1
|
Guo Y, Guo H, He D, Sun J, Chen W, Song Y, Zhou G. Development of Cyclic Tetrasiloxane Polymer as a High-Performance Dielectric and Hydrophobic Layer for Electrowetting Displays. ACS APPLIED MATERIALS & INTERFACES 2023; 15:46470-46482. [PMID: 37738528 DOI: 10.1021/acsami.3c08188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Cyclic tetrasiloxane polymer (CTP) has recently garnered interest as a hydrophobic material with unique properties. This study aims to enhance the dielectric constant of CTP films by introducing excess Si-H groups and to explore the impact of synthesis and processing conditions on the resulting properties. The film demonstrates high hydrophobicity, with contact angles of 107° in air and 165° in n-decane, along with a notable dielectric constant of 5.1°. Furthermore, the CTP film displays reversible electrowetting behavior with low contact angle hysteresis (2°) and possesses good transparency (∼99%) and thermal stability. As such, the CTP film has significant potential as a material for the electric wetting of hydrophobic dielectric layers and may serve as a promising alternative in electrowetting applications.
Collapse
Affiliation(s)
- Yuanyuan Guo
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- Shenzhen Guohua Optoelectronics Tech., Co., Ltd., Shenzhen 518110, China
- Academy of Shenzhen Guohua Optoelectronics, Shenzhen 518110, China
| | - Hao Guo
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Dinggui He
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jiaqi Sun
- University of Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, Ningbo 315201, China
| | - Wangqiao Chen
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yujie Song
- University of Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering, Ningbo 315201, China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- Shenzhen Guohua Optoelectronics Tech., Co., Ltd., Shenzhen 518110, China
- Academy of Shenzhen Guohua Optoelectronics, Shenzhen 518110, China
| |
Collapse
|
2
|
Arkan MZ, Kinas Z, Yalcin E, Arkan E, Özel F, Karabiber A, Chorążewski M. One Material-Opposite Triboelectrification: Molecular Engineering Regulated Triboelectrification on Silica Surface to Enhance TENG Efficiency. Molecules 2023; 28:5662. [PMID: 37570632 PMCID: PMC10420044 DOI: 10.3390/molecules28155662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Molecular engineering is a unique methodology to take advantage of the electrochemical characteristics of materials that are used in energy-harvesting devices. Particularly in triboelectric nanogenerator (TENG) studies, molecular grafting on dielectric metal oxide surfaces can be regarded as a feasible way to alter the surface charge density that directly affects the charge potential of triboelectric layers. Herein, we develop a feasible methodology to synthesize organic-inorganic hybrid structures with tunable triboelectric features. Different types of self-assembled monolayers (SAMs) with electron-donating and withdrawing groups have been used to modify metal oxide (MO) surfaces and to modify their charge density on the surface. All the synthetic routes for hybrid material production have been clearly shown and the formation of covalent bonds on the MO's surface has been confirmed by XPS. The obtained hybrid structures were applied as dopants to distinct polymer matrices with various ratios and fiberization processes were carried out to the prepare opposite triboelectric layers. The formation of the fibers was analyzed by SEM, while their surface morphology and physicochemical features have been measured by AFM and a drop shape analyzer. The triboelectric charge potential of each layer after doping and their contribution to the TENG device's parameters have been investigated. For each triboelectric layer, the best-performing tribopositive and tribonegative material combination was separately determined and then these opposite layers were used to fabricate TENG with the highest efficiency. A comparison of the device parameters with the reference indicated that the best tribopositive material gave rise to a 40% increase in the output voltage and produced 231 V, whereas the best tribonegative one led to a 33.3% rise in voltage and generated 220 V. In addition, the best device collected ~83% more charge than the reference device and came up with 250 V that corresponds to 51.5% performance enhancement. This approach paved the way by addressing the issue of how molecular engineering can be used to manipulate the triboelectric features of the same materials.
Collapse
Affiliation(s)
- Mesude Zeliha Arkan
- Institute of Chemistry, University of Silesia, Szkolna, 40-006 Katowice, Poland;
| | - Zeynep Kinas
- Electrical Engineering Department, Bingol University, Bingol 12000, Türkiye; (Z.K.); (A.K.)
| | - Eyup Yalcin
- Metallurgy and Materials Engineering Department, Ondokuz Mayis University, Samsun 55030, Türkiye;
| | - Emre Arkan
- Institute of Chemistry, University of Silesia, Szkolna, 40-006 Katowice, Poland;
| | - Faruk Özel
- Department of Metallurgy and Materials Engineering, Karamanoglu Mehmetbey University, Karaman 70200, Türkiye;
| | - Abdulkerim Karabiber
- Electrical Engineering Department, Bingol University, Bingol 12000, Türkiye; (Z.K.); (A.K.)
| | - Mirosław Chorążewski
- Institute of Chemistry, University of Silesia, Szkolna, 40-006 Katowice, Poland;
| |
Collapse
|
3
|
Mishra S, Rakshita M, Divi H, Potu S, Rajaboina RK. Unique Contact Point Modification Technique for Boosting the Performance of a Triboelectric Nanogenerator and Its Application in Road Safety Sensing and Detection. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37384592 DOI: 10.1021/acsami.3c04848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
A triboelectric nanogenerator (TENG) is a potential technique that can convert waste kinetic energy to electrical energy by contact separation followed by electrostatic induction. Herein, a unique contact point modification technique has been reviewed carefully via the enlargement of the effective surface area of the tribo layer by using a simple and scalable printing method. In this study, the zinc sulfide (ZnS) nanostructure morphology has been introduced directly on an aluminum electrode (Al) as a tribo positive layer by a modified hydrothermal method and different line patterns directly printed on overhead projector (OHP) transparent sheets by a monochrome laser printer as a tribo negative layer to increase the effective contact area and work-function difference between two tribo layers. This dual parameter results in ∼11 times increment in the open-circuit output voltage (∼420 V) and ∼17 times increment in the short-circuit current density (∼83.33 mA m-2) compared to the normal one. Furthermore, with the proposed surface modification technique, an ultrahigh instantaneous output power density of ∼3.9 W m-2 at a load resistance of 2 MΩ was easily achieved. The direct energy conversion efficiency reached up to 66.67% at 2 MΩ load, which is very high compared to other traditional TENGs. Further, the fabricated TENG demonstrated efficacy in novel road safety sensing applications in hilly areas to control vehicle movement. Therefore, the current idea of surface engineering using a laser printer will be helpful for energy-harvesting enthusiasts to develop more efficient nanogenerators for higher energy conversions.
Collapse
Affiliation(s)
- Siju Mishra
- Energy Materials and Devices Laboratory, Department of Physics, National Institute of Technology, Warangal, Warangal 506 004, India
| | - Muddamalla Rakshita
- Energy Materials and Devices Laboratory, Department of Physics, National Institute of Technology, Warangal, Warangal 506 004, India
| | - Haranath Divi
- Energy Materials and Devices Laboratory, Department of Physics, National Institute of Technology, Warangal, Warangal 506 004, India
| | - Supraja Potu
- Energy Materials and Devices Laboratory, Department of Physics, National Institute of Technology, Warangal, Warangal 506 004, India
| | - Rakesh Kumar Rajaboina
- Energy Materials and Devices Laboratory, Department of Physics, National Institute of Technology, Warangal, Warangal 506 004, India
| |
Collapse
|
4
|
TOCN/copper calcium titanate composite aerogel films as high-performance triboelectric materials for energy harvesting. Carbohydr Polym 2022; 298:120111. [DOI: 10.1016/j.carbpol.2022.120111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/24/2022] [Accepted: 09/10/2022] [Indexed: 11/18/2022]
|
5
|
Zhang K, Chen S, Chen Y, Jia L, Cheng C, Dong S, Hao J. Elastomeric Liquid-Free Conductor for Iontronic Devices. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:11994-12004. [PMID: 36137186 DOI: 10.1021/acs.langmuir.2c01749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
For a long time, the potential application of gel-based ionic devices was limited by the problem of liquid leakage or evaporation. Here, we utilized amorphous, irreversible and reversible cross-linked polyTA (PTA) as a matrix and lithium bis(trifluoromethane sulfonamide) (LiTFSI) as an electrolyte to prepare a stretchable (495%) and self-healing (94%) solvent-free elastomeric ionic conductor. The liquid-free ionic elastomer can be used as a stable strain sensor to monitor human activities sensitively under extreme temperatures. Moreover, the prepared elastic conductor (TEOA0.10-PTA@LiTFSI) was also considered an electrode to assemble with self-designed repairable dielectric organosilicon layers (RD-PDMS) to develop a sustainable triboelectric nanogenerator (SU-TENG) with outstanding performance. SU-TENG maintained good working ability under extreme conditions (-20 °C, 60 °C, and 200% strain). This work provided a low-cost and simple idea for the development of reliable iontronic equipment for human-computer interaction, motion sensing, and sustainable energy.
Collapse
Affiliation(s)
- Kaiming Zhang
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
| | - Sheng Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China
| | - Yanglei Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, P. R. China
| | - Liangying Jia
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
| | - Can Cheng
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P. R. China
| |
Collapse
|
6
|
Zhao K, Lv H, Meng J, Song Z, Meng C, Liu M, Zhang D. Triboelectrification-Induced Electricity in Self-Healing Hydrogel for Mechanical Energy Harvesting and Ultra-sensitive Pressure Monitoring. ACS OMEGA 2022; 7:18816-18825. [PMID: 35694505 PMCID: PMC9178770 DOI: 10.1021/acsomega.2c01743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Triboelectric nanogenerators (TENGs) have shown huge application potential in the fields of micro-nano energy harvesting and multifunctional sensing. However, the damage of triboelectric material is one of the challenges for their practical applications. Herein, we fabricated a flexible TENG employing self-healing hydrogel and fluorinated ethylene propylene film as triboelectric materials for mechanical energy harvesting and pressure monitoring. The prepared hydrogel not only has excellent flexibility, transparency, and self-healing property but also exhibits good mechanical property without plastic deformation and damage under a large stretchable strain of 200%. The output electric signals of TENGs are as high as 33.0 V and 3 μA under a contact frequency of 0.40 Hz and a pressure of 2.9 N, respectively, which can charge a capacitor of 0.22 μF to 24.3 V within 300 s. Note that the voltage retention rate of TENGs after self-healing is up to 88.0%. Moreover, hydrogel-based TENGs can act as a wearable pressure sensor for monitoring human motion, exhibiting a high sensitivity of 105.9 mV/N or 1.73 nA/N under a contact frequency of 0.40 Hz. This research provides a reference roadmap for designing TENGs and self-powered pressure sensors with flexibility, self-healing, and robustness.
Collapse
Affiliation(s)
- Kun Zhao
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Haoran Lv
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Jingke Meng
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Zhenhua Song
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Cheng Meng
- Jiangxi
Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices,
School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, P. R. China
| | - Maocheng Liu
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, P. R. China
| | - Ding Zhang
- School
of Materials Science and Engineering, National Institute for Advanced
Materials, Nankai University, Tianjin 300350, P. R. China
| |
Collapse
|
7
|
Gold Nanoparticles as Effective ion Traps in Poly(dimethylsiloxane) Cross-Linked by Metal-Ligand Coordination. Molecules 2022; 27:molecules27113579. [PMID: 35684515 PMCID: PMC9182465 DOI: 10.3390/molecules27113579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 11/23/2022] Open
Abstract
At this time, the development of advanced elastic dielectric materials for use in organic devices, particularly in organic field-effect transistors, is of considerable interest to the scientific community. In the present work, flexible poly(dimethylsiloxane) (PDMS) specimens cross-linked by means of ZnCl2-bipyridine coordination with an addition of 0.001 wt. %, 0.0025 wt. %, 0.005 wt. %, 0.04 wt. %, 0.2 wt. %, and 0.4 wt. % of gold nanoparticles (AuNPs) were prepared in order to understand the effect of AuNPs on the electrical properties of the composite materials formed. The broadband dielectric spectroscopy measurements revealed one order of magnitude decrease in loss tangent, compared to the coordinated system, upon an introduction of 0.001 wt. % of AuNPs into the polymeric matrix. An introduction of AuNPs causes damping of conductivity within the low-temperature range investigated. These effects can be explained as a result of trapping the Cl− counter ions by the nanoparticles. The study has shown that even a very low concentration of AuNPs (0.001 wt. %) still brings about effective trapping of Cl− counter anions, therefore improving the dielectric properties of the investigated systems. The modification proposed reveals new perspectives for using AuNPs in polymers cross-linked by metal-ligand coordination systems.
Collapse
|
8
|
Horchidan N, Ciomaga CE, Curecheriu LP, Stoian G, Botea M, Florea M, Maraloiu VA, Pintilie L, Tufescu FM, Tiron V, Rotaru A, Mitoseriu L. Increasing Permittivity and Mechanical Harvesting Response of PVDF-Based Flexible Composites by Using Ag Nanoparticles onto BaTiO3 Nanofillers. NANOMATERIALS 2022; 12:nano12060934. [PMID: 35335747 PMCID: PMC8949362 DOI: 10.3390/nano12060934] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/03/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023]
Abstract
The role of Ag addition on the structural, dielectric, and mechanical harvesting response of 20%(xAg − (1 − x)BaTiO3) − 80%PVDF (x = 0, 2, 5, 7 and 27 vol.%) flexible composites is investigated. The inorganic fillers were realized by precipitating fine (~3 nm) silver nanoparticles onto BaTiO3 nanoparticles (~60 nm average size). The hybrid admixtures with a total filling factor of 20 vol.% were embedded into the PVDF matrix. The presence of filler enhances the amount of β-PVDF polar phase and the BaTiO3 filler induces an increase of the permittivity from 11 to 18 (1 kHz) in the flexible composites. The addition of increasing amounts of Ag is further beneficial for permittivity increase; with the maximum amount (x = 27 vol.%), permittivity is three times larger than in pure PVDF (εr ~ 33 at 1 kHz) with a similar level of tangent losses. This result is due to the local field enhancement in the regions close to the filler-PVDF interfaces which are additionally intensified by the presence of silver nanoparticles. The metallic addition is also beneficial for the mechanical harvesting ability of such composites: the amplitude of the maximum piezoelectric-triboelectric combined output collected in open circuit conditions increases from 0.2 V/cm2 (PVDF) to 30 V/cm2 for x = 27 vol.% Ag in a capacitive configuration. The role of ferroelectric and metallic nanoparticles on the increasing mechanical-electric conversion response is also been explained.
Collapse
Affiliation(s)
- Nadejda Horchidan
- Dielectrics, Ferroelectrics & Multiferroics Group, Faculty of Physics, Al. I. Cuza University of Iasi, Bv. Carol I, no. 11, 700506 Iasi, Romania; (N.H.); (L.P.C.)
| | - Cristina Elena Ciomaga
- Department of Exact & Natural Sciences, Institute of Interdisciplinary Research, Al. I. Cuza University of Iasi, Bv. Carol I, no. 11, 700506 Iasi, Romania
- Correspondence: (C.E.C.); (L.M.)
| | - Lavinia Petronela Curecheriu
- Dielectrics, Ferroelectrics & Multiferroics Group, Faculty of Physics, Al. I. Cuza University of Iasi, Bv. Carol I, no. 11, 700506 Iasi, Romania; (N.H.); (L.P.C.)
| | - George Stoian
- National Institute of Research and Development for Technical Physics, 700050 Iasi, Romania;
| | - Mihaela Botea
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.B.); (M.F.); (V.A.M.); (L.P.)
| | - Mihaela Florea
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.B.); (M.F.); (V.A.M.); (L.P.)
| | - Valentin Adrian Maraloiu
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.B.); (M.F.); (V.A.M.); (L.P.)
| | - Lucian Pintilie
- National Institute of Materials Physics, Atomistilor 405A, 077125 Magurele, Romania; (M.B.); (M.F.); (V.A.M.); (L.P.)
| | | | - Vasile Tiron
- Research Center on Advanced Materials and Technologies, Department of Exact & Natural Sciences, Institute of Interdisciplinary Research, Al. I. Cuza University of Iasi, Bv. Carol I, no.11, 700506 Iasi, Romania;
| | - Aurelian Rotaru
- Faculty of Electrical Engineering and Computer Science & MANSiD Research Center, Stefan Cel Mare University, 720229 Suceava, Romania;
| | - Liliana Mitoseriu
- Dielectrics, Ferroelectrics & Multiferroics Group, Faculty of Physics, Al. I. Cuza University of Iasi, Bv. Carol I, no. 11, 700506 Iasi, Romania; (N.H.); (L.P.C.)
- Correspondence: (C.E.C.); (L.M.)
| |
Collapse
|
9
|
Superhydrophobic PDMS-pCA@CNWF Composite with UV-Resistant and Self-Cleaning Properties for Oil/Water Separation. MATERIALS 2022; 15:ma15010376. [PMID: 35009522 PMCID: PMC8746016 DOI: 10.3390/ma15010376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 11/17/2022]
Abstract
Oil separation is crucial for avoiding environmental pollution originating from industrial wastewater and oil spillage; therefore, it is essential to develop techniques for oil separation. Herein, a new membrane with superhydrophilicity was synthesized by a facile, green, and low-cost method. First, cellulose non-woven fabric (CNWF) was modified by poly (catechin) (pCA), which has good antioxidant and antibacterial activities, to make it unaffected by ultraviolet light and to improve the stability of the structure. Then, hydrolyzed polydimethylsiloxane (PDMS) was coated on the pCA@CNWF surface via chemical bonding to make the composite hydrophobic. This durable superhydrophobic fabric can be used to separate various oil/water mixtures by gravity-driven forces with high separation efficiency (over 98.9%). Additionally, the PDMS-pCA@CNWF possesses the advantages of flexibility, high efficiency, and an outstanding self-cleaning performance, and demonstrates significant potential for applications in various environments, even under various harsh conditions, which make it very promising for the treatment of oil pollution in practical applications.
Collapse
|