flexible electronics

We have several Ph.D. positions available in our group (https://sites.usc.edu/zhaogroup/) in Aerospace and Mechanical Engineering and Biomedical Engineering at University of Southern California for Fall 2023. We are an interdesciplinary group with broad interests in flexible and stretchable sensors, experimental mechanics, advanced materials, and micro/nano manufacturing. Our focus areas include 3D soft electronics, brain-machine interfaces, unconventional micro/nano fabrication, and engineered surfaces/interfaces.

My lab is looking for strongly motivated Ph.D. students and Postdocs to join our group in the Department of Mechanical Engineering & Materials Science at Duke University. We conduct research on human-centered materials intelligence through a combination of flexible electronics, robotic metamaterials, and artificial intelligence. Two positions are available immediately. 

Position 1: The project will focus on the design, fabrication, and testing of robotic mechanical metamaterials.

One postdoc position is available in Wang Research lab (https://www.wangresearchlab.com) in the Department of Materials Science and Engineering (MSE) and the Institute of Materials Science (IMS) at the University of Connecticut (UConn).

We are looking for strongly motivated Postdocs and/or Ph.D. students to join our group in the Department of Mechanical Engineering & Materials Science at Duke University. Two openings with primary focuses on flexible electronics and programmable matter are available immediately. 

Dear colleagues,

POST-DOCTORAL SCHOLAR, PENN STATE:  The Advanced Structures Laboratory, Department of Aerospace Engineering at the Pennsylvania State University, University Park Campus invites applications for an appointment as a Postdoctoral Scholar.

The Division of Physical Sciences and Engineering at King Abdullah University of Science and
Technology (KAUST), Saudi Arabia, invites applications for Postdoctoral fellow in Mechanical
Engineering at the Composite and Heterogeneous Material Analysis and Simulation Laboratory
(COHMAS, http://cohmas.kaust.edu.sa).

2 field of studies are available:

Skin is the largest organ of the human body, and it offers a diagnostic interface rich with vital biological signals from the inner organs, blood vessels, muscles, and dermis/epidermis. Soft, flexible, and stretchable electronic devices provide a novel platform to interface with soft tissues for robotic feedback and control, regenerative medicine, and continuous health monitoring.

Flexible Batteries: From Mechanics to Devices, Kun Kelvin Fu, Jian Cheng, Teng Li, and Liangbing Hu, ACS Energy Letters 1, 1065−1079 (2016)

Dear colleagues,

You are cordially invited to submit abstract(s) to Symposium D-12 Mechanics, Materials, and Manufacture of Flexible and Stretchable Electronics at the 2016 SES meeting to be held at the University of Maryland-College Park during October 2-5, 2016. Abstracts can not be more than 350 words and are due on Wednesday, June 15, 2016.

Published in Advanced Functional Materials as a Feature Article!

Possessing a strong piezoresistivity, nanocomposites of metal nanowires and elastomer have been studied extensively for its use in highly flexible, stretchable, and sensitive sensors. In this work, we analyze the working mechanism and performance of a nanocomposite based stretchable strain sensor by calculating the conductivity of the nanowire percolation network as a function of strain. We reveal that the nonlinear piezoresistivity is attributed to the topological change of percolation network, which leads to a bottleneck in the electric path.

Super-stretchable, skin-mountable, and ultra-soft strain sensors are presented by using carbon nanotube percolation network–silicone rubber nanocomposite thin films. The applicability of the
strain sensors as epidermal electronic systems, in which mechanical compliance like human skin and high stretchability (e > 100%) are required, has been explored. The sensitivity of the strain

Introduction

Dear colleagues and friends, 

On behalf of the editorial board, I would like to introduce our new Journal, Soft Robotics (SoRo) to the mechanics community. SoRo is an innovative peer-reviewed journal dedicated to the science and engineering of soft materials in mobile machines. The Journal breaks new ground as the first to answer the urgent need for research on robotic technology that can safely interact with living systems and function in complex natural or human-built environments.

In this paper recently feature on the cover of Science Translational Medicine, we report the development of a class of mechanically flexible silicon electronics for multiplexed measurement of signals in an intimate, conformal integrated mode on the dynamic, three-dimensional surfaces of soft tissues in the human body. Mechanics model shows that the strain in the fragile materials, e.g. silicon, is several orders of magnitude smaller than the fracture strain, when wrapped onto the curvilinear cardiac surface.

Call for papers

2009 MRS Spring Meeting, San Francisco, CA, April 13-17

Symposium PP: Materials and Devices for Flexible and Stretchable Electronics

Abstract Deadline: 3 November 2008

www.mrs.org/spring2009

In this paper, we report comprehensive experimental and theoretical
studies of bending in structures relevant to inorganic flexible electronics.
Different from previous mechanics models of related systems, our analysis does not
assume the thin film to cover the entire substrate, thereby explicitly
accounting for effects of edges and finite device sizes, both of which play
critically important roles in the mechanics and bending properties. These
thin-film islands give nonuniform stress, with maxima that often appear at the
edges and spatially non-uniform shear and normal stresses along the film/substrate
interface. Although these results are generally applicable to all classes of

H. Mei, Y. Pang, and R. Huang, International Journal of Fracture 148, 331-342 (2007).

Following a previous effort published in MRS Proceedings, we wrote a journal article of the same title, with more numerical results. While the main conclusions stay the same, a few subtle points are noted in this paper.

A link for the paper: http://www.seas.harvard.edu/suo/papers/201.pdf