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

Tailoring the optical and electronic...

Dewald, James L.

FindBook

Google Book

Amazon

博客來

Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics./
作者:	Dewald, James L.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2007,
面頁冊數:	250 p.
附註:	Source: Dissertations Abstracts International, Volume: 69-08, Section: B.
Contained By:	Dissertations Abstracts International69-08B.
標題:	Optics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3284877
ISBN:	9780549273271

Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics.
Dewald, James L.

Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics. - Ann Arbor : ProQuest Dissertations & Theses, 2007 - 250 p.

Source: Dissertations Abstracts International, Volume: 69-08, Section: B.

Thesis (Ph.D.)--New Mexico State University, 2007.

This item must not be sold to any third party vendors.

The purpose of this research was to gain a fundamental understanding of the optical, morphological, and optoelectronic properties of conjugated organic nanomaterials and polymer composites with the aim to tailor their properties for new electronic and optoelectronic devices. The organic nanomaterials studied were the conjugated polymers poly(3-hexyl-thiophene-2,5-diyl) (P3HT), poly(m-phenylenevinylene-co-2,5-dioctoxy- p-phenlenevinylene) (PmPV), and the functionalized Fullerene [1-(3-methoxycarbonyl) propyl-1-phenyl-(6,6) C61], when blended with P3HT. The other nanocomposite studied was a blend of PmPV and gold nanoparticles, in order to study inorganic nanofillers as alternatives to fullerenes. Bulk optical characterization of materials was performed via UV-Visible absorption, photoluminescence, and Raman spectroscopy. Morphological and nanoscale optical characterization were performed using Atomic Force Microscopy (AFM) and Near-Field Optical Microscopy (NSOM). Flat-panel Schottky diode sandwich cells were fabricated using both pure PmPV and PmPV-gold nanoparticle composites, and characterized via current density versus voltage (J-V) measurements. Incorporation of gold nanoparticles into PmPV significantly enhanced the performance of the diodes, reducing the diode ideality factor from 14.55 to 1.32. Flat-panel organic photovoltaic devices were fabricated using a P 3HT:PCBM nanocomposite active layer, and characterized via J-V measurements (both dark and illuminated). Various annealing conditions applied to the nanocomposite active layer were studied, resulting in an optimum annealing condition; bringing the power conversion efficiency of these devices to 5.2%. This power conversion efficiency was a record for organic photovoltaics. NSOM analysis revealed that the enhanced efficiency of these devices was due to better dispersion of the fullerenes within the P3HT matrix upon annealing. In addition, a brand new architecture was created for organic photovoltaics, based upon a waveguiding optical fiber substrate, as opposed to the usual flat-panel architecture. These "cascade" solar cells were characterized via J-V measurements (both dark and illuminated). The optical absorption properties of these cells were also studied. The illuminated J-V measurements and absorption studies revealed a significant relationship between the absorption in the active layer and the angle of incident light on the device. Furthermore, while performing NSOM studies on the P3HT:PCBM nanocomposite, a novel form of NSOM "lithography" was discovered, raising the possibility of a new form of all optical data storage for the future.

ISBN: 9780549273271Subjects--Topical Terms:

517925
Optics.
Subjects--Index Terms:

AFM

Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics.
LDR:04103nmm a2200445 4500 001 2270856
005 20201007134028.5
008 220629s2007 ||||||||||||||||| ||eng d
020 $a 9780549273271
035 $a (MiAaPQ)AAI3284877
035 $a AAI3284877
040 $a MiAaPQ $c MiAaPQ
100 1 $a Dewald, James L. $3 3548231
245 1 0 $a Tailoring the optical and electronic properties of nanomaterials for organic optoelectronics.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2007
300 $a 250 p.
500 $a Source: Dissertations Abstracts International, Volume: 69-08, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Curran, Seamus A.
502 $a Thesis (Ph.D.)--New Mexico State University, 2007.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a The purpose of this research was to gain a fundamental understanding of the optical, morphological, and optoelectronic properties of conjugated organic nanomaterials and polymer composites with the aim to tailor their properties for new electronic and optoelectronic devices. The organic nanomaterials studied were the conjugated polymers poly(3-hexyl-thiophene-2,5-diyl) (P3HT), poly(m-phenylenevinylene-co-2,5-dioctoxy- p-phenlenevinylene) (PmPV), and the functionalized Fullerene [1-(3-methoxycarbonyl) propyl-1-phenyl-(6,6) C61], when blended with P3HT. The other nanocomposite studied was a blend of PmPV and gold nanoparticles, in order to study inorganic nanofillers as alternatives to fullerenes. Bulk optical characterization of materials was performed via UV-Visible absorption, photoluminescence, and Raman spectroscopy. Morphological and nanoscale optical characterization were performed using Atomic Force Microscopy (AFM) and Near-Field Optical Microscopy (NSOM). Flat-panel Schottky diode sandwich cells were fabricated using both pure PmPV and PmPV-gold nanoparticle composites, and characterized via current density versus voltage (J-V) measurements. Incorporation of gold nanoparticles into PmPV significantly enhanced the performance of the diodes, reducing the diode ideality factor from 14.55 to 1.32. Flat-panel organic photovoltaic devices were fabricated using a P 3HT:PCBM nanocomposite active layer, and characterized via J-V measurements (both dark and illuminated). Various annealing conditions applied to the nanocomposite active layer were studied, resulting in an optimum annealing condition; bringing the power conversion efficiency of these devices to 5.2%. This power conversion efficiency was a record for organic photovoltaics. NSOM analysis revealed that the enhanced efficiency of these devices was due to better dispersion of the fullerenes within the P3HT matrix upon annealing. In addition, a brand new architecture was created for organic photovoltaics, based upon a waveguiding optical fiber substrate, as opposed to the usual flat-panel architecture. These "cascade" solar cells were characterized via J-V measurements (both dark and illuminated). The optical absorption properties of these cells were also studied. The illuminated J-V measurements and absorption studies revealed a significant relationship between the absorption in the active layer and the angle of incident light on the device. Furthermore, while performing NSOM studies on the P3HT:PCBM nanocomposite, a novel form of NSOM "lithography" was discovered, raising the possibility of a new form of all optical data storage for the future.
590 $a School code: 0143.
650 4 $a Optics. $3 517925
650 4 $a Materials science. $3 543314
653 $a AFM
653 $a Absorption
653 $a Atomic force microscopy
653 $a Lithography
653 $a NSOM
653 $a Nanomaterials
653 $a Near-field optical microscopy
653 $a Organic optoelectronics
653 $a Photoluminescence
653 $a Photovoltaic
690 $a 0752
690 $a 0794
710 2 $a New Mexico State University. $3 783784
773 0 $t Dissertations Abstracts International $g 69-08B.
790 $a 0143
791 $a Ph.D.
792 $a 2007
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3284877