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InGaAs/InGaAsP超晶格薄膜导热系数测试

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摘要 采用3ω方法在100~320 K温度范围内测试了不同周期长度的InGaAs/InGaAsP超晶格薄膜的导热系数.结果表明对于周期性超晶格结构,随着温度的升高,热传导能力下降;比较周期长度不同的超晶格结构的测试结果,发现导热系数会随着周期长度的增大而减小,并在某一周期长度取得最小值,但随着周期长度的进一步增大,导热系数又出现上升趋势,表明在长周期超晶格结构中界面热阻是影响声子传输的主要因素.理论计算表明,对于短周期的超晶格结构,Bragg反射是造成产生最小值的原因之一,由于声子穿透率的下降,造成导热系数随着周期长度的增大而减小.理论与实验研究结果表明,随着周期长度的增大,声子的传输规律由声子的波动性过渡到粒子性,这对实现声子的剪裁具有重要意义,为设计超晶格结构提供理论基础.
出处 《科学通报》 EI CAS CSCD 北大核心 2006年第13期1601-1605,共5页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:50275026,50475077,50505007,50506008) 国家重点基础研究发展规划(编号:2006CB300404) 江苏省自然科学基金(批准号:BK2002060) 教育部博士点基金(批准号:20050286019) 新世纪优秀人才支持计划(编号:NCET-04-0470)资助项目.
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参考文献28

  • 1Hicks L D,Harman T C,Dresselhaus M S.Use of quantum-well superlattices to obtain a high figure of merit from nonconventional thermoelectric materials.Appl Phys Lett,1993,63:3230-3232
  • 2Hicks L D,Dresselhaus M S.Effect of quantum-well structures on the thermoelectric figure of merit.Phys Rev B,1993,47:12727-12731
  • 3Yao T.Thermal properties of AlAs/GaAs superlattices.Appl Phys Lett,1987,51:1798-1800
  • 4Capinski W S,Maris H J.Thermal conductivity of GaAs/AlAs superlattices.Physica B,1996,219-220:699-701
  • 5Capinski W S,Maris H J,Ruf T.Thermalconductivity measurements of GaAs/AlAs superlattices using a picosecond optical pump-and-probe technique.Phys Rev B,1999,59:8105-8113
  • 6Chen G,Tien C L,Wu X.Thermal diffusivity measurement of GaAs/AlGaAs thin-film structures.J Heat Transfer,1994,116:325-331
  • 7Yu X Y,Chen G,Verma A.Temperature dependence of thermophysical properties of GaAs/AlAs periodic structure.Appl Phys Lett,1995,67:3554-3556
  • 8Borca-Tasciuc T,Liu W,Liu J.Thermal conductivity of symmetrically strained Si/Ge superlattices.Superlatt Microstruct,2000,28:199-206
  • 9Chakraborty S,Kleint C A,Heinrich A.Thermal conductivity in strain symmetrized Si/Ge superlattices on Si (111).Appl Phys Lett,2003,83:4184-4186
  • 10Lee S M,Cahill D G,Venkatasubramanian R.Thermal conductivity of Si-Ge superlattices.Appl Phys Lett,1997,70:2957-2959

二级参考文献16

  • 1Hatta Ichiro, Kato Ryozo, Maesono Akikazu, et al.Thermal diffusivity measurement of thin films by means of an ac calorimetric method [ J ]. Review of Scientific Instruments, 1985, 56(8) :1643 - 1647.
  • 2Kading O W, Skurk H, Goodson K E. Thermal conduction in metallized silicon-dioxide layers on silicon[ J]. Applied Physics Letters, 1994, 65 ( 13 ) : 1629 -1631.
  • 3Zhang Xiang, Gridgoropoulos Costas P. Thermal conductivity and diffusivity of free-standing silicon nitride thin films[ J ]. Review of Scientific Instruments, 1995, 66(2) :1115 - 1120.
  • 4Yu X Y, Zhang L, Chen G. Thermal-wave measurement of thin-film thermal diffusivity with different laser beam configurations [ J ]. Review of Scientific Instruments, 1996, 67(6) :2312 -2316.
  • 5Lee S M, Cahill David G. Thermal conductivity of sputtered oxide films[ J ]. Physical Review B, 1995, 52( 1 ) :253 - 257.
  • 6Cahill David G. Nanoscale thermal transport [ J ]. Journal of Applied Physics, 2003, 93(2) :793 - 818.
  • 7Cahill David G, Pohl R O. Thermal conductivity of amorphous solids above the plateau [ J ]. Physical Review B, 1987, 35(8) : 4067-4073.
  • 8Kurabayashi Ktasuo, Touzelbaev Maxat, Goodson Kenneth E, et al. Measurement of the thermal conductivity anisotropy in polyimide films [ J ]. IEEE Journal of Microelectromechanical systems, 1999, 8(2) : 180 - 191.
  • 9Huxtable S T, Abramson A R, Tien C L, et al. Thermal conductivity of Si/SiGe and SiGe/SiGe superlattices[J].Applied Physics Letters, 2002, 80(10) : 1737-1739.
  • 10Song D W, Radetic T, Chen G, et al. Thermal conductivity of nanoporous bismuth thin films[J]. Applied Physics Letters, 2004, 84( 11 ) : 1883 - 1885.

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