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Soft x-ray spectroscopy studies of n...

Newby, David, Jr.

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Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation./
作者:	Newby, David, Jr.
面頁冊數:	138 p.
附註:	Source: Dissertation Abstracts International, Volume: 76-07(E), Section: B.
Contained By:	Dissertation Abstracts International76-07B(E).
標題:	Condensed matter physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3684847
ISBN:	9781321602746

Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation.
Newby, David, Jr.

Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation. - 138 p.

Source: Dissertation Abstracts International, Volume: 76-07(E), Section: B.

Thesis (Ph.D.)--Boston University, 2015.

Soft x-ray spectroscopy can provide a wealth of information on the electronic structure of solids. In this work, a suite of soft x-ray spectroscopies is applied to organic and inorganic materials with potential applications in electronic and energy generation devices. Using the techniques of x-ray absorption (XAS), x-ray emission spectroscopy (XES), and x-ray photoemission spectroscopy (XPS), the fundamental properties of these different materials are explored.

ISBN: 9781321602746Subjects--Topical Terms:

3173567
Condensed matter physics.

Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation.
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245 1 0 $a Soft x-ray spectroscopy studies of novel electronic materials using synchrotron radiation.
300 $a 138 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-07(E), Section: B.
500 $a Adviser: Kevin E. Smith.
502 $a Thesis (Ph.D.)--Boston University, 2015.
520 $a Soft x-ray spectroscopy can provide a wealth of information on the electronic structure of solids. In this work, a suite of soft x-ray spectroscopies is applied to organic and inorganic materials with potential applications in electronic and energy generation devices. Using the techniques of x-ray absorption (XAS), x-ray emission spectroscopy (XES), and x-ray photoemission spectroscopy (XPS), the fundamental properties of these different materials are explored.
520 $a Cycloparaphenylenes (CPPs) are a recently synthesized family of cyclic hydrocarbons with very interesting properties and many potential applications. Unusual UV/Visible fluorescence trends have spurred a number of theoretical investigations into the electronic properties of the CPP family, but thus far no comprehensive electronic structure measurements have been conducted. XPS, XAS, and XES data for two varieties, [8]- and [10]-CPP, are presented here, and compared with the results of relevant DFT calculations.
520 $a Turning towards more application-centered investigations, similar measurements are applied to two materials commonly used in solid oxide fuel cell (SOFC) cathodes: La1-xSrxMnO 3 (LSMO) and La1-xSr1- xCo1-yFe yO3 (LSCF). Both materials are structurally perovskites, but they exhibit strikingly different electronic properties. SOFC systems very efficiently produce electricity by catalyzing reactions between oxygen and petroleum-based hydrocarbons at high temperatures (> 800 C). Such systems are already utilized to great effect in many industries, but more widespread adoption could be had if the cells could operate at lower temperatures. Understanding the electronic structure and operational evolution of the cathode materials is essential for the development of better low-temperature fuel cells.
520 $a LSCF is a mixed ion-electron conductor which holds promise for low-temperature SOFC applications. XPS spectra of LSCF thin films are collected as the films are heated and gas-dosed in a controlled environment. The surface evolution of these films is discussed, and the effects of different gas environments on oxygen vacancy concentration are elucidated.
520 $a LSMO is commonly used in commercial fuel cell devices. Here the resonant soft x-ray emission (RIXS) spectrum of LSMO is examined, and it is shown that the inelastic x-ray emission structure of LSMO arises from local atomic multiplet effects.
590 $a School code: 0017.
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Materials science. $3 543314
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690 $a 0794
710 2 $a Boston University. $b Physics GRS. $3 3181608
773 0 $t Dissertation Abstracts International $g 76-07B(E).
790 $a 0017
791 $a Ph.D.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3684847