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Molecular Structure Induced Aggregation Effects on the Photophysical Properties of Perylene Diimide Based Multilayer Thin Films.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Molecular Structure Induced Aggregation Effects on the Photophysical Properties of Perylene Diimide Based Multilayer Thin Films./
Author:	Hu, Guangyu.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	35 p.
Notes:	Source: Masters Abstracts International, Volume: 81-02.
Contained By:	Masters Abstracts International81-02.
Subject:	Materials science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13424832
ISBN:	9781085563406

Molecular Structure Induced Aggregation Effects on the Photophysical Properties of Perylene Diimide Based Multilayer Thin Films.
Hu, Guangyu.

Molecular Structure Induced Aggregation Effects on the Photophysical Properties of Perylene Diimide Based Multilayer Thin Films. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 35 p.

Source: Masters Abstracts International, Volume: 81-02.

Thesis (M.S.)--Rensselaer Polytechnic Institute, 2019.

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

Two perylene diimides (PDI) were synthesized to enable the preparation of multilayer films through a layer-by-layer (LbL) assembly technique using copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC). Multilayer films were fabricated with Ph-PDI or Pro-PDI (aniline groups or propargyl groups at the diimide positions) as perylene layers and either 1,3,5-tris(azidomethyl)benzene (L1), 1,4-bis(azidomethyl)benzene (L2) or 4,4'-di- azido-2,2'-stilbenedisulfonic acid disodium salt (L3) as linker layers. As shown from UV-Visible absorption and fluorescence spectroscopic studies, among the three linkers, PDIs with L1 displayed linear growth properties and the highest fluorescence intensity. Multilayer films of Pro-PDI with L1 had higher relative fluorescent intensity than that of Ph-PDI. Specular X-ray Reflectivity (XRR) and DFT calculations exhibited a higher tilting angle structure with less density was formed for Pro-PDI multilayer films, indicating more H-type aggregates present for Ph-PDI multilayer films. The achievable tunability of PDIs aggregation and the corresponding fluorescence properties may be illuminating for fabrication of new light harvesting arrays.

ISBN: 9781085563406Subjects--Topical Terms:

557839
Materials science.
Subjects--Index Terms:

Perylene diimides

Molecular Structure Induced Aggregation Effects on the Photophysical Properties of Perylene Diimide Based Multilayer Thin Films.
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500 $a Source: Masters Abstracts International, Volume: 81-02.
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520 $a Two perylene diimides (PDI) were synthesized to enable the preparation of multilayer films through a layer-by-layer (LbL) assembly technique using copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC). Multilayer films were fabricated with Ph-PDI or Pro-PDI (aniline groups or propargyl groups at the diimide positions) as perylene layers and either 1,3,5-tris(azidomethyl)benzene (L1), 1,4-bis(azidomethyl)benzene (L2) or 4,4'-di- azido-2,2'-stilbenedisulfonic acid disodium salt (L3) as linker layers. As shown from UV-Visible absorption and fluorescence spectroscopic studies, among the three linkers, PDIs with L1 displayed linear growth properties and the highest fluorescence intensity. Multilayer films of Pro-PDI with L1 had higher relative fluorescent intensity than that of Ph-PDI. Specular X-ray Reflectivity (XRR) and DFT calculations exhibited a higher tilting angle structure with less density was formed for Pro-PDI multilayer films, indicating more H-type aggregates present for Ph-PDI multilayer films. The achievable tunability of PDIs aggregation and the corresponding fluorescence properties may be illuminating for fabrication of new light harvesting arrays.
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