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Enhancing Perovskite Solar Cells Wit...

Xie, Zehao,

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Enhancing Perovskite Solar Cells With Covalent Organic Frameworks /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Enhancing Perovskite Solar Cells With Covalent Organic Frameworks // Zehao Xie.
Author:	Xie, Zehao,
Description:	1 electronic resource (67 pages)
Notes:	Source: Masters Abstracts International, Volume: 86-12.
Contained By:	Masters Abstracts International86-12.
Subject:	Energy. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32115666
ISBN:	9798280771789

Enhancing Perovskite Solar Cells With Covalent Organic Frameworks /
Xie, Zehao,

Enhancing Perovskite Solar Cells With Covalent Organic Frameworks /Zehao Xie. - 1 electronic resource (67 pages)

Source: Masters Abstracts International, Volume: 86-12.

Perovskite solar cells (PSCs) have emerged as a leading photovoltaic technology owing to their exceptional efficiency and ease of fabrication. However, achieving both high efficiency and long-term operational stability remains challenging, largely due to inherent defects and ion migration issues within perovskite films. In this study, we introduced TpPa-SO₃H, a sulfonic acid-functionalized ionic covalent organic framework (i-COF), as an additive to improve PSC performance and stability. Structural and morphological analyses, including X-ray diffraction (XRD) and scanning electron microscopy (SEM), demonstrated enhanced crystallinity, larger grain sizes, and improved phase purity after TpPa-SO₃H incorporation. Photoluminescence (PL) and external quantum efficiency (EQE) measurements indicated significant reductions in non-radiative recombination and improved charge extraction. Stability testing under continuous illumination at elevated temperature (75 °C) confirmed the beneficial effects of the additive, with devices retaining approximately 90% of their initial efficiency after prolonged operation. Further analysis using ultraviolet photoelectron spectroscopy (UPS) revealed optimized energy-level alignment at interfaces, facilitating better charge transport. This work highlights the effectiveness of functionalized COFs as multifunctional additives for simultaneously enhancing the efficiency and operational stability of perovskite solar cells and points toward future directions involving AI-assisted discovery of tailored COF materials for photovoltaic applications.

English

ISBN: 9798280771789Subjects--Topical Terms:

876794
Energy.
Subjects--Index Terms:

Additive engineering

Enhancing Perovskite Solar Cells With Covalent Organic Frameworks /
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245 1 0 $a Enhancing Perovskite Solar Cells With Covalent Organic Frameworks / $c Zehao Xie.
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500 $a Advisors: Yang, Yang Committee members: Balandin, Alexander; Raman, Aaswath.
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520 $a Perovskite solar cells (PSCs) have emerged as a leading photovoltaic technology owing to their exceptional efficiency and ease of fabrication. However, achieving both high efficiency and long-term operational stability remains challenging, largely due to inherent defects and ion migration issues within perovskite films. In this study, we introduced TpPa-SO₃H, a sulfonic acid-functionalized ionic covalent organic framework (i-COF), as an additive to improve PSC performance and stability. Structural and morphological analyses, including X-ray diffraction (XRD) and scanning electron microscopy (SEM), demonstrated enhanced crystallinity, larger grain sizes, and improved phase purity after TpPa-SO₃H incorporation. Photoluminescence (PL) and external quantum efficiency (EQE) measurements indicated significant reductions in non-radiative recombination and improved charge extraction. Stability testing under continuous illumination at elevated temperature (75 °C) confirmed the beneficial effects of the additive, with devices retaining approximately 90% of their initial efficiency after prolonged operation. Further analysis using ultraviolet photoelectron spectroscopy (UPS) revealed optimized energy-level alignment at interfaces, facilitating better charge transport. This work highlights the effectiveness of functionalized COFs as multifunctional additives for simultaneously enhancing the efficiency and operational stability of perovskite solar cells and points toward future directions involving AI-assisted discovery of tailored COF materials for photovoltaic applications.
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650 4 $a Energy. $3 876794
650 4 $a Applied physics. $3 3343996
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650 4 $a Quantum physics. $3 726746
650 4 $a Materials science. $3 543314
653 $a Additive engineering
653 $a Covalent organic frameworks
653 $a Perovskite solar cells
653 $a External quantum efficiency
653 $a Scanning electron microscopy
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690 $a 0599
690 $a 0794
690 $a 0537
690 $a 0215
710 2 $a University of California, Los Angeles. $b Materials Science and Engineering 0328. $e degree granting institution. $3 3818555
720 1 $a Yang, Yang $e degree supervisor.
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