Kim, Soohyun Choi, Hee-Dok Kim, Il-Doo Lee, Jong-Chan Rhee, Bum Ku Lim, Jung Ah Hong, Jae-Min 2024-01-20T15:31:12Z 2024-01-20T15:31:12Z 2021-09-05 2012-02-15 0021-9797 https://pubs.kist.re.kr/handle/201004/129537 The preparation of two-dimensional monolayers of polymer particles over a large area was demonstrated via a facile solution process. Polymer microspheres were continuously self-assembled into a close-packed monolayer from a colloidal solution confined between two plates such that the top plate was carefully dragged at a constant velocity in the direction opposite that of the monolayer growth. In situ direct observation of the particle movement during the coating process confirmed that particle transport was directed toward the contact line of the solution meniscus by evaporation-induced convective flow. Sliding of the top plate apparently effectively counterbalanced the convective flow to provide the particles with a contact line for growth of a monolayer particle array. The influence of particle concentration, sliding speed of the top plate, and surface wettability of the bottom substrate were investigated and optimized. Monolayer particle arrays were successfully demonstrated as a template for the preparation of ZnO films with ordered hollow hemispherical structures. This approach is applicable to the fabrication of ordered structures of monodispersed particles composed of various materials over large areas. (C) 2011 Published by Elsevier Inc. English ACADEMIC PRESS INC ELSEVIER SCIENCE ARRAYS Formation of a polymer particle monolayer by continuous self-assembly from a colloidal solution Article 10.1016/j.jcis.2011.07.092 1 JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.368, pp.9 - 13 JOURNAL OF COLLOID AND INTERFACE SCIENCE 368 9 13 scie scopus 000299490500002 2-s2.0-84855851075 Chemistry, Physical Chemistry Article ARRAYS Polymer particle monolayer Self-assembly of particle Colloidal solution