Impact of laser pulse repetition frequency on nucleation and growth of LiNbO_(3)thin films  

作　　者：Z.Vakulov D.Khakhulin A.Geldash R.V.Tominov V.S.Klimin V.A.Smirnov O.A.Ageev 

机构地区：[1]Southern Scientific Center of RAS,No.41 Chekhov Ave.Rostov-on-Don,344006,Russian Federation [2]Laboratory of Functional Nanomaterials Technology Southern Federal University,No.2 Shevchenko Str.Taganrog,347922,Russian Federation [3]Research and Education Center“Nanotechnologies”Southern Federal University,No.2 Shevchenko Str.Taganrog,347922,Russian Federation [4]Institute of Nanotechnologies,Electronics,and Equipment Engineering Southern Federal University,No.2 Shevchenko Str.Taganrog 347922,Russian Federation

出　　处：《Journal of Advanced Dielectrics》2022年第2期36-42,共7页先进电介质学报（英文）

基　　金：The reported study was funded by the Russian Foundation for Basic Research,projects numbers 19-38-60052,18-29-11019 mk,and 19-29-03041 mk,and partially supported by Grant of the President of the Russian Federation MK-6252.2021.4.

摘　　要：This paper reports the impact of the laser pulse repetition frequency on growth processes,morphological and electro-physical parameters of nanocrystalline LiNbO_(3)thin films obtained by the pulsed laser deposition technique.It was found that the nucleation process in LiNbO_(3)films could controllably change by increasing the laser pulse repetition frequency.The film obtained at the repetition frequency of 4 Hz consists of local islands and clusters with a diameter of 118.1±5.9 nm.Nanocrystalline films,grown at the repetition frequency of 10 Hz,possess a continuous granular structure with a grain diameter of 235±11.75 nm.Achieved results can be used for the development of promising“green”energy devices based on lead-free piezoelectric energy harvesters.

关 键 词：Thin films lead-free ferroelectrics pulsed laser deposition energy harvesting PIEZOELECTRICS 

分 类 号：TN24[电子电信—物理电子学]