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Applications of large-area nanopatte...

Mills, Eric N.

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Applications of large-area nanopatterning to energy generation and storage devices.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Applications of large-area nanopatterning to energy generation and storage devices./
Author:	Mills, Eric N.
Description:	266 p.
Notes:	Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.
Contained By:	Dissertation Abstracts International77-11B(E).
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10120279
ISBN:	9781339814636

Applications of large-area nanopatterning to energy generation and storage devices.
Mills, Eric N.

Applications of large-area nanopatterning to energy generation and storage devices. - 266 p.

Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.

Thesis (Ph.D.)--Princeton University, 2016.

This dissertation encompasses the creation and testing of nanostructured, electrochemically-active energy generation and storage devices, and development of the associated fabrication techniques. The fabricated devices include nanopatterned, plasmonically-active, TiO2+Au thin films for Photocatalytic Water Splitting (PCW), TiO2-based Dye-Sensitized Solar Cells (DSSCs) incorporating nanopatterned, plasmonically-active metallic front electrodes, and Si nanopillar anodes for Li-ion batteries. Techniques were also developed for encapsulation and removal of wet-etched Si nanowires from their mother substrates.

ISBN: 9781339814636Subjects--Topical Terms:

649834
Electrical engineering.

Applications of large-area nanopatterning to energy generation and storage devices.
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100 1 $a Mills, Eric N. $3 3192778
245 1 0 $a Applications of large-area nanopatterning to energy generation and storage devices.
300 $a 266 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.
500 $a Adviser: Stephen Y. Chou.
502 $a Thesis (Ph.D.)--Princeton University, 2016.
520 $a This dissertation encompasses the creation and testing of nanostructured, electrochemically-active energy generation and storage devices, and development of the associated fabrication techniques. The fabricated devices include nanopatterned, plasmonically-active, TiO2+Au thin films for Photocatalytic Water Splitting (PCW), TiO2-based Dye-Sensitized Solar Cells (DSSCs) incorporating nanopatterned, plasmonically-active metallic front electrodes, and Si nanopillar anodes for Li-ion batteries. Techniques were also developed for encapsulation and removal of wet-etched Si nanowires from their mother substrates.
520 $a TiO2 was the first material to be widely used for PCW. Its use is hampered by its large bandgap (~3.2eV), and poor recombination lifetimes. Au nanoparticles (NPs) have been previously used to improve recombination lifetimes in TiO2 by separating photogenerated carriers near the NP edges, and to increase photocurrents by injecting plasmonically-excited hot electrons into the TiO2 conduction band. Using nanostructured TiO 2+Au electrodes, we aim to increase the PCW efficiency of TiO2 -based electrodes.
520 $a Dye-sensitized solar cells (DSSCs) employ visible-absorbing dyes anchored to a high-surface-area semiconducting scaffold. The front transparent conducting electrode (TCE) is typically ITO, a scarce and expensive material. We aim to increase the efficiency of thin-film DSSCs and eliminate the use of ITO by using a metallic subwavelength array (MESH) of nanoholes as the front TCE.
520 $a Silicon holds promise as a high-capacity anode material for Li-ion batteries, as it can store ~10x the Li of graphite, the current leading anode material (3569 vs. 372 mAh/g). However, Si undergoes dramatic (>300%) volume expansion upon "lithiation", pulverizing any structure with non-nanoscopic dimensions (>250nm). We created large-area arrays of "nanopillars" with sub-100nm diameters, using roll-to-roll-compatible flexible-mold NIL on commercially-available metal substrates.
520 $a Ordered nanopatterning by NIL combined with Metal-Assisted Chemical Etching (MACE) techniques is ideal for creating large-area arrays of high aspect-ratio nanowires, for use in solar cells or battery anodes. We introduce a polymer encapsulation technique that allows separation of the nanowire array from the mother substrate, while leaving the array structure, and original metal nanopattern, intact.
590 $a School code: 0181.
650 4 $a Electrical engineering. $3 649834
650 4 $a Nanotechnology. $3 526235
650 4 $a Nanoscience. $3 587832
690 $a 0544
690 $a 0652
690 $a 0565
710 2 $a Princeton University. $b Electrical Engineering. $3 2095953
773 0 $t Dissertation Abstracts International $g 77-11B(E).
790 $a 0181
791 $a Ph.D.
792 $a 2016
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10120279