

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2318070976

FWCI: 1.063

Cites: 31

Cited by: 18

Related to: 10