Tags: nanocrystals

Theses and Dissertations (1-9 of 9)

  1. Rational Synthesis of Multimetallic Nanocrystals for Plasmonics and Catalysis

    14 Jan 2020 | Contributor(s):: Ahn, Jae Wan

    Advisors: Dong Qin, Zhiqun Lin, Meilin Liu, Preet Singh, Joseph SadighiMultimetallic noble-metal nanocrystals have attracted considerable attention owing to their broad structure-property relationship for applications in plasmonics and catalysis. However, it remains a major challenge to...

  2. Strategies for Metallic Nanoparticles, Metal Chalcogenide Nanocrystals and Perovskite Quantum Dots and Their Optical and Optoelectronic Properties

    14 Jan 2020 | Contributor(s):: Yoon, Young Jun

    Advisors: Zhiqun Lin, Vladimir Tsukruk, Dong Qin, Blair Brettmann, Yulin DengNanocrystals with precisely tuned dimensions, spatial compositions, and surface chemistry offer unique properties that may not be realized otherwise. This dissertation takes on two distinct preparative approaches to...

  3. Engineering Localized Surface Plasmons in Doped Semiconductor Nanomaterials

    20 Aug 2018 | Contributor(s):: Boyuk, Dmitriy

    Advisors: Michael Filler, Chris Jones, Paul Kohl, Wenshan Cai, Younan XiaDoped semiconductors materials have emerged as the preeminent materials platform for development of optoelectronic technologies harnessing the LSPR phenomena in the infrared spectral regime. The capacity to engineer a...

  4. Rational Design of Protocols for the Shape-Controlled Synthesis of Palladium Anocrystals

    31 May 2018 | Contributor(s):: Figueroa-Cosme, Legna Marie

    Advisors: Angus P Wilkinson, Younan Xia, Christopher W Jones, Mostafa A. El-Sayed, Zhiqun LinA number of strategies for controlling the size and shape of noble-metal nanocrystals are introduced, with a particular interest in scaling-up approaches for the future commercial viability of...

  5. Palladium and Platinum Nanocrystals: Facile Synthesis and Thermal Stability

    31 May 2018 | Contributor(s):: Vara, Madeline

    Advisors: Angus P. Wilkinson, Z. John Zhang, Ronghu Wu, Zhiqun Lin, Younan XiaNew methods for the facile synthesis of palladium nanocrystals were developed, with a focus on reaction conditions amenable to scale-up. A photochemical synthesis of 12-nm Pd cube-like nanocrystals decorated with atomic...

  6. Bimetallic Nanocrystals for Applications in Plasmonics and Catalysis

    22 Jan 2018 | Contributor(s):: Sun, Xiaojun

    Advisors: Dong Qin, Meilin Liu, Vladimir Tsukruk, Zhiqun Lin, John ZhangBimetallic nanocrystals have received growing interest owing to their diversified properties and promising applications. Seeded growth serves as a powerful route to bimetallic nanocrystals but its capability is limited by...

  7. Toward a Quantitative Understanding of the Shape-Controlled Synthesis of Colloidal Noble-Metal Nanocrystals

    11 Jan 2017 | Contributor(s):: Peng, Hsin-Chieh

    Advisors: Younan Xia, Joseph P. Sadighi, Christopher W. Jones, Angus P. Wilkinson, Z. John ZhangThis dissertation is focused on the development of a quantitative analysis of the thermodynamic and kinetic factors responsible for the mechanisms and pathways during the nucleation and growth of...

  8. Novel Platinum-Based Nanocrystals and Their Use as Electrocatalysts for the Oxygen Reduction Reaction

    22 Aug 2016 | Contributor(s):: Park, Jinho

    Advisors: Younan Xia, Angus P. Wilkinson, Z. John Zhang, Ronghu Wu, Seung Woo LeeOwing to the low operating temperature and high power density, polymer electrolyte membrane fuel cells (PEMFCs) are promising candidates to replace the conventional combustion engines in the automotive industry. The...

  9. Seeded Growth of Noble Metal Nanocrystals

    13 Jan 2014 | Contributor(s):: Zheng, Yiqun

    Advisors: Younan Xia, Angus Wilkinson, John Zhang, Joseph Sadighi, Christopher W. JonesThis research emphasizes on the use of seeded growth in synthesis of noble metal nanocrystals with precise control over the size, shape, and composition. In the first part of this work, I have produced Au...