Laser-induced transverse voltage effect in c-axis inclined CuCr0.98Mg0.02O2 thin films with dominant phonon thermal conductivity

2021 ◽  
Vol 130 (14) ◽  
pp. 143104
Author(s):  
Y. D. Hu ◽  
Y. Li ◽  
H. R. Wu ◽  
Y. Y. Tang ◽  
K. Fan ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Phonon Thermal Conductivity

Enhancement of In-Plane Thermal Conductivity of Thin Films via Surface Phonon-Polaritons

2005 ◽  
Author(s):  
Dye-Zone A. Chen ◽  
Arvind Narayanaswamy ◽  
Gang Chen
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Total Thermal Conductivity ◽  
Phonon Thermal Conductivity ◽  
Amorphous Thin Films ◽  
Surface Phonon ◽  
Amorphous Silicon Dioxide ◽  
Surface Phonon Polaritons ◽  
Phonon Polaritons ◽  
Conductivity Of Thin Films

We predict theoretically that the effective in-plane thermal conductivity of crystalline and amorphous thin films can be increased by surface phonon-polaritons significantly beyond their intrinsic bulk values. We show that the thermal conductivity due to surface phonon-polaritons increases with decreasing film thickness. In particular, for a 40 nm thick film of amorphous silicon dioxide, we calculate a total thermal conductivity of 4 W m−1 K−1 at 500 K, which is an increase of ~100% over the intrinsic phonon thermal conductivity.

scholarly journals Room-Temperature Voltage Tunable Phonon Thermal Conductivity via Reconfigurable Interfaces in Ferroelectric Thin Films

Nano Letters ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 1791-1795 ◽  
Author(s):  
Jon F. Ihlefeld ◽  
Brian M. Foley ◽  
David A. Scrymgeour ◽  
Joseph R. Michael ◽  
Bonnie B. McKenzie ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Room Temperature ◽  
Ferroelectric Thin Films ◽  
Phonon Thermal Conductivity

Cross-plane thermal conductivity of thin films characterized by Flash DSC measurement

2019 ◽  
Vol 677 ◽  
pp. 21-25 ◽  
Author(s):  
Yucheng He ◽  
Xiaoheng Li ◽  
Ling Ge ◽  
Qinyun Qian ◽  
Wenbing Hu
Keyword(s):  
Thin Films ◽  
Thermal Conductivity ◽  
Conductivity Of Thin Films

scholarly journals Reduction of thermal conductivity in ferroelectric SrTiO3 thin films

2020 ◽  
Vol 4 (5) ◽  
Author(s):  
Alexandros Sarantopoulos ◽  
Dipanjan Saha ◽  
Wee-Liat Ong ◽  
César Magén ◽  
Jonathan A. Malen ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Conductivity

scholarly journals Lattice vibrational modes and phonon thermal conductivity of single-layer GaGeTe

2020 ◽  
Vol 6 (4) ◽  
pp. 723-728
Author(s):  
Jingyu Li ◽  
Peng-Fei Liu ◽  
Chi Zhang ◽  
Xiaobo Shi ◽  
Shujuan Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Single Layer ◽  
Vibrational Modes ◽  
Phonon Thermal Conductivity

Determination of Thermal Conductivity of Amorphous Silicon Thin Films via Non-Contacting Optical Probing

2006 ◽  
Vol 326-328 ◽  
pp. 689-692
Author(s):  
Seung Jae Moon
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermal Conductivity ◽  
Amorphous Silicon ◽  
Optical Transmission ◽  
Film Deposition ◽  
Transmission Measurement ◽  
Conductive Heat ◽  
Optical Transmission Measurement

The thermal conductivity of amorphous silicon (a-Si) thin films is determined by using the non-intrusive, in-situ optical transmission measurement. The thermal conductivity of a-Si is a key parameter in understanding the mechanism of the recrystallization of polysilicon (p-Si) during the laser annealing process to fabricate the thin film transistors with uniform characteristics which are used as switches in the active matrix liquid crystal displays. Since it is well known that the physical properties are dependent on the process parameters of the thin film deposition process, the thermal conductivity should be measured. The temperature dependence of the film complex refractive index is determined by spectroscopic ellipsometry. A nanosecond KrF excimer laser at the wavelength of 248 nm is used to raise the temperature of the thin films without melting of the thin film. In-situ transmission signal is obtained during the heating process. The acquired transmission signal is fitted with predictions obtained by coupling conductive heat transfer with multi-layer thin film optics in the optical transmission measurement.

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