title: Nanostructure Formation by controlled dewetting on patterned substrates: A combined theoretical, modeling and experimental study.
abstract: We perform systematic two-dimensional energetic analysis to study the stability of various nanostructures formed by dewetting solid films deposited on patterned substrates. Our analytical results show that by controlling system parameters such as the substrate surface pattern, film thickness and wetting angle, a variety of equilibrium nanostructures can be obtained. Phase diagrams are presented to show the complex relations between these system parameters and various nanostructure morphologies. We further carry out both phase field simulations and dewetting experiments to validate the analytically derived phase diagrams. Good agreements between the results from our energetic analyses and those from our phase field simulations and experiments verify our analysis. Hence, the phase diagrams presented here provide guidelines for using solid-state dewetting as a tool to achieve various nanostructures.
authors: Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore.
authors: Liang-Xing
authors: LX
authors: Lu
authors: Institute of Materials and Research Engineering, A*STAR, Singapore 117602, Singapore.
authors: Ying-Min
authors: YM
authors: Wang
authors: Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore.
authors: Bharathi Madurai
authors: BM
authors: Srinivasan
authors: Institute of Materials and Research Engineering, A*STAR, Singapore 117602, Singapore.
authors: Mohamed
authors: M
authors: Asbahi
authors: Institute of Materials and Research Engineering, A*STAR, Singapore 117602, Singapore.|Singapore University of Technology and Design, Singapore 138682, Singapore.
authors: Joel K W
authors: JK
authors: Yang
authors: Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore.
authors: Yong-Wei
authors: YW
authors: Zhang