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Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications./
作者:	Moroz, Nicholas Anton.
面頁冊數:	1 online resource (157 pages)
附註:	Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
Contained By:	Dissertation Abstracts International78-11B(E).
標題:	Materials science. -
電子資源:	click for full text (PQDT)
ISBN:	9781369902914

Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications.
Moroz, Nicholas Anton.

Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications. - 1 online resource (157 pages)

Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

This work focuses on the development of ternary and quaternary chalcogenide compounds featuring transition metal cations through careful engineering of the electronic and thermal transport as well as magnetic properties by traditional solid-state doping techniques and novel template structure synthesis methods for improvements in thermoelectric performance, diluted magnetic semiconductors, and photovoltaic conversion.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781369902914Subjects--Topical Terms:

557839
Materials science.
Index Terms--Genre/Form:

554714
Electronic books.

Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications.
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100 1 $a Moroz, Nicholas Anton. $3 1182983
245 1 0 $a Engineered Transition Metal Chalcogenides for Photovoltaic, Thermoelectric, and Magnetic Applications.
264 0 $c 2017
300 $a 1 online resource (157 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
500 $a Adviser: Pierre Ferdinand Poudeu-Poudeu.
502 $a Thesis (Ph.D.) $c University of Michigan $d 2017.
504 $a Includes bibliographical references
520 $a This work focuses on the development of ternary and quaternary chalcogenide compounds featuring transition metal cations through careful engineering of the electronic and thermal transport as well as magnetic properties by traditional solid-state doping techniques and novel template structure synthesis methods for improvements in thermoelectric performance, diluted magnetic semiconductors, and photovoltaic conversion.
520 $a Presented here is an innovative low-temperature batch synthesis that was developed to create hexagonal nanoplatelets of thermoelectrically interesting CuAgSe. This process utilized room temperature ion exchange reactions to convert cubic Cu2-xSe nanoplatelets into CuAgSe by replacing a portion of the Cu+ ions with Ag+ while maintaining the morphology of the nanoplatelet. This simple reaction process offers an energy efficient and versatile strategy to create interesting materials with superior thermoelectric performance.
520 $a An investigation of the thermal and electronic transport of CuAl(S xSe1-x)2 solid solutions was also conducted. While these compounds yielded low thermal conductivity, they also exhibited low electronic conductivity. Doping with transition metals Ag, Hf, and Ti further reduced the thermal conductivity below 1 W/mK; however, most exciting was the determination that the thermal transport of the system could be modified by doping at the Al3+ site without affecting the electronic structure of the system, potentially leading to the use of CuAl(SxSe 1-x)2 as a heavily doped thermoelectric material.
520 $a The effect of local carrier concentration in the diluted magnetic semiconductor FeSb2Se4 was studied by substitution of In3+ for Sb3+. Using systematic Rietveld refinement, it was determined that In3+ resides in the semiconducting layer of the structure for concentrations of x ≤ 0.1, and the magnetic layer for x > 0.1. The increase in local carrier concentration has an appreciable effect on the electronic and magnetic properties of the material in a predictable manner based on the concentration of In3+.
520 $a Lastly, two new perovskite-like selenides were developed using low-pressure synthesis methods, needle-like SrHfSe3 and distorted perovskite BaHfSe3. The optical band gap of SrHfSe3 was experimentally determined to be 1.15 eV by doping of Sb3+ for Sr2+ , and 1.6 eV for BaHfSe3, both in the ideal range for visible light absorption. Thus, these new materials are intriguing candidates for thin-film photovoltaic applications.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Materials science. $3 557839
655 7 $a Electronic books. $2 local $3 554714
690 $a 0794
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Michigan. $b Materials Science and Engineering. $3 1148587
773 0 $t Dissertation Abstracts International $g 78-11B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10612158 $z click for full text (PQDT)