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Ditemukan 10558 dokumen yang sesuai dengan query
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Yaws, Carl L.
"Covering more than 7,800 organic and inorganic chemicals and hydrocarbons, Transport properties of chemical and hydrocarbons, second edition is an essential volume for any chemist or chemical engineer. Spanning gases, liquids, and solids, the book covers all critical properties (including viscosity, thermal conductivity, and diffusion coefficient).
From C1 to C100 organics and Ac to Zr inorganics, the data in this handbook is a perfect quick reference for field, lab, or classroom use. By collecting a massive – but relevant – amount of information in one source, the handbook enables engineers to spend more time developing new designs and processes, and less time collecting vital properties data."
Oxford: Gulf Professional, 2014
e20427997
eBooks  Universitas Indonesia Library
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New York: Marcel Dekker, 1993
R 660 INO
Buku Referensi  Universitas Indonesia Library
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Gallant, Robert W.
Houston, Texas: Gulf Pub.Co., 1968
547.01 GAL p I (1)
Buku Teks  Universitas Indonesia Library
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Jain, Gian Chand
New Delhi: McGraw-Hill, 1972
531.6 JAI t
Buku Teks  Universitas Indonesia Library
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Shuai, Zhigang
"This volume describes recent progresses in Prof. Shuai’s group in developing computational tools to assess the intrinsic carrier mobility for organic and carbon materials at the first-principles level. According to the electron-phonon coupling strength, the charge transport mechanism is classified into three different categories, namely, the localized hopping model, the extended band model, and the polaron model. For each of them, a corresponding theoretical approach is developed and implemented into typical examples."
Heidelberg : Springer, 2012
e20406090
eBooks  Universitas Indonesia Library
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Lewis, Richard J.
New York: Wiley-Interscience, 2002
R 604.7 LEW h
Buku Referensi  Universitas Indonesia Library
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Amsterdam: North-Holland Publishing, 1980
R 621.381 5 HAN III (1)
Buku Referensi  Universitas Indonesia Library
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Annamaria Bupu
"

Diantara tiga struktur TiO2, anatase TiO2 telah mendapat banyak perhatian karena sifatnya yang menarik serta potensinya untuk dimanfaatkan dalam berbagai aplikasi. Berbagai aplikasi tersebut bergantung pada sifat transpor material ini. Beberapa penelitian terdahulu mengenai sifat transport anatase TiO2 menunjukkan adanya kopling antara elektron dan fonon yang membentuk suatu kuasi partikel bernama polaron. Namun, belum ada penjelasan mengenai bagaimana keberadaan polaron pada anatase TiO2 mempengaruhi sifat transpor terutama resistivitas. Oleh karena itu, kami melakukan studi teoretik terhadap sifat transport anatase TiO2 yang dipengaruhi oleh kehadiran polaron. Kami menggunakan model Holstein, di mana menggunakan dua pita anatase TiO2 yaitu pita konduksi dan pita valensi yang diselesaikan dalam kerangka Dynamical Mean Field Theory (DMFT) untuk menjelaskan interaksi antar elektron dan fonon. Kami menghitung densitas keadaan sistem dan nilai dari invers kuadrat dari densitas keadaan yang berkorespondensi pada potensial kimia, di mana nilai ini sebanding dengan nilai resistivitas, sebagai fungsi temperatur. Dengan menggunakan nilai densitas pembawa muatan seperti pada eksperimen, hasil perhitungan menunjukkan pada resistivitas turun seiring dengan pertambahan temperatur pada seluruh nilai densitas pembawa muatan. Hal ini menunjukkan bahwa model yang digunakan hanya baik dalam mendeskripsikan efek trapping namun kurang baik dalam menjelaskan efek hamburan.


We present a theoretical study on the effects of electron-phonon interactions on the transport properties of anatase TiO2. Temperature-dependent resistivity measurement on anatase TiO2 thin film has shown that carrier concentrations and temperatures affect the resistivity of this material. At low carrier concentrations, a metal to insulator transition could be observed, while at high carrier concentrations this material only shows metal-like resistivity. In this study we aim to investigate the behavior of temperature-dependent resistivity at various carrier concentrations as revealed in the experimental study. We hypothesize that electron-phonon interactions with intermediate coupling constant govern the transport properties of this material. We construct Holstein model Hamiltonian incorporating both conduction and valence bands of anatase TiO2 within parabolic dispersion approximation. We solve the model within the Dynamical Mean Field Theory (DMFT). We calculate the density of states of the system and the corresponding inverse of the square of the density of states at the chemical potential, which is approximately proportional to the resistivity, as a function of temperature. Using carrier concentration values taken as in the experimental data, the calculations show that only the trends of decreasing resistivity with increasing temperature is found in all carrier concentrations value. The results show that our model is good in the describing the trapping effects due to the electron-phonon interaction but the model is doing poorly in capturing the scattering effects.

 

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2019
T54294
UI - Tesis Membership  Universitas Indonesia Library
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England: Gower, 1996
R 628.116 HAN
Buku Referensi  Universitas Indonesia Library
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