首页|Structural engineering of vertically aligned nanocomposite films fabricated via magnetron and pulsed laser co-deposition for microwave application
Structural engineering of vertically aligned nanocomposite films fabricated via magnetron and pulsed laser co-deposition for microwave application
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Microwaves are often used in communication engineering,including in microwave relays as well as mul-tichannel,mobile,and satellite communications.To meet the demand for a"small,light,thin,and precise"modern electronic machine,developing highly tunable microwave materials to manufacture miniaturized microwave devices has become a top priority.Ferroelectric materials are excellent microwave materi-als,showing outstanding dielectric properties and tunability.Introducing low dielectric loss oxides in the construction of vertical self-assembly nanocomposites(VSNs)effectively improves their tunability and reduces dielectric loss.However,the optimal doping content of simple VSN films limits further improve-ment of tunability.Herein,we propose a strategy-gradient VSN to achieve combined improvement in tunability and dielectric constant by designing a sputtering and pulsed laser co-deposition.The resulting VSN composite film has a dielectric constant of 428.08,a dielectric loss of 0.0212,and a tunability of 78.69％.Our results contribute to the development of filters and have broad application prospects in the microwave industry.
Changliang Li、Yong Sun、Xiuhong Dai、Yinglong Wang、Taifu Feng、Jianxin Guo、Baoting Liu、Xiaobing Yan
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Hebei Provincial Key Lab of Optoelectronic Information Materials,College of Physics Science and Technology,Hebei University,Baoding 071002,China
Key Laboratory of Brain-Like Neuromorphic Devices and Systems of Hebei Province College of Physics Science and Technology Hebei University,Baoding 071002,China
Department of Primary Education,Baoding Preschool Teachers College,Baoding 072750,China
NSFCNSF of Hebei ProvincePostgraduate Innovation Fund Project of Hebei UniversityProject of Distinguished Young of Hebei Province
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