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Investigating Degradation Pathways i...

Shah, Satvik.

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Investigating Degradation Pathways in Organic Solar Cell Materials.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Investigating Degradation Pathways in Organic Solar Cell Materials./
作者:	Shah, Satvik.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	97 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Contained By:	Dissertation Abstracts International79-11B(E).
標題:	Electrical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10789257
ISBN:	9780438077041

Investigating Degradation Pathways in Organic Solar Cell Materials.
Shah, Satvik.

Investigating Degradation Pathways in Organic Solar Cell Materials. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 97 p.

Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.

Thesis (Ph.D.)--Iowa State University, 2018.

Thin film organic solar is a recent technology with tremendous potential -- low cost materials, quicker manufacturing processes and synthetic tuning of organic materials to optimize material properties. Cell efficiencies > 12% have already been achieved. But the bottleneck problem this technology faces is instability. Performance of these cells degrades much faster than traditional solar cells. The degradation occurs on exposure to solar radiation, both through extrinsic ingress of moisture and oxygen as well as intrinsic degradation mechanisms.

ISBN: 9780438077041Subjects--Topical Terms:

649834
Electrical engineering.

Investigating Degradation Pathways in Organic Solar Cell Materials.
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300 $a 97 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
500 $a Advisers: Rana Biswas; Vikram Dalal.
502 $a Thesis (Ph.D.)--Iowa State University, 2018.
520 $a Thin film organic solar is a recent technology with tremendous potential -- low cost materials, quicker manufacturing processes and synthetic tuning of organic materials to optimize material properties. Cell efficiencies > 12% have already been achieved. But the bottleneck problem this technology faces is instability. Performance of these cells degrades much faster than traditional solar cells. The degradation occurs on exposure to solar radiation, both through extrinsic ingress of moisture and oxygen as well as intrinsic degradation mechanisms.
520 $a One of the most common type of thin film organic cell with efficiency &sim;10% is PTB7:PCBM organic solar cell. Hence I have tried to attack the instability problem for this cell. The first step is to understand why and how the degradation occurs. Hence I have studied both extrinsic and intrinsic degradation pathways for this cell .Through theoretical simulations using quantum mechanical methods, I have tried to calculate energy barriers for possible degradation pathways, narrowing their search. Next, I try to determine the atomistic mechanisms of degradation by light-soaking organic films in controlled environment and performing infrared spectroscopy before and after light soaking, to identify bonding changes. Infrared spectroscopy paired with ab-initio theoretical modeling can provide a powerful tool for quantifying photo-structural atomic bonding changes.
520 $a Understanding these pathways, it will be easier to synthetically tune organic materials much less prone to degradation, solving the bottleneck problem of instability for thin film organic solar cells and opening avenues to designing more stable organic materials for organic electronics.
590 $a School code: 0097.
650 4 $a Electrical engineering. $3 649834
650 4 $a Materials science. $3 543314
650 4 $a Organic chemistry. $3 523952
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710 2 $a Iowa State University. $b Electrical and Computer Engineering. $3 1018524
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