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Synthesis and Photophysical Characterization of Novel Organic Triplet Donor-Acceptor Dyads for Light-Harvesting/Modulation Application.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Synthesis and Photophysical Characterization of Novel Organic Triplet Donor-Acceptor Dyads for Light-Harvesting/Modulation Application./
作者:	Yun, Young Ju.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
面頁冊數:	341 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
標題:	Organic chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29166233
ISBN:	9798438784548

Synthesis and Photophysical Characterization of Novel Organic Triplet Donor-Acceptor Dyads for Light-Harvesting/Modulation Application.
Yun, Young Ju.

Synthesis and Photophysical Characterization of Novel Organic Triplet Donor-Acceptor Dyads for Light-Harvesting/Modulation Application. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 341 p.

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--Illinois Institute of Technology, 2022.

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

Donor-acceptor chromophoric systems (D-A) are important scaffolds for several light-harvesting/initiated processes and devices, including light-emitting diodes, photo-catalytic/redox systems, and photovoltaic cells. It has been hypothesized that for efficient photophysical processes (viz. energy/charge-transfer or excited-state interactions); it is ideal to tether the donor and acceptor chromophores into molecular dyads. To this end, I devised and synthesized several dyads by tethering an organic triplet energy donor and various polyaromatic chromophores (e.g., perylene derivatives and anthracene derivatives) onto a conjugated-/non-conjugated-linker (phenylene- and triptycene- linker, respectively). During the 4-5 years of my Ph.D., I synthesized a total of five (5) dyads: o-, p-3, and dyads 3-5. These systems were fully characterized using different spectroscopy tools/techniques. The spectroscopy investigations of the dyads have allowed me to decipher two important energy transfer pathways: through-bond and through-space with the phenylene linker and only through-space energy with the triptycene linker. Furthermore, the investigations led to the discovery that geometrical features such as face-to-face (co-facial) or slip-stacked interactions between the donor and acceptors chromophores might dictate the dynamic/kinetic of light-induced energy transfer in the dyads. Findings from my graduate research project paved the way for developing molecular engineering studies for light-harvesting/modulation applications. Subsequently, I was able to employ the dyads of my interest to achieve intramolecular and intermolecular triplet energy transfer (TEnT) triplet-triplet annihilation-based photon upconversion (TTA-PUC).

ISBN: 9798438784548Subjects--Topical Terms:

523952
Organic chemistry.
Subjects--Index Terms:

Bichromophores

Synthesis and Photophysical Characterization of Novel Organic Triplet Donor-Acceptor Dyads for Light-Harvesting/Modulation Application.
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506 $a This item must not be sold to any third party vendors.
520 $a Donor-acceptor chromophoric systems (D-A) are important scaffolds for several light-harvesting/initiated processes and devices, including light-emitting diodes, photo-catalytic/redox systems, and photovoltaic cells. It has been hypothesized that for efficient photophysical processes (viz. energy/charge-transfer or excited-state interactions); it is ideal to tether the donor and acceptor chromophores into molecular dyads. To this end, I devised and synthesized several dyads by tethering an organic triplet energy donor and various polyaromatic chromophores (e.g., perylene derivatives and anthracene derivatives) onto a conjugated-/non-conjugated-linker (phenylene- and triptycene- linker, respectively). During the 4-5 years of my Ph.D., I synthesized a total of five (5) dyads: o-, p-3, and dyads 3-5. These systems were fully characterized using different spectroscopy tools/techniques. The spectroscopy investigations of the dyads have allowed me to decipher two important energy transfer pathways: through-bond and through-space with the phenylene linker and only through-space energy with the triptycene linker. Furthermore, the investigations led to the discovery that geometrical features such as face-to-face (co-facial) or slip-stacked interactions between the donor and acceptors chromophores might dictate the dynamic/kinetic of light-induced energy transfer in the dyads. Findings from my graduate research project paved the way for developing molecular engineering studies for light-harvesting/modulation applications. Subsequently, I was able to employ the dyads of my interest to achieve intramolecular and intermolecular triplet energy transfer (TEnT) triplet-triplet annihilation-based photon upconversion (TTA-PUC).
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653 $a Triplet-triplet annihilation based photon upconversion (TTA-PUC)
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