Electrical properties of photovoltaic lead lanthanum zirconate titanate in an electrostatic-optical motor application
Electrical properties of photovoltaic lead lanthanum zirconate titanate in an electrostatic-optical motor application
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DOI：
10.1016/s0955-2219(03)00474-6
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发表时间：
2004
影响因子：
5.7
通讯作者：
M. Ichiki;Y. Morikawa;Y. Mabune;T. Nakada
中科院分区：
文献类型：
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作者：
M. Ichiki;Y. Morikawa;Y. Mabune;T. Nakada
提出了一种静电-光学电机作为新型应用装置，它利用光伏锆钛酸铅镧（PLZT）作为从光能到电能的能量转换器。PLZT的光伏电功率输出被转换成静电力以旋转光学马达。观察到电机的运动，但反应是二阶的。为了实现高性能的静电-光学马达，必须解决许多问题。一个是提高光伏性能，以获得高旋转功率和快速响应速度。另一个问题是电动机的机械结构的合理性。最后一个问题是澄清铅镧锆钛酸盐的光伏效应的机制，以获得合适的样品尺寸和电路。研究了极化条件对PLZT薄膜性能的影响，以提高PLZT薄膜在电光马达中的应用。由于电导率，包括暗电导率和光伏电导率，在光伏效应的机制中起着至关重要的作用，光伏PLZT的电性能进行了定量研究。实验证实了电导率与光强之间存在线性关系。
An electrostatic-optical motor is proposed as a new application device that uses photovoltaic lead lanthanum zirconate titanate (PLZT) as an energy transducer from optical energy to electrical energy. The photovoltaic electrical power output of the PLZT is transformed into electrostatic force to rotate the optical motor. Movement of the motor was observed but the response was second order. A number of problems must be solved in order to realize a high-performance electrostatic-optical motor. One is the improvement of the photovoltaic properties for high rotation power and fast response speed. Another problem is justification of the mechanical construction of the motor. The last issue is clarification of the mechanisms of the photovoltaic effect of lead lanthanum zirconate titanate to obtain a suitable sample size and electrical circuit. The poling conditions on samples were investigated to improve PLZT for the electrostatic-optical motor. Since electrical conductivity, including dark conductivity and photovoltaic conductivity, plays an essential role in the mechanisms of the photovoltaic effect, the electrical properties of the photovoltaic PLZT were examined quantitatively. A linear relationship between electrical conductivity and light intensity was confirmed in the authors' experiments.