Search Constraints

Start Over
Filtering by: Creator Kokenyesi, Robert Remove constraint Creator: Kokenyesi, Robert Subject Chalcogenides Remove constraint Subject: Chalcogenides

Search Results

  • New multi-functional chalcogenides for photovoltaic and thermoelectric materials

    Creator:
    Heo, Jaeseok
    Abstract:
    The subject of this PhD thesis is part of a research domain of great present interest in new semiconductor materials for photovoltaic and thermoelectric applications. This domain contains the elaboration and the study of both Cu-based chalcogenides bulk and thin-film samples, driven by materials design principles. One of the most...
    Resource Type:
    Dissertation
    Full Text:
    my collaborators, I will never forget the efforts made by Robert Kokenyesi in stimulating my

  • Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF7 : a new upconversion host, Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF₇ : a new upconversion host

    Creator:
    Jieratum, Vorranutch
    Abstract:
    The materials Fe₂(Si,Ge)(S,Se)₄, Cu₃PS[subscript 4-x]Se[subscript x] (0 ≤ x ≤ 4), and Cu₃PxAs[subscript 1-x]S₄ (0 ≤ x ≤ 1) have been synthesized and studied as new earth-abundant absorbers for single and multijunction photovoltaic cells as well as solar fuel generation. The synthesis, single-crystal growth, and optical and electrical properties of...
    Resource Type:
    Dissertation
    Full Text:
    assistance. I would like to thank postdocoral researcher, Robert Kokenyesi for his contributions on

  • Transition metal solar absorbers

    Creator:
    Altschul, Emmeline Beth
    Abstract:
    A new approach to the discovery of high absorbing semiconductors for solar cells was taken by working under a set of design principles and taking a systemic methodology. Three transition metal chalcogenides at varying states of development were evaluated within this framework. Iron pyrite (FeS₂) is well known to demonstrate...
    Resource Type:
    Masters Thesis
    Full Text:
    to pursue this research. I learned so much from Robert Kokenyesi and Vorra”nutch” Jieratum that

  • Development of high efficiency solar absorbers

    Creator:
    Ravichandran, Ram
    Abstract:
    Current cadmium telluride and copper indium gallium diselenide thin-film solar cells (TFSCs) utilize thick absorbers (2 - 4 μm). For efficient carrier extraction in these TFSCs, the absorber layer requires high carrier mobilities and a long minority carrier lifetime, which necessitates the use of a high purity, defect-free thin film....
    Resource Type:
    Dissertation
    Full Text:
    group, including Dr. Robert Kokenyesi, Dr. Jaeseok Heo, Dr. Brian Pelatt, and Greg Angelos, has been