Modulation of 2DEG in AlGaN/GaN heterostructures by P(VDF-TrFE)

作者: Ze-gao Wang , Yuan-fu Chen , Chao Chen , Xin Hao , Xing-zhao Liu

DOI: 10.1088/0268-1242/26/2/025010

关键词: Electrical resistivity and conductivityAlgan ganFerroelectricityHeterojunctionOptoelectronicsMaterials scienceElectrical transportElectric fieldPolarization (waves)Polymer

摘要: A nearly square-like ferroelectric hysteretic loop of spin-coated and crystallized poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) with a remnant polarization 2 Pr 20 µC cm−2 was obtained. The electrical transport properties the P(VDF-TrFE)/AlGaN/GaN structure were investigated. results show that carrier density Ns, mobility μ, resistivity ρ AlGaN/GaN 2DEG can be directly strongly modulated by an external electric field via polymer P(VDF-TrFE): exhibit closed loops under tuned as large 235% only changing field.

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