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Title: Precision Structural Engineering of Self-Rolled-up 3D Nanomembranes Guided by Transient Quasi-Static FEM Modeling

Journal Article · · Nano Letters
DOI:https://doi.org/10.1021/nl5026369· OSTI ID:1876038

Micro- and nanoscale tubular structures can be formed by strain-induced self-rolled-up nanomembranes. Precision engineering of the shape and dimension determines the performance of devices based on this platform for electronic, optical, and biological applications. A transient quasi-static finite element method (FEM) with moving boundary conditions is proposed as a general approach to design diverse types of three-dimensional (3D) rolled-up geometries. Furthermore, this method captures the dynamic release process of membranes through etching driven by mismatch strain and accurately predicts the final dimensions of rolled-up structures. Guided by the FEM modeling, experimental demonstration using silicon nitride membranes was achieved with unprecedented precision including controlling fractional turns of a rolled-up membrane, anisotropic rolling to form helical structures, and local stress control for 3D hierarchical architectures.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
FG02-07ER46471
OSTI ID:
1876038
Journal Information:
Nano Letters, Vol. 14, Issue 11; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Deterministic Self-Rolling of Ultrathin Nanocrystalline Diamond Nanomembranes for 3D Tubular/Helical Architecture journal February 2017
Mechanically Guided Post‐Assembly of 3D Electronic Systems journal September 2018
Inorganic Stimuli‐Responsive Nanomembranes for Small‐Scale Actuators and Robots journal January 2020
Rolled-up SiO x /SiN x microtubes with an enhanced quality factor for sensitive solvent sensing journal August 2018
Assembly and Self-Assembly of Nanomembrane Materials-From 2D to 3D journal January 2018
Printing, folding and assembly methods for forming 3D mesostructures in advanced materials journal March 2017
Effect of Perforation on the Thermal and Electrical Breakdown of Self‐Rolled‐Up Nanomembrane Structures journal September 2019
Monolithic radio frequency SiN x self-rolled-up nanomembrane interdigital capacitor modeling and fabrication journal June 2019
Organ-on-e-chip: Three-dimensional self-rolled biosensor array for electrical interrogations of human electrogenic spheroids journal August 2019
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