发布求助
文献互助 智能选刊 最新文献

9th International Symposium on Electrets (ISE 9) Proceedings最新文献

筛选
英文 中文
Corona poling of side chain NLO polymers during their solidification 侧链NLO聚合物凝固过程中的电晕极化现象
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578124
G. Davies, S. Fedosov, P. Carr
{"title":"Corona poling of side chain NLO polymers during their solidification","authors":"G. Davies, S. Fedosov, P. Carr","doi":"10.1109/ISE.1996.578124","DOIUrl":"https://doi.org/10.1109/ISE.1996.578124","url":null,"abstract":"Summary form only given. Effective poling of NLO polymers can normally be performed at poling temperatures exceeding the glass transition temperature Tg of the host polymer. However, some materials start decompose before their Tg is reached. We propose here a novel method for poling NLO polymers at temperatures much fewer than Tg in the solid state. High mobility of polymer matrix and chains necessary for alignment of the dipoles is provided by the artificial lowering of the Tg. The samples are poled in corona while they are still in a viscous state, or even during their spinning from solution. Thus, the solidification occurs in the electric field provided by corona ions.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121030816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Adaptation of the thermal pulse method to the determination of thermal parameters of thin layers 热脉冲法在薄层热参数测定中的应用
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578191
P. Bloss, A. De Reggi, H. Schafer
{"title":"Adaptation of the thermal pulse method to the determination of thermal parameters of thin layers","authors":"P. Bloss, A. De Reggi, H. Schafer","doi":"10.1109/ISE.1996.578191","DOIUrl":"https://doi.org/10.1109/ISE.1996.578191","url":null,"abstract":"As shown by DeReggi and Bauer (1995), the thermal diffusivity of a dielectric film adhered to a substrate acting as a heat sink may be determined accurately from the electret or induced electret-like thermal pulse response. Motivated by the need in microelectronics for evaluating thermal contacts, adhesion and the effects of environmental moisture, we have analyzed as generally as possible the problem of the thermally contacted film. We have shown that under a wide range of conditions met in practice with different interfacial properties, both the diffusivity and interfacial heat transfer coefficients can be determined simultaneously with the electric field distribution. We have shown by experiments on polyimide, that charge injection cannot be neglected in those cases and that, therefore, deconvolution is generally necessary.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125691804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sol-gel processing SrTiO/sub 3/ thin films for dynamic random access memory applications 溶胶-凝胶法处理动态随机存取存储器用SrTiO/ sub3 /薄膜
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578192
Qing-Feng Liu, Xin-Shan Li, Z. Meng
{"title":"Sol-gel processing SrTiO/sub 3/ thin films for dynamic random access memory applications","authors":"Qing-Feng Liu, Xin-Shan Li, Z. Meng","doi":"10.1109/ISE.1996.578192","DOIUrl":"https://doi.org/10.1109/ISE.1996.578192","url":null,"abstract":"Polycrystalline and crack-free strontium titanate (SrTiO/sub 3/) thin films were deposited on silicon and quartz substrates by the sol-gel technique, using strontium acetate and titanium tetrabutoxide as starting materials. As-deposited thin films were amorphous in structure, the perovskite phase was observed by X-ray diffraction analysis of the thin films heat-treated over 600/spl deg/C.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115111342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The charge dynamics of thermally wet grown SiO/sub 2/ electret by corona charging method with constant grid current 恒栅极电流电晕充电法研究了热湿生长SiO/sub /驻极体的电荷动力学
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578058
Li Huamao, Xia Zhongfu, Shen Shaoqun, Z. Hongyan, Cao Yang, Zhu Jianwei
{"title":"The charge dynamics of thermally wet grown SiO/sub 2/ electret by corona charging method with constant grid current","authors":"Li Huamao, Xia Zhongfu, Shen Shaoqun, Z. Hongyan, Cao Yang, Zhu Jianwei","doi":"10.1109/ISE.1996.578058","DOIUrl":"https://doi.org/10.1109/ISE.1996.578058","url":null,"abstract":"In this paper, the decay of the space charge in SiO/sub 2/ electrets which were corona charged with different parameters of constant grid current was observed, and was compared to that with constant grid voltage. The shift of the centroid of space charges in the sample was determined by capacitance-voltage (C-V) analysis technique. By using these experimental results, the storage and transportation of the space charge in the SiO/sub 2/ electrets was analyzed.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115442845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The time evolution of the pyroelectric response induced by a laser pulse irradiation in a VDF/TrFE copolymer 激光脉冲辐照诱导VDF/TrFE共聚物热释电响应的时间演化
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578241
Y. Takahashi, K. Hiraoka, T. Furukawa
{"title":"The time evolution of the pyroelectric response induced by a laser pulse irradiation in a VDF/TrFE copolymer","authors":"Y. Takahashi, K. Hiraoka, T. Furukawa","doi":"10.1109/ISE.1996.578241","DOIUrl":"https://doi.org/10.1109/ISE.1996.578241","url":null,"abstract":"The pyroelectric response induced by a YAG laser pulse irradiation has been measured over a bread range of 1ns-10s for a VDF/TrFE copolymer with composition 75/25 mol%. The time spectra contain two damped oscillations associated with thickness and length extension mode piezoelectric resonance. Removing such components by means of Fourier analysis has revealed two kinds of pyroelectric responses, the instantaneous component appearing prior to thermal expansion and the gradually increasing component reflecting fluctuations of crystalline dipoles.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122512157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deposition of oriented polymer films for liquid crystal alignment by pulsed laser ablation 脉冲激光烧蚀沉积液晶取向聚合物薄膜
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578096
Q. Luo, Xiao-yuan Chen, Zhi-guo Liu, Zhengmin Sun, N. Ming
{"title":"Deposition of oriented polymer films for liquid crystal alignment by pulsed laser ablation","authors":"Q. Luo, Xiao-yuan Chen, Zhi-guo Liu, Zhengmin Sun, N. Ming","doi":"10.1109/ISE.1996.578096","DOIUrl":"https://doi.org/10.1109/ISE.1996.578096","url":null,"abstract":"Well oriented polyethylene (PE) films were prepared on glasses coated with Indium Tin oxide (ITO) and on Si(100) substrates by pulsed laser ablation. The films were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and atomic force microscopy (AFM). Nematic liquid crystal 4'-n-pentyl-4-cyanobiphenyl (5CB) is used to display the orientation features of the films. Based on the experiments, a picture is presented about the formation of the polymer films. It is expected that the as-deposited highly oriented polymer films will find various applications in integrated optics and liquid crystal displays.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"831 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123011958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single polar compound bio-electret and its influence on the cell growth 单极复合生物驻极体及其对细胞生长的影响
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578202
Xiangyang Shi, B. Deng, Caomin Sun
{"title":"Single polar compound bio-electret and its influence on the cell growth","authors":"Xiangyang Shi, B. Deng, Caomin Sun","doi":"10.1109/ISE.1996.578202","DOIUrl":"https://doi.org/10.1109/ISE.1996.578202","url":null,"abstract":"All kinds of compound bio-electrets of I&III collagen/chitosan have been developed. Their TSDC curves are analyzed, and the compound bio-electret I&III collagen/chitosan whose T/spl alpha/ and I/spl alpha/ is 37/spl deg/C and 2/spl times/10/sup -9/ A respectively in the polarized state is selected. The study shows that the compound bio-electret can promote normal cell growth when single negatively polarized, and can inhibit cancer cell growth when single positively polarized. It proves that the rational designation of compound bio-electret has a broad applicable use to clinical medicine.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114156128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
X-ray image produced on an electret film 在驻极体胶片上产生的x射线图像
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578260
N.C. da Silva, A. de Almeida, J. Campos
{"title":"X-ray image produced on an electret film","authors":"N.C. da Silva, A. de Almeida, J. Campos","doi":"10.1109/ISE.1996.578260","DOIUrl":"https://doi.org/10.1109/ISE.1996.578260","url":null,"abstract":"In this paper, we describe an application of electrets to obtain the X-ray image of an object. An electret film can be used because the transmission of X-rays removes charges differentially by compensation with ions produced in the air gap between the object and the film. The amount of charge compensated is proportional to the intensity of the radiation transmitted. The electret film presents a clear advantage in low cost; the film used to achieve the electret state can be reused indefinitely. In this paper we describe the instrumentation developed (the charging and digitized reading systems) and present some preliminary images.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128436976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Thermal stability of NLO effects in polymers NLO效应在聚合物中的热稳定性
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578120
G. Yang
{"title":"Thermal stability of NLO effects in polymers","authors":"G. Yang","doi":"10.1109/ISE.1996.578120","DOIUrl":"https://doi.org/10.1109/ISE.1996.578120","url":null,"abstract":"Nonlinear optical (NLO) effects and their thermal stability in different polymers after corona or electron-beam poling are investigated by electro-optical coefficient measurement and by pyroelectric thermal analysis. Tested materials are a guest-host polymer of Disperse Red 1 (DR1) and polymethylmethacrylate (PMMA), a side-chain polymer of PMMA with DR1 side groups, a side-chain styrene-maleic anhydride co-polymer with DR1 side groups, and a cross-linked side-chain polymer Red-Acid Magly. The experimental results indicate that NLO effects in electron-beam poled samples are comparable with those in corona poled samples, while the thermal stability of the electron-beam poled materials is still low in the present stage. The reasons for the lower thermal stability of electron-beam poled samples and a possible way to overcome it are discussed.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130632501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Evolution of charge distributions in polymers during annealing 聚合物退火过程中电荷分布的演化
9th International Symposium on Electrets (ISE 9) Proceedings Pub Date : 1996-09-25 DOI: 10.1109/ISE.1996.578063
G. Sessler, G. Yang
{"title":"Evolution of charge distributions in polymers during annealing","authors":"G. Sessler, G. Yang","doi":"10.1109/ISE.1996.578063","DOIUrl":"https://doi.org/10.1109/ISE.1996.578063","url":null,"abstract":"Polymer films of polyfluoroethylenepropylene (FEP) and polyimide (PI) of 25 /spl mu/m thickness are charged with monoenergetic electron beams of a range smaller than the sample thickness. Thereafter, the charge distribution in the thickness direction and its change with time at an annealing temperature of 120/spl deg/C are measured with the laser-induced pressure-pulse (LIPP) method. The experimental data are analyzed with a model of charge buildup during electron-beam irradiation and charge transport during annealing. The model takes into consideration the charge deposition and dose profiles, the radiation-induced conductivity, the carrier mobility, trapping time and maximum trap density. Evaluation of the data yields values of the mobility-lifetime product and shows that retrapping is fast in FEP and slow in PI in the temperature range considered.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"112 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120880403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信