Pub Date : 2023-04-17DOI: 10.1142/s2010135x23410047
S. Tofail
Ferroelectricity in biological system has been anticipated both theoretically and experimentally over the past few decades. Claims of ferroelectricity in biological systems have given rise to confusion and methodological controversy. Over the years, a “loop” of induced polarization in response to a varying applied electrical field and a consequent polarization reversal has prompted many researchers to claim ferroelectricity in biological structures and their building blocks. Other observers were skeptical about the methodology adopted in generating the data and questioned the validity of the claimed ferroelectricity as such, “loop” can also be obtained from linear capacitors. In a paper with somewhat tongue-in-cheek title, Jim Scott showed that ordinary banana peels could exhibit closed loops of electrical charge which closely resemble and thus could be misinterpreted as ferroelectric hysteresis loops in barium sodium niobate, BNN paraphrasing it as “banana”. In this paper, we critically review ferroelectricity in biological system and argue that knowing the molecular and crystalline structure of biological building blocks and experimenting on such building blocks may be the way forward in revealing the “true” nature of ferroelectricity in biological systems.
{"title":"Ferroelectricity in biological building blocks: Slipping on a banana peel?","authors":"S. Tofail","doi":"10.1142/s2010135x23410047","DOIUrl":"https://doi.org/10.1142/s2010135x23410047","url":null,"abstract":"Ferroelectricity in biological system has been anticipated both theoretically and experimentally over the past few decades. Claims of ferroelectricity in biological systems have given rise to confusion and methodological controversy. Over the years, a “loop” of induced polarization in response to a varying applied electrical field and a consequent polarization reversal has prompted many researchers to claim ferroelectricity in biological structures and their building blocks. Other observers were skeptical about the methodology adopted in generating the data and questioned the validity of the claimed ferroelectricity as such, “loop” can also be obtained from linear capacitors. In a paper with somewhat tongue-in-cheek title, Jim Scott showed that ordinary banana peels could exhibit closed loops of electrical charge which closely resemble and thus could be misinterpreted as ferroelectric hysteresis loops in barium sodium niobate, BNN paraphrasing it as “banana”. In this paper, we critically review ferroelectricity in biological system and argue that knowing the molecular and crystalline structure of biological building blocks and experimenting on such building blocks may be the way forward in revealing the “true” nature of ferroelectricity in biological systems.","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"41 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76227734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-15DOI: 10.1142/s2010135x23410084
G. Gidion, T. Aftab, L. Reindl, S. Rupitsch
{"title":"Resonance phenomena in dielectric media: A review and comparison of acoustic and electromagnetic modes","authors":"G. Gidion, T. Aftab, L. Reindl, S. Rupitsch","doi":"10.1142/s2010135x23410084","DOIUrl":"https://doi.org/10.1142/s2010135x23410084","url":null,"abstract":"","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"69 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80032627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-15DOI: 10.1142/s2010135x23410060
B. Ploss, D. Smykalla, S. Engel
{"title":"Structure and ferroelectric properties of P(VDF-TrFE) films prepared under different conditions - Effect of filtration of the copolymer solution","authors":"B. Ploss, D. Smykalla, S. Engel","doi":"10.1142/s2010135x23410060","DOIUrl":"https://doi.org/10.1142/s2010135x23410060","url":null,"abstract":"","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"62 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81353291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-15DOI: 10.1142/s2010135x23410059
Chao Wu, Ajinkya A. Deshmukh, Lihua Chen, R. Ramprasad, G. Sotzing, Yang Cao
Flexible dielectric polymers that can withstand high electric field and simultaneously have high dielectric constant are desired for high-density energy storage. Here, we systematically investigated the impact of oxygen-containing ether and carbonyl groups in the backbone structure on dielectric properties of a series of cyclic olefin. In comparison to the influence of the –CF 3 pendant groups that had more impact on the dielectric constant rather than the band gap, the change of the backbone structure affected both the dielectric constant and band gaps. The one polymer with ether and carbonyl groups in the backbone has the largest band gap and highest discharge efficiency, while it has the lowest dielectric constant. The polymer without any ether groups in the backbone has the smallest band gap and lowest discharge efficiency, but it has the highest dielectric constant. Polymers that have no dipolar relaxation exhibit an inversely correlated dielectric constant and band gap. Enhancing the dipolar relaxation through rational molecular structure design can be a novel way to break through the exclusive constraint of dielectric constant and band gap for high-density energy storage.
{"title":"Impact of Oxygen Containing Carbonyl and Ether Groups on Dielectric Properties of Poly(oxa)norbornene Cyclic Olefins","authors":"Chao Wu, Ajinkya A. Deshmukh, Lihua Chen, R. Ramprasad, G. Sotzing, Yang Cao","doi":"10.1142/s2010135x23410059","DOIUrl":"https://doi.org/10.1142/s2010135x23410059","url":null,"abstract":"Flexible dielectric polymers that can withstand high electric field and simultaneously have high dielectric constant are desired for high-density energy storage. Here, we systematically investigated the impact of oxygen-containing ether and carbonyl groups in the backbone structure on dielectric properties of a series of cyclic olefin. In comparison to the influence of the –CF 3 pendant groups that had more impact on the dielectric constant rather than the band gap, the change of the backbone structure affected both the dielectric constant and band gaps. The one polymer with ether and carbonyl groups in the backbone has the largest band gap and highest discharge efficiency, while it has the lowest dielectric constant. The polymer without any ether groups in the backbone has the smallest band gap and lowest discharge efficiency, but it has the highest dielectric constant. Polymers that have no dipolar relaxation exhibit an inversely correlated dielectric constant and band gap. Enhancing the dipolar relaxation through rational molecular structure design can be a novel way to break through the exclusive constraint of dielectric constant and band gap for high-density energy storage.","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"46 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86402235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-15DOI: 10.1142/s2010135x23410072
R. Altafim, R. Altafim
{"title":"History and recent progress in ferroelectrets produced in Brazil","authors":"R. Altafim, R. Altafim","doi":"10.1142/s2010135x23410072","DOIUrl":"https://doi.org/10.1142/s2010135x23410072","url":null,"abstract":"","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"1 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87464887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-07DOI: 10.1142/s2010135x23500121
{"title":"High piezoelectricity performance in PSBZT ceramic for ultrasonic transducer","authors":"","doi":"10.1142/s2010135x23500121","DOIUrl":"https://doi.org/10.1142/s2010135x23500121","url":null,"abstract":"","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"1 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88617845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-08DOI: 10.1142/s2010135x23500091
Xinyun Bu, C. Yang, Mengjia Fan, Wenxuan Wang, Xiujuan Lin, Shi-feng Huang
{"title":"Ferroelectric and piezoelectric properties of lead-free Li0.06(K0.5Na0.5)0.94NbO3 thin films","authors":"Xinyun Bu, C. Yang, Mengjia Fan, Wenxuan Wang, Xiujuan Lin, Shi-feng Huang","doi":"10.1142/s2010135x23500091","DOIUrl":"https://doi.org/10.1142/s2010135x23500091","url":null,"abstract":"","PeriodicalId":14871,"journal":{"name":"Journal of Advanced Dielectrics","volume":"11 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88317943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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