Pb[（Mg1/3Nb2/3）0.70 Ti 0.30] O3晶体的大光伏效应和滞后光生载流子动力学
Larger photovoltaic effect and hysteretic photocarrier dynamics in Pb[(Mg1/3Nb2/3)0.70Ti0.30]O3 crystal
摘要：
在最近发现的Pb[（Mg 1/3 Nb 2/3）0.68Ti0.32]O3晶体中的体光伏效应之后，我们在这里报告了在相关的组成Pb[（Mg 1/3 Nb 2/3）0.7Ti0.30]O3中的光致变色性以及其极化依赖性的一个数量级以上的改善。光电流测量与光强度揭示了一个迷人的滞后载流子动力学清楚地表明电荷产生，捕获和释放过程。
英文摘要：
Following the recent discovery of a bulk photovoltaic effect in the Pb[(Mg1/3Nb2/3)0.68Ti0.32]O3 crystal, we report here more than one order of magnitude improvement of photovoltaicity as well as its poling dependence in the related composition of lead magnesium niobate-lead titanate noted Pb[(Mg1/3Nb2/3)0.7Ti0.30]O3. Photocurrent measurements versus light intensity reveal a fascinating hysteretic charge carriers dynamics clearly demonstrating charge generation, trapping and release processes.
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