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Electrochemical Polymerization as a ...

Fjeldberg, Oeystein .

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Electrochemical Polymerization as a Tool for Scalable Deposition of Polythiophene as the Hole-Transporting Layer in Perovskite Solar Cells.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Electrochemical Polymerization as a Tool for Scalable Deposition of Polythiophene as the Hole-Transporting Layer in Perovskite Solar Cells./
Author:	Fjeldberg, Oeystein .
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	85 p.
Notes:	Source: Masters Abstracts International, Volume: 81-09.
Contained By:	Masters Abstracts International81-09.
Subject:	Energy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27547522
ISBN:	9781392813652

Electrochemical Polymerization as a Tool for Scalable Deposition of Polythiophene as the Hole-Transporting Layer in Perovskite Solar Cells.
Fjeldberg, Oeystein .

Electrochemical Polymerization as a Tool for Scalable Deposition of Polythiophene as the Hole-Transporting Layer in Perovskite Solar Cells. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 85 p.

Source: Masters Abstracts International, Volume: 81-09.

Thesis (M.S.)--University of California, San Diego, 2019.

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

Perovskite solar cells (PSCs) have only been around for ten years, but have already demonstrated photovoltaic conversion efficiencies (PCEs) approaching those of state-of-the-art silicon photovoltaics. One of the critical challenges remaining is to develop solar cell fabrication methods that are compatible with industrial-scale production. Although the cost of the perovskite layer itself is cheap, the device also requires a hole-transporting layer (HTL), which is usually made from prohibitively expensive materials. Additionally, the HTL is commonly deposited through spin-coating, which leads to non-uniform film thickness for large-area substrates. By using electrochemical polymerization to deposit polythiophene as part of the solar cell fabrication procedure, these two problems can be overcome, as it allows for uniform thickness of the deposited layer and utilizes cheap precursors. In this study, polythiophene films were grown and characterized by Scanning Electron Microscopy (SEM) imaging to gain an understanding of how growth conditions affect film morphology and uniformity. Characterizations by Cyclic Voltammetry (CV), Fourier Transform Infrared Spectroscopy (FTIR), Energy-Dispersive X-Ray Spectroscopy (EDX), and X-Ray Diffraction (XRD) were also performed. Based on these results, I developed a method for large-area deposition that is compatible with industrial-scale solar cell production. This method was used to fabricate inverted structure PSCs with polythiophene as the HTL. In situ electrochemical polymerization of polythiophene onto perovskite for use in normal structure PSCs was also explored.

ISBN: 9781392813652Subjects--Topical Terms:

876794
Energy.
Subjects--Index Terms:

Electrodeposition

Electrochemical Polymerization as a Tool for Scalable Deposition of Polythiophene as the Hole-Transporting Layer in Perovskite Solar Cells.
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500 $a Source: Masters Abstracts International, Volume: 81-09.
500 $a Includes supplementary digital materials.
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502 $a Thesis (M.S.)--University of California, San Diego, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a Perovskite solar cells (PSCs) have only been around for ten years, but have already demonstrated photovoltaic conversion efficiencies (PCEs) approaching those of state-of-the-art silicon photovoltaics. One of the critical challenges remaining is to develop solar cell fabrication methods that are compatible with industrial-scale production. Although the cost of the perovskite layer itself is cheap, the device also requires a hole-transporting layer (HTL), which is usually made from prohibitively expensive materials. Additionally, the HTL is commonly deposited through spin-coating, which leads to non-uniform film thickness for large-area substrates. By using electrochemical polymerization to deposit polythiophene as part of the solar cell fabrication procedure, these two problems can be overcome, as it allows for uniform thickness of the deposited layer and utilizes cheap precursors. In this study, polythiophene films were grown and characterized by Scanning Electron Microscopy (SEM) imaging to gain an understanding of how growth conditions affect film morphology and uniformity. Characterizations by Cyclic Voltammetry (CV), Fourier Transform Infrared Spectroscopy (FTIR), Energy-Dispersive X-Ray Spectroscopy (EDX), and X-Ray Diffraction (XRD) were also performed. Based on these results, I developed a method for large-area deposition that is compatible with industrial-scale solar cell production. This method was used to fabricate inverted structure PSCs with polythiophene as the HTL. In situ electrochemical polymerization of polythiophene onto perovskite for use in normal structure PSCs was also explored.
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