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Title: Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2];  [2];  [2];  [2];  [2];  [2]
  1. Univ. of Illinois, Urbana, IL (United States); University of Illinois
  2. Univ. of Illinois, Urbana, IL (United States)

Fabrication of 3D electronic structures in the micrometer-to-millimeter range is extremely challenging due to the inherently 2D nature of most conventional wafer-based fabrication methods. Self-assembly, and the related method of self-folding of planar patterned membranes, provide a promising means to solve this problem. Here, we investigate self-assembly processes driven by wetting interactions to shape the contour of a functional, nonplanar photovoltaic (PV) device. A mechanics model based on the theory of thin plates is developed to identify the critical conditions for self-folding of different 2D geometrical shapes. This strategy is demonstrated for specifically designed millimeter-scale silicon objects, which are self-assembled into spherical, and other 3D shapes and integrated into fully functional light-trapping PV devices. The resulting 3D devices offer a promising way to efficiently harvest solar energy in thin cells using concentrator microarrays that function without active light tracking systems.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
FG02-07ER46471
OSTI ID:
1876588
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 48 Vol. 106; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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Unified Electromagnetic-Electronic Design of Light Trapping Silicon Solar Cells journal August 2016
Mimosa Origami: A nanostructure-enabled directional self-organization regime of materials journal June 2016
Mechanical assembly of complex, 3D mesostructures from releasable multilayers of advanced materials journal September 2016
Attenuation of Cell Mechanosensitivity in Colon Cancer Cells during In Vitro Metastasis journal November 2012
Planar and Three-Dimensional Printing of Conductive Inks journal December 2011
Controlled Mechanical Buckling for Origami-Inspired Construction of 3D Microstructures in Advanced Materials journal February 2016
Engineered Elastomer Substrates for Guided Assembly of Complex 3D Mesostructures by Spatially Nonuniform Compressive Buckling journal November 2016
Automatic Transformation of Membrane‐Type Electronic Devices into Complex 3D Structures via Extrusion Shear Printing and Thermal Relaxation of Acrylonitrile–Butadiene–Styrene Frameworks journal November 2019
Microfabrication Using Shape‐Transforming Soft Materials journal January 2020
Bio-Origami Hydrogel Scaffolds Composed of Photocrosslinked PEG Bilayers journal August 2013
Conformal Printing of Electrically Small Antennas on Three-Dimensional Surfaces journal January 2011
Using Magnetic Levitation for Three Dimensional Self-Assembly journal August 2011
Engineering of Micro- and Nanostructured Surfaces with Anisotropic Geometries and Properties journal March 2012
Dry-Released Nanotubes and Nanoengines by Particle-Assisted Rolling journal May 2013
Programming Reversibly Self-Folding Origami with Micropatterned Photo-Crosslinkable Polymer Trilayers journal October 2014
Progress and Opportunities in Soft Photonics and Biologically Inspired Optics journal October 2017
Covalent Bonding of Thermoplastics to Rubbers for Printable, Reel‐to‐Reel Processing in Soft Robotics and Microfluidics journal January 2018
A Bezel-Less Tetrahedral Image Sensor Formed by Solvent-Assisted Plasticization and Transformation of an Acrylonitrile Butadiene Styrene Framework journal June 2018
Folding 2D Structures into 3D Configurations at the Micro/Nanoscale: Principles, Techniques, and Applications journal October 2018
Programmable Self‐Assembling 3D Architectures Generated by Patterning of Swellable MOF‐Based Composite Films journal April 2019
Micro/Nanoscale 3D Assembly by Rolling, Folding, Curving, and Buckling Approaches journal June 2019
3D Self‐Assembled Microelectronic Devices: Concepts, Materials, Applications journal September 2019
Self‐Folding Using Capillary Forces journal December 2019
Rolled‐up Nanotechnology: Materials Issue and Geometry Capability journal December 2018
Shapeable Material Technologies for 3D Self‐Assembly of Mesoscale Electronics journal January 2019
3D electronic and photonic structures as active biological interfaces journal December 2019
Microscale Silicon Origami journal August 2016
Mechanically-Guided Deterministic Assembly of 3D Mesostructures Assisted by Residual Stresses journal May 2017
High Performance, Tunable Electrically Small Antennas through Mechanically Guided 3D Assembly journal December 2018
Fluidic assembly at the microscale: progress and prospects journal October 2012
Substrate elastic deformation due to vertical component of liquid-vapor interfacial tension journal August 2012
A Review on Hierarchical Origami and Kirigami Structure for Engineering Applications journal January 2019
Printing, folding and assembly methods for forming 3D mesostructures in advanced materials journal March 2017
Optimal wrapping of liquid droplets with ultrathin sheets journal August 2015
Manufacturing of 3D multifunctional microelectronic devices: challenges and opportunities journal June 2019
Self-folding Structural Design Using Multiscale Analysis on the Light-absorption Folding Behaviour of Polystyrene Sheet journal October 2017
Three-dimensional curvy electronics created using conformal additive stamp printing journal September 2019
Buffering by buckling as a route for elastic deformation journal May 2019
Sequential Self-Folding Structures by 3D Printed Digital Shape Memory Polymers journal September 2015
Sequential Folding using Light-activated Polystyrene Sheet journal November 2015
Smart three-dimensional lightweight structure triggered from a thin composite sheet via 3D printing technique journal February 2016
Multimaterial 4D Printing with Tailorable Shape Memory Polymers journal August 2016
Self-folding of polymer sheets using local light absorption journal January 2012
Thermally responsive rolling of thin gel strips with discrete variations in swelling journal January 2012
Three dimensional printing of components and functional devices for energy and environmental applications journal January 2017
Enhancing the energy conversion efficiency of low mobility solar cells by a 3D device architecture journal January 2019
Photo-origami—Bending and folding polymers with light journal April 2012
The hummingbird tongue is a fluid trap, not a capillary tube journal May 2011
Harnessing the interface mechanics of hard films and soft substrates for 3D assembly by controlled buckling journal July 2019
Active origami by 4D printing journal August 2014
Forming three-dimensional closed shapes from two-dimensional soft ribbons by controlled buckling journal February 2018
Self-rolling and light-trapping in flexible quantum well–embedded nanomembranes for wide-angle infrared photodetectors journal August 2016
Mimosa Origami: A nanostructure-enabled directional self-organization regime of materials journal June 2016
Mechanical assembly of complex, 3D mesostructures from releasable multilayers of advanced materials journal September 2016
Assembly of micro/nanomaterials into complex, three-dimensional architectures by compressive buckling journal January 2015
Origami MEMS and NEMS journal February 2016
Integrated Design and Simulation of Tunable, Multi-State Structures Fabricated Monolithically with Multi-Material 3D Printing text January 2017
Fundamentals and Applications of Electrowetting journal February 2013

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