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You searched for: Subject electronics Remove constraint Subject: electronics Subject term graphene Remove constraint Subject term: graphene Subject term irradiation Remove constraint Subject term: irradiation Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Graphene-based TiO2 composites for photocatalysis & environmental remediation: synthesis and progress

Author:
Anushka Purabgola; Neelaambhigai Mayilswamy; Balasubramanian Kandasubramanian
Source:
Environmental science and pollution research 2022 v.29 no.22 pp. 32305-32325
ISSN:
0944-1344
Subject:
decontamination; drugs; electrochemistry; electronics; energy; graphene; graphene oxide; irradiation; lithium; nanocomposites; nanofibers; nanospheres; photocatalysis; photocatalysts; pollution; remediation; research; rhodamines; semiconductors; solar energy; titanium dioxide; wastewater treatment
Abstract:
... Photoactive nanomaterials constitute an emerging field in nanotechnology, finding an extensive array of applications spanning diverse areas, including electronics and photovoltaic devices, solar fuel cells, wastewater treatment, etc. Titanium dioxide (TiO₂), in its thin-film form, has been exhaustively surveyed as potential photocatalysts for environmental remediation owing to its innocuousness, s ...
DOI:
10.1007/s11356-022-18983-9

2. Laser-Induced Graphene from Paper for Mechanical Sensing

Author:
Bohdan Kulyk; Beatriz F. R. Silva; Alexandre F. Carvalho; Sara Silvestre; António J. S. Fernandes; Rodrigo Martins; Elvira Fortunato; Florinda M. Costa
Source:
ACS applied materials & interfaces 2021 v.13 no.8 pp. 10210-10221
ISSN:
1944-8252
Subject:
carbon dioxide; cellulose; chemistry; electronics; environmental monitoring; graphene; irradiation; paper
Abstract:
... The ability to synthesize laser-induced graphene (LIG) on cellulosic materials such as paper opens the door to a wide range of potential applications, from consumer electronics to biomonitoring. In this work, strain and bending sensors fabricated by irradiation of regular filter paper with a CO₂ laser are presented. A systematic study of the influence of the different process parameters on the con ...
DOI:
10.1021/acsami.0c20270

3. Direct laser writing of MnO2 decorated graphene as flexible supercapacitor electrodes

Author:
Chenguang Zhu; Xia Dong; Xuesong Mei; Meng Gao; Kedian Wang; Dongmei Zhao
Source:
Journal of materials science 2020 v.55 no.36 pp. 17108-17119
ISSN:
0022-2461
Subject:
capacitance; electrochemical capacitors; electrochemistry; electrodes; electronics; energy density; graphene; irradiation; manganese; manganese dioxide; oxidation; sustainable technology
Abstract:
... Manganese oxides/graphene is an electrode material currently under consideration for use in high-performance supercapacitors (SCs). The conventional, widely used wet chemical methods for preparing MnO₂/graphene are tedious and consume large quantities of strong reduction/oxidation reagents. The resulting powder composites require adhesives to form a suitable electrode. In the present study, we rep ...
DOI:
10.1007/s10853-020-05212-2

4. Ultrahigh photothermal temperature in a graphene/conducting polymer system enables contact thermochemical reaction

Author:
Yuqiao Chai; Hui Ma; Xinlei Ma; Xinyue Zhang; Yonglin He; Yapei Wang; Qianqian Jiang; Xusheng Wang; Junhui Ji; Mianqi Xue
Source:
Journal of materials chemistry A 2020 v.8 no.21 pp. 10891-10897
ISSN:
2050-7496
Subject:
electronics; energy; foams; graphene; graphene oxide; health services; heat; irradiation; photothermotherapy; polydimethylsiloxane; pyrroles; surface temperature; thermal degradation
Abstract:
... Photothermal conversion in the near-infrared (NIR) wavelengths, wherein light energy is converted into heat energy, has attracted great interest and developed rapidly in recent years for its wide applications in health care, flexible electronics, energy and environmental fields. However, the photothermal temperature, as one of the most important parameters in the NIR photothermal conversion, still ...
DOI:
10.1039/d0ta03347b

5. Graphene electrical properties modulated by swift heavy ion irradiation

Author:
Jian Zeng; Jie Liu; Shengxia Zhang; Jinglai Duan; Pengfei Zhai; Huijun Yao; Peipei Hu; Khan Maaz; Youmei Sun
Source:
Carbon 2019 v.154 pp. 244-253
ISSN:
0008-6223
Subject:
Raman spectroscopy; annealing; electrical properties; electronics; graphene; ions; irradiation; transistors
Abstract:
... Changes in electrical properties of graphene devices induced by the energetic ion irradiation are very important for their application in harsh radiation environment. This paper presents the modulating behavior of electrical properties of graphene-based devices induced by swift heavy ions (SHIs). Graphene field effect transistors (GFETs) were irradiated by 1.79 GeV Ta ions and it was found that at ...
DOI:
10.1016/j.carbon.2019.08.006

6. A powerful dual-responsive soft actuator and photo-to-electric generator based on graphene micro-gasbags for bioinspired applications

Author:
Lulu YangThese authors contributed equally.; Ke Qi; Longfei Chang; Aifeng Xu; Ying Hu; Hua Zhai; Pin Lu
Source:
Journal of materials chemistry 2018 v.6 no.31 pp. 5031-5038
ISSN:
2050-7518
Subject:
actuators; biomimetics; deformation; electric potential difference; electronics; graphene; humans; irradiation; leaves; medical equipment; microstructure; muscles; robots; thermal expansion; vegetables
Abstract:
... Soft actuators with large deformation and high output force in response to multi-stimuli are highly demanded for the development of biomimetic applications. Here, a bilayer actuator composed of spongy graphene with internal gasbag microstructures and the commercial polyimide adhesive tape is fabricated by a simple and fast method. This actuator produces large deformation, high output force, and du ...
DOI:
10.1039/c8tb01222a

7. High-Performance Two-Dimensional Schottky Diodes Utilizing Chemical Vapour Deposition-Grown Graphene–MoS₂ Heterojunctions

Author:
Hefu Huang; Wenshuo Xu; Tongxin Chen; Ren-Jie Chang; Yuewen Sheng; Qianyang Zhang; Linlin Hou; Jamie H. Warner
Source:
ACS applied materials & interfaces 2018 v.10 no.43 pp. 37258-37266
ISSN:
1944-8252
Subject:
electronics; molybdenum disulfide; transistors; lighting; diodes; graphene; irradiation; materials science; vapors
Abstract:
... Heterostructures based on two-dimensional (2D) materials have attracted enormous interest as they display unique functionalities and have potential to be applied in next-generation electronics. In this report, we fabricated three types of heterostructures based on chemical vapor deposition-grown graphene and MoS₂. A significant rectification was observed in the Au–MoS₂–Gr heterojunction, with a re ...
DOI:
10.1021/acsami.8b13507

8. Reversible Photochemical Control of Doping Levels in Supported Graphene

Author:
Wang Hai I.; Braatz Marie-Luise; Richter Nils; Tielrooij Klaas-Jan; Mics Zoltan; Lu Hao; Weber Nils-Eike; Müllen Klaus; Turchinovich Dmitry; Kläui Mathias; Bonn Mischa
Source:
The Journal of Physical Chemistry C 2017 v.121 no.7 pp. 4083-4091
ISSN:
1932-7455
Subject:
electronics; energy; graphene; irradiation; lasers; optical properties; oxygen; photochemistry; physical chemistry; spectroscopy
Abstract:
... Controlling the type and density of charge carriers in graphene is vital for a wide range of applications of this material in electronics and optoelectronics. To date, chemical doping and electrostatic gating have served as the two most established means to manipulate the carrier density in graphene. Although highly effective, these two approaches require sophisticated graphene growth or complex d ...
DOI:
10.1021/acs.jpcc.7b00347

9. Ultrafast Self-Healing Nanocomposites via Infrared Laser and Their Application in Flexible Electronics

Author:
Wu Shuwen; Li Jinhui; Zhang Guoping; Yao Yimin; Li Gang; Sun Rong; Wong Chingping
Source:
ACS Applied Materials & Interfaces 2017 v.9 no.3 pp. 3040-3049
ISSN:
1944-8252
Subject:
chemical bonding; cycloaddition reactions; electronic circuits; electronics; graphene; humans; irradiation; nanocomposites; nanosheets; polyurethanes; silver; strength (mechanics)
Abstract:
... The continuous evolution toward flexible electronics with mechanical robust property and restoring structure simultaneously places high demand on a set of polymeric material substrate. Herein, we describe a composite material composed of a polyurethane based on Diels–Alder chemistry (PU-DA) covalently linked with functionalized graphene nanosheets (FGNS), which shows mechanical robust and infrared ...
DOI:
10.1021/acsami.6b15476

10. Visible-Light Photolabile, Charge-Convertible Poly(ionic liquid) for Light-degradable Films and Carbon-Based Electronics

Author:
Zhou Tongtong; Lei Yuan; Zhang Hanzhi; Zhang Ping; Yan Casey; Zheng Zijian; Chen Yongming; Yu You
Source:
ACS Applied Materials & Interfaces 2016 v.8 no.36 pp. 23431-23436
ISSN:
1944-8252
Subject:
blue light; chemical bonding; electrodes; electronics; graphene; ionic liquids; irradiation; solubility; thermal stability
Abstract:
... We report for the first time an innovative visible-light photolabile poly(ionic liquid) (VP-PIL). The as-prepared VP-PIL features low Tg (47 °C), good thermal stability (Td ≈ 284 °C) and solubility in ranges of polar solvents. Upon blue light irradiation (∼452 nm), C–O bonds of picolinuim units are photocleaved, and the charges of PILs are simultaneously converted from positive to negative. Taking ...
DOI:
10.1021/acsami.6b09048

11. Green synthesis, photocatalytic and photoelectrochemical performance of an Au–Graphene nanocomposite

Author:
Mohammad Ehtisham Khan; Mohammad Mansoob Khan; Moo Hwan Cho
Source:
RSC advances 2015 v.5 no.34 pp. 26897-26904
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; ambient temperature; aqueous solutions; biofilm; electric current; electrochemistry; electronics; gold; graphene; irradiation; methylene blue; nanocomposites; nanogold; photocatalysis; photoluminescence; reflectance spectroscopy; surfactants; synergism; transmission electron microscopy
Abstract:
... A simplistic and environmentally friendly approach using electrochemically active biofilms (EABs) was developed for the synthesis of an Au–Graphene (Au–G) nanocomposite without the use of surfactants or capping agents. The as-prepared Au–G nanocomposite was characterized by X-ray diffraction, diffuse reflectance spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, photoluminescence ...
DOI:
10.1039/c5ra01864a

12. Photoluminescent Graphene Nanoparticles for Cancer Phototherapy and Imaging

Author:
Nurunnabi Md; Khatun Zehedina; Reeck Gerald R.; Lee Dong Yun; Lee Yong-kyu
Source:
ACS applied materials 2014 v.6 no.15 pp. 12413-12421
ISSN:
1944-8252
Subject:
bioengineering; electronics; electrons; energy; graphene; heat; image analysis; intravenous injection; irradiation; medicinal properties; mice; models; nanoparticles; neoplasm cells; neoplasms; photoluminescence; phototherapy; singlet oxygen; tissues; wavelengths
Abstract:
... Graphene-based nanomaterials are of great interest in a wide range of applications in electronics, the environment, and energy as well as in biomedical and bioengineering. Their unique properties make them generally applicable as prognostic, diagnostic, and therapeutic agents in cancer. In this work, we focused on photodynamic and photothermal therapeutic properties of our previously synthesized c ...
DOI:
10.1021/am504071z

13. Creation of spherical carbon nanoparticles and clusters from carbon dioxide via UV dissociation at the critical point

Author:
Ortrud Aschenbrenner; Takahiro Fukuda; Takashi Hasumura; Toru Maekawa; Andrew B. Cundy; Raymond L. D. Whitby
Source:
Green chemistry 2012 v.14 no.4 pp. 1196-1201
ISSN:
1463-9270
Subject:
ambient temperature; biomedical materials; carbon dioxide; carbon nanoparticles; catalysts; dissociation; electronics; graphene; green chemistry; hydrocarbons; irradiation; metals
Abstract:
... Carbon nanomaterials have become increasingly important for many applications, including sensors, electronics, biomedical materials and functional composites. Currently their production is based on hydrocarbons or graphite and requires very high temperatures. Here we present a method for the synthesis of carbon nanomaterials from carbon dioxide. Unlike previously described methods, our synthesis m ...
DOI:
10.1039/c2gc16593g

14. The effect of layer number and substrate on the stability of graphene under MeV proton beam irradiation

Author:
S. Mathew; T.K. Chan; D. Zhan; K. Gopinadhan; A.-R. Barman; M.B.H. Breese; S. Dhar; Z.X. Shen; T. Venkatesan; John T.L. Thong
Source:
Carbon 2011 v.49 no.5 pp. 1720-1726
ISSN:
0008-6223
Subject:
desorption; electronics; graphene; hardness; irradiation; models; protons; thermal properties
Abstract:
... The use of graphene electronics in space will depend on the radiation hardness of graphene. The damage threshold of graphene samples, subjected to 2MeV H⁺ irradiation, was found to increase with layer number and also when the graphene layer was supported by a substrate. The thermal properties of graphene as a function of the number of layers or as influenced by the substrate argue against a therma ...
DOI:
10.1016/j.carbon.2010.12.057