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Promising ferroelectric and piezoelectric response of Cr-doped ZnO nanofiller-incorporated PVDF flexible and laminated nanocomposite system
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2024-08-30 , DOI: 10.1039/d4cp02963a Tanmoy Chakraborty 1 , Suman Saha 1 , Dhananjoy Mondal 1 , Subhojit Dutta 1 , Abhik Sinha Mahapatra 2 , Kishan Gupta 1 , Partha Sona Maji 3 , Sukhen Das 1 , Soumyaditya Sutradhar 1
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2024-08-30 , DOI: 10.1039/d4cp02963a Tanmoy Chakraborty 1 , Suman Saha 1 , Dhananjoy Mondal 1 , Subhojit Dutta 1 , Abhik Sinha Mahapatra 2 , Kishan Gupta 1 , Partha Sona Maji 3 , Sukhen Das 1 , Soumyaditya Sutradhar 1
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Cr3+-doped ZnO (CZ) nanoparticles are prepared using hydrothermal and co-precipitation techniques. The desired crystallographic phase of the nanoparticles is confirmed using X-ray diffraction study. Rod-shaped and spherical morphologies of CZ nanoparticles prepared using hydrothermal and co-precipitation techniques were confirmed through FESEM observation. Each type of nanoparticle was taken separately in PVDF to understand the characteristic properties, such as dielectric, piezoelectric, and ferroelectric properties of the resultant CZ-PVDF nanocomposite films. All the nanocomposite films comprising rod-shaped or spherical CZ nanoparticles show butterfly loops with a low leakage current density of 10−5 A m−2 at a maximum electric field of 100 kV m−2 under J–E measurement. These findings suggest that the polarization property of CZ-PVDF nanocomposite films can be obtained at a high external electric field without causing electric breakdown in the samples. Dielectric permittivity as a function of temperature increases with an increase in the loading percentage of both rod-shaped or spherical CZ nanofillers in PVDF. Polarization response also improves with an increase in the loading percentage of CZ nanofillers in PVDF. In particular, the rod-shaped CZ nanofillers in PVDF with a higher loading percentage (CZHP2) result in a maximum polarization of (10 ± 0.29) × 10−4 μC cm−2, remanent polarization of (2 ± 0.04) × 10−4 μC cm−2, and coercive field of (10 ± 0.1) kV cm−1 at a maximum electric field of 50 kV cm−1. The CZHP2 nanocomposite film has a piezoelectric coefficient (d33) of (25 ± 0.24) pC N−1 and a power density of 1278.90 W m−3. These results indicate that the nanocomposite films have potential application in piezoelectric energy harvesters, offering a possible solution to the energy issue faced by modern society.
中文翻译：
掺有 Cr 的 ZnO 纳米填料的 PVDF 柔性层状纳米复合材料系统具有良好的铁电和压电响应
采用水热法和共沉淀技术制备了 Cr 3+掺杂的 ZnO (CZ) 纳米粒子。使用 X 射线衍射研究确认了纳米颗粒所需的晶相。通过FESEM观察证实了利用水热和共沉淀技术制备的CZ纳米粒子的棒状和球形形貌。将每种类型的纳米颗粒分别放入 PVDF 中，以了解所得 CZ-PVDF 纳米复合材料薄膜的特性，例如介电、压电和铁电特性。所有包含棒状或球形CZ纳米粒子的纳米复合材料薄膜在J - E测量下在100 kV m -2的最大电场下均显示出具有10 -5 A m -2的低漏电流密度的蝶形环。这些发现表明，CZ-PVDF 纳米复合薄膜的偏振特性可以在高外部电场下获得，而不会引起样品的电击穿。作为温度函数的介电常数随着 PVDF 中棒状或球形 CZ 纳米填料的负载百分比的增加而增加。随着 PVDF 中 CZ 纳米填料负载百分比的增加，偏振响应也得到改善。特别是，PVDF中具有较高负载百分比（CZHP2）的棒状CZ纳米填料导致最大极化为（10±0.29）×10 -4 μC cm -2 ，剩余极化为（2±0.25）。04)×10 -4 μC cm -2 ，最大电场50 kV cm -1时矫顽场为(10±0.1) kV cm -1 。 CZHP2纳米复合材料薄膜的压电系数( d 33 )为(25±0.24)pC N -1 ，功率密度为1278.90 W m -3 。这些结果表明纳米复合薄膜在压电能量收集器中具有潜在的应用前景，为现代社会面临的能源问题提供了可能的解决方案。
更新日期：2024-08-30
中文翻译：
掺有 Cr 的 ZnO 纳米填料的 PVDF 柔性层状纳米复合材料系统具有良好的铁电和压电响应
采用水热法和共沉淀技术制备了 Cr 3+掺杂的 ZnO (CZ) 纳米粒子。使用 X 射线衍射研究确认了纳米颗粒所需的晶相。通过FESEM观察证实了利用水热和共沉淀技术制备的CZ纳米粒子的棒状和球形形貌。将每种类型的纳米颗粒分别放入 PVDF 中，以了解所得 CZ-PVDF 纳米复合材料薄膜的特性，例如介电、压电和铁电特性。所有包含棒状或球形CZ纳米粒子的纳米复合材料薄膜在J - E测量下在100 kV m -2的最大电场下均显示出具有10 -5 A m -2的低漏电流密度的蝶形环。这些发现表明，CZ-PVDF 纳米复合薄膜的偏振特性可以在高外部电场下获得，而不会引起样品的电击穿。作为温度函数的介电常数随着 PVDF 中棒状或球形 CZ 纳米填料的负载百分比的增加而增加。随着 PVDF 中 CZ 纳米填料负载百分比的增加，偏振响应也得到改善。特别是，PVDF中具有较高负载百分比（CZHP2）的棒状CZ纳米填料导致最大极化为（10±0.29）×10 -4 μC cm -2 ，剩余极化为（2±0.25）。04)×10 -4 μC cm -2 ，最大电场50 kV cm -1时矫顽场为(10±0.1) kV cm -1 。 CZHP2纳米复合材料薄膜的压电系数( d 33 )为(25±0.24)pC N -1 ，功率密度为1278.90 W m -3 。这些结果表明纳米复合薄膜在压电能量收集器中具有潜在的应用前景，为现代社会面临的能源问题提供了可能的解决方案。
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