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Understanding of correlation between size and coloration of Copper Gallium Oxide and its application in perovskite solar cell

Yu, Yongze, Yu
http://orcid.org/0000-0001-8861-5322
http://rave.ohiolink.edu/etdc/view?acc_num=osu1471362649

Abstract Details

2016, Master of Science, Ohio State University, Chemistry.
Understanding and application of nanostructure metal oxide semiconductor is fundamentally significant in science and technology field. With further investigation of the chemical and physical characteristics of metal oxide semiconductor, we are able to more precisely control and strengthen the relation between the synthesis and application. This focus of this dissertation is on the understanding of correlation between the size and coloration of a p-type wide band gap Cu-based delafossite semiconductor and its application in perovskite solar cell. The copper gallium oxide (CuGaO2 or CGO) was synthesized by hydrothermal method and further characterized via X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron spectroscopy and etc. It turns out the coloration of CuGaO2 comes from the Cu(II) spices by oxygen interstitial doping. As a result, with higher doping level, the flat band potential is more positive in yellow CuGaO2 than grey CuGaO2. In addition, the size can be independently controlled from the coloration by different synthesis conditions. With deeper exploration of the intrinsic difference in various CuGaO2, the fact revealed on this delafossite material could be the stepping stone for the further application in catalysis or photovoltaics. Organic Inorganic hybrid perovskite as a narrow band-gap semiconductor has become a hot topic in photovoltaic area. It rapidly affects and strikes the development of the emerging solar cells. With knowing the advantages and disadvantages of perovskite in its solar cell application, we introduced the p-type CuGaO2 as hole transport material in the perovskite solar cell structure. Due to the decreased hole transfer resistance, the short circuit current density was improved as well as the power conversion efficiency compared to hole material free cells.
Yiying Wu (Advisor)
Woodward Patrick (Committee Member)
76 p.
Chemistry
delafossite, copper gallium oxide, coloration, perovskite solar cell

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Citations

  • Yu, Yu, Y. (2016). Understanding of correlation between size and coloration of Copper Gallium Oxide and its application in perovskite solar cell [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471362649

    APA Style (7th edition)

  • Yu, Yu, Yongze. Understanding of correlation between size and coloration of Copper Gallium Oxide and its application in perovskite solar cell. 2016. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1471362649.

    MLA Style (8th edition)

  • Yu, Yu, Yongze. "Understanding of correlation between size and coloration of Copper Gallium Oxide and its application in perovskite solar cell." Master's thesis, Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471362649

    Chicago Manual of Style (17th edition)

osu1471362649
507
© 2016, some rights reserved.Creative Commons License Understanding of correlation between size and coloration of Copper Gallium Oxide and its application in perovskite solar cell by Yongze Yu Yu is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by The Ohio State University and OhioLINK.