{"title":"电晕带电和直流场极化PVDF薄膜的热释电响应和介电行为","authors":"B. Hilczer, J. Kułek","doi":"10.1109/ISE.1996.578214","DOIUrl":null,"url":null,"abstract":"Dielectric relaxation and pyroelectric response of PVDF films poled in low dc field and corona charged was studied. Pyroelectric coefficient p of corona charged PVDF diaphragm is weakly dependent on light modulation frequency f from a dozen of Hz to a few kHz. The same is found for diaphragms made of film poled in dc field when the side being positive is illuminated, however, a low-frequency anomaly in p(f) is observed when the side being grounded during poling is illuminated. Poling-induced compensating charges, piled up at the crystalline phase of a semicrystalline polymer, influence the /spl beta/-relaxation in MHz frequency range.","PeriodicalId":425004,"journal":{"name":"9th International Symposium on Electrets (ISE 9) Proceedings","volume":"81 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pyroelectric response and dielectric behaviour of corona charged and dc field polarized PVDF films\",\"authors\":\"B. Hilczer, J. Kułek\",\"doi\":\"10.1109/ISE.1996.578214\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Dielectric relaxation and pyroelectric response of PVDF films poled in low dc field and corona charged was studied. Pyroelectric coefficient p of corona charged PVDF diaphragm is weakly dependent on light modulation frequency f from a dozen of Hz to a few kHz. The same is found for diaphragms made of film poled in dc field when the side being positive is illuminated, however, a low-frequency anomaly in p(f) is observed when the side being grounded during poling is illuminated. Poling-induced compensating charges, piled up at the crystalline phase of a semicrystalline polymer, influence the /spl beta/-relaxation in MHz frequency range.\",\"PeriodicalId\":425004,\"journal\":{\"name\":\"9th International Symposium on Electrets (ISE 9) Proceedings\",\"volume\":\"81 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"9th International Symposium on Electrets (ISE 9) Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISE.1996.578214\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"9th International Symposium on Electrets (ISE 9) Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISE.1996.578214","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Pyroelectric response and dielectric behaviour of corona charged and dc field polarized PVDF films
Dielectric relaxation and pyroelectric response of PVDF films poled in low dc field and corona charged was studied. Pyroelectric coefficient p of corona charged PVDF diaphragm is weakly dependent on light modulation frequency f from a dozen of Hz to a few kHz. The same is found for diaphragms made of film poled in dc field when the side being positive is illuminated, however, a low-frequency anomaly in p(f) is observed when the side being grounded during poling is illuminated. Poling-induced compensating charges, piled up at the crystalline phase of a semicrystalline polymer, influence the /spl beta/-relaxation in MHz frequency range.
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