研究和评论:材料科学杂雷竞技苹果下载志》上
菜单ISSN: 2321 - 6212
ISSN: 2321 - 6212
Min-Hui周、吴Chang-Mou Tolesa成立Chala和Wen-Yuan曾庆红
国立台湾科技大学,中国
ScientificTracks抽象:启J垫。Sci >
DOI:10.4172 / 2321 - 6212 c1 - 008
电子市场的强大动力和趋势发展中便携和可穿戴电子设备刺激研究兴趣灵活、可再生和可持续的能源。聚(亚乙烯基二氟化物)(PVDF)是一个热电和压电聚合物和灵活的电子产品的广泛调查,因为其高灵活性,生物相容性和简单的生产。热电材料PVDF等可以有效地将热能转换成一个临时电压加热或冷却时。如果温度在其新值保持不变,由于泄漏电流热电电压逐渐消失。因此,一种新的加热技术取代传统的光辐照等重要的导电加热方法和导致穷人热导电聚合物PVDF与反复快速加热和冷却的行为。高效的光热的转换材料减少氧化钨(WO2.72),拥有60°C的温度变化在30秒内下辐射红外线(IR)是在我们的研究小组开发的。因此,它是非常有趣的研究热释电响应实际上电纺PVDF膜nanofibrous整合与有效的光热的转换(WO2.72)红外辐射材料。在这项研究中,一种新型柔性热电发电机是由实际上电纺PVDF膜nanofibrous整合各种WO2.72粉质量分数。WO2.72和电子纺线的影响(ES)的晶体结构和热电性能参数对PVDF / WO2.72 nanofibrous膜被检查。结果表明,ES有效诱导我PVDF²步和一部分²规律进一步从79%上升到84%,与7 wt % WO2.72添加。 Besides, the temperature of electrospun PVDF/WO2.72 nanofibrous membrane increased rapidly and reached 98.7 °C from room temperature while pure PVDF nanofibrous membranes only reach to 60.5 °C after 300 seconds under IR radiation. It demonstrated that WO2.72 presents excellent photo-thermal conversion characteristics due to the presence of free electrons or oxygen-deficiency-induced small polarons. As for the pyroelectricity measurement, the PVDF/WO2.72 nanofibrous membranes were sandwiched between two electrodes and the output voltage was measured by repeated heating and cooling process. Controlling by IR radiation, the temperature of the as received PVDF pyroelectric unit with WO2.72 was increased from room temperature to 51.6 °C during heating process and then rapidly cooled down to 29.9 °C within 3 minutes. When the temperature change is 21.7 °C, the maximum output voltage of the pyroelectric unit with WO2.72 reached to 80 mV which is largely enhancement compare to 30 mV of the unit without WO2.72 with 10.1 °C temperature change. Hence, the PVDF/WO2.72 with higher temperature change induces stronger pyroelectric response than pure PVDF sample. In addition, the PVDF/ WO2.72 also shows good stability and durability of pyroelectric power output.
Min-Hui周正在追求她的博士学位的材料科学与工程系国立台湾科技大学。她目前的研究兴趣在压电材料,电纺的技术及其应用。她有著名期刊上发表了2篇论文,申请2个发明专利。