東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Effects of nanoassembly on the optoe...

Beal, Russell Joseph.

FindBook

Google Book

Amazon

博客來

Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices./
作者:	Beal, Russell Joseph.
面頁冊數:	210 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
Contained By:	Dissertation Abstracts International74-07B(E).
標題:	Engineering, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557508
ISBN:	9781303006401

Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices.
Beal, Russell Joseph.

Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices. - 210 p.

Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.

Thesis (Ph.D.)--The University of Arizona, 2013.

Quantum-scale semiconductors embedded in an electrically-active matrix have the potential to improve photovoltaic (PV) device power conversion efficiencies by allowing the solar spectral absorption and photocarrier transport properties to be tuned through the control of short and long range structure. In the present work, the effects of phase assembly on quantum confinement effects and carrier transport were investigated in CdTe - ZnO nanocomposite thin films for use as a spectrally sensitized n-type heterojunction element. The nanocomposites were deposited via a dual-source, sequential radio-frequency (RF) sputter technique that offers the unique opportunity for in-situ control of the CdTe phase spatial distribution within the ZnO matrix. The manipulation of the spatial distribution of the CdTe nanophase allowed for variation in the electromagnetic coupling interactions between semiconductor domains and accompanying changes in the effective carrier confinement volume and associated spectral absorption properties. Deposition conditions favoring CdTe connectivity had a red shift in absorption energy onset in comparison to phase assemblies with a more isolated CdTe phase.

ISBN: 9781303006401Subjects--Topical Terms:

1020744
Engineering, General.

Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices.
LDR:03563nmm a2200325 4500 001 2054995
005 20140730075622.5
008 170521s2013 ||||||||||||||||| ||eng d
020 $a 9781303006401
035 $a (MiAaPQ)AAI3557508
035 $a AAI3557508
040 $a MiAaPQ $c MiAaPQ
100 1 $a Beal, Russell Joseph. $3 3168597
245 1 0 $a Effects of nanoassembly on the optoelectronic properties of cadmium telluride - zinc oxide nanocomposite thin films for use in photovoltaic devices.
300 $a 210 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
500 $a Adviser: Barrett G. Potter.
502 $a Thesis (Ph.D.)--The University of Arizona, 2013.
520 $a Quantum-scale semiconductors embedded in an electrically-active matrix have the potential to improve photovoltaic (PV) device power conversion efficiencies by allowing the solar spectral absorption and photocarrier transport properties to be tuned through the control of short and long range structure. In the present work, the effects of phase assembly on quantum confinement effects and carrier transport were investigated in CdTe - ZnO nanocomposite thin films for use as a spectrally sensitized n-type heterojunction element. The nanocomposites were deposited via a dual-source, sequential radio-frequency (RF) sputter technique that offers the unique opportunity for in-situ control of the CdTe phase spatial distribution within the ZnO matrix. The manipulation of the spatial distribution of the CdTe nanophase allowed for variation in the electromagnetic coupling interactions between semiconductor domains and accompanying changes in the effective carrier confinement volume and associated spectral absorption properties. Deposition conditions favoring CdTe connectivity had a red shift in absorption energy onset in comparison to phase assemblies with a more isolated CdTe phase.
520 $a While manipulating the absorption properties is of significant interest, the electronic behavior of the nanocomposite must also be considered. The continuity of both the matrix and the CdTe influenced the mobility pathways for carriers generated within their respective phases. Photoconductivity of the nanocomposite, dependent upon the combined influences of nanostructure-mediated optical absorption and carrier transport path, increased with an increased semiconductor nanoparticle number density along the applied field direction.
520 $a Mobility of the carriers in the nanocomposite was further mediated by the interface between the ZnO and CdTe nanophases which acts as a source of carrier scattering centers. These effects were influenced by low temperature annealing of the nanocomposite which served to increase the crystallinity of the phases without modification of the as-deposited phase assembly and associated absorption properties.
520 $a Integration of the nanocomposite as an n-type heterojunction element into a PV device demonstrated the ability to tune device response based on the spectral absorption of the nanocomposite sensitizer film as dictated by the phase assembly. Overall the various phase assemblies studied provided increased opportunity for optimization of the absorption and carrier transport properties of the nanocomposite thin films.
590 $a School code: 0009.
650 4 $a Engineering, General. $3 1020744
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Nanotechnology. $3 526235
690 $a 0537
690 $a 0794
690 $a 0652
710 2 $a The University of Arizona. $b Materials Science & Engineering. $3 1064721
773 0 $t Dissertation Abstracts International $g 74-07B(E).
790 $a 0009
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3557508