Search

Your search keyword '"Gong, Shaoqin"' showing total 610 results
Start Over Author "Gong, Shaoqin"
610 results on '"Gong, Shaoqin"'

162. High-performance green flexible electronics based on biodegradable cellulose nanofibril paper

Author

Jung, Yei Hwan, primary, Chang, Tzu-Hsuan, additional, Zhang, Huilong, additional, Yao, Chunhua, additional, Zheng, Qifeng, additional, Yang, Vina W., additional, Mi, Hongyi, additional, Kim, Munho, additional, Cho, Sang June, additional, Park, Dong-Wook, additional, Jiang, Hao, additional, Lee, Juhwan, additional, Qiu, Yijie, additional, Zhou, Weidong, additional, Cai, Zhiyong, additional, Gong, Shaoqin, additional, and Ma, Zhenqiang, additional

Published
2015
Full Text
View/download PDF

164. Polycrystalline GeSn thin films on Si formed by alloy evaporation

Author

Kim, Munho, primary, Fan, Wenjuan, additional, Seo, Jung-Hun, additional, Cho, Namki, additional, Liu, Shih-Chia, additional, Geng, Dalong, additional, Liu, Yonghao, additional, Gong, Shaoqin, additional, Wang, Xudong, additional, Zhou, Weidong, additional, and Ma, Zhenqiang, additional

Published
2015
Full Text
View/download PDF

189. High-performance flexible piezoelectric nanogenerators consisting of porous cellulose nanofibril (CNF)/poly(dimethylsiloxane) (PDMS) aerogel films.

Author

Zheng, Qifeng, Zhang, Huilong, Mi, Hongyi, Cai, Zhiyong, Ma, Zhenqiang, and Gong, Shaoqin

Abstract

A novel, simple, cost-effective, and scalable technique was developed to fabricate high-performance flexible piezoelectric nanogenerators (NGs) using porous cellulose nanofibril (CNFs)/poly(dimethylsiloxane) (PDMS) aerogel film. The porous CNF/PDMS aerogel film was prepared by coating a layer of PDMS on the porous surface of a compressed CNF aerogel film produced via an environmentally friendly freeze-drying process. The porous CNF/PDMS aerogel film was then sandwiched between two thin PDMS films, followed by two aluminum foils, to form the flexible NGs. Under periodic external mechanical deformation by an oscillator, the resulting flexible porous CNF/PDMS aerogel film-based NGs exhibited very stable and high output piezoelectric signals; namely, an open-circuit voltage ( V oc ) of 60.2 V, a short-circuit current ( I sc ) of 10.1 μA, and a corresponding power density of 6.3 mW/cm 3 . The electric power generated by these NGs was able to directly turn on 19 blue light-emitting diodes (LEDs) and charge a capacitor up to 3.7 V. Furthermore, these NGs also demonstrated excellent stability and durability. Considering their excellent piezoelectric performance, ease of large-scale manufacturing, and environmental friendliness, this technology provides a promising solution for developing practical, flexible, and self-powered electronic devices. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

190. Characterizations of biodegradable epoxy-coated cellulose nanofibrils (CNF) thin film for flexible microwave applications.

Author

Mi, Hongyi, Liu, Chien-Hao, Chang, Tzu-Husan, Seo, Jung-Hun, Zhang, Huilong, Cho, Sang, Behdad, Nader, Ma, Zhenqiang, Yao, Chunhua, Cai, Zhiyong, and Gong, Shaoqin

Subjects
ELECTRIC properties of thin films, CELLULOSE fibers, WOOD-pulp, PERMITTIVITY, DIELECTRIC loss, MICROSTRIP transmission lines
Abstract

Wood pulp cellulose nanofibrils (CNF) thin film is a novel recyclable and biodegradable material. We investigated the microwave dielectric properties of the epoxy coated-CNF thin film for potential broad applications in flexible high speed electronics. The characterizations of dielectric properties were carried out in a frequency range of 1-10 GHz. The dielectric constant and loss tangent were extracted by using measurements of microstrip transmission lines that were built on the epoxy coated-CNF film and combined with Agilent Advanced Design System simulations. The RF property for the epoxy coated-CNF was compared to that of commercial polyethylene terephthalate film (PET). With the comparable microwave properties of non-biodegradable PET film, our study suggests that the epoxy coated-CNF film is a suitable biodegradable and environment-friendly substrate for flexible microwave and other applications. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

196. A new class of flexible nanogenerators consisting of porous aerogel films driven by mechanoradicals

Author

Tang, Yanfeng, Zheng, Qifeng, Chen, Bo, Ma, Zhenqiang, and Gong, Shaoqin

Abstract

Flexible nanogenerators (NGs) that are capable of harvesting ubiquitous mechanical energy from ambient environments have attracted significant attention during the past decade. Herein, a simple and scalable technique has been demonstrated to fabricate a new class of high-performance flexible compact triboelectric NGs using porous aerogel films. These porous aerogel film-based NGs can exhibit significant electric outputs without the use of traditional piezoelectric materials or traditional triboelectric assembly (i.e., the need of airgap). To explain the high electric outputs generated from the porous aerogel film-based generators, a mechanoradical-based mechanism was proposed and a series of systematic studies were carried out to substantiate this new mechanism. These systematic studies have demonstrated that high-performance flexible NGs can be made from porous mechanoradical-generating polymer films. The outstanding electric outputs from this new family of compact triboelectric NGs can be attributed to the reversible and transient mechanoradicals resulting from bond breaking of polymer chain, thus leading to a significant amount of transient dipole moments, as well as the permanent electric dipole moments possessed by the mechanoradical-induced polar groups. The elucidation of the potential mechanisms for this family of porous mechanoradical-generating polymers will lead to a new class of energy harvesting materials and high-performance, low-cost, and flexible energy generation devices.

Published
2017
Full Text
View/download PDF

199. cRGD-functionalized, DOX-conjugated, and 64Cu-labeled superparamagnetic iron oxide nanoparticles for targeted anticancer drug delivery and PET/MR imaging

Author

Yang, Xiaoqiang, primary, Hong, Hao, additional, Grailer, Jamison J., additional, Rowland, Ian J., additional, Javadi, Alireza, additional, Hurley, Samuel A., additional, Xiao, Yuling, additional, Yang, Yunan, additional, Zhang, Yin, additional, Nickles, Robert J., additional, Cai, Weibo, additional, Steeber, Douglas A., additional, and Gong, Shaoqin, additional

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results