Effects of Humidity and Domain Polarity on Retention Loss in Ferroelectric P(VDF-TrFE) Thin Films
| Autor: | Kwang-Won Park, Jongin Hong, Byung-Hyuk Jun, Seonhyoung Kim, Yukwang Kim |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Materials science Analytical chemistry General Physics and Astronomy Humidity 02 engineering and technology Polymer 021001 nanoscience & nanotechnology 01 natural sciences Ferroelectricity Piezoresponse force microscopy chemistry Desorption 0103 physical sciences Relative humidity Absorption (chemistry) Thin film 0210 nano-technology |
| Zdroj: | Journal of the Korean Physical Society. 77:78-81 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.77.78 |
| Popis: | We investigate over a period of a 500 hours the effect of relative humidity (RH) on the retention loss in ferroelectric P(VDF-TrFE) thin films by using piezoresponse force microscopy (PFM). When the copolymer films are exposed to more water molecules, more domain reversal is observed, especially in upward domains. Interestingly, the retention loss behavior based on a stretched exponential model can be distinctly classified depending on the RH conditions. We conjecture that the absorption and the desorption of water molecules in the P(VDF-TrFE) polymers have a great influence on the reversal of ferroelectric domains. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink