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Filtering by: Alternative title ssim 4-H Club Series S-6 Remove constraint Alternative title ssim: 4-H Club Series S-6 Advisor Wager, John F. Remove constraint Advisor: Wager, John F.

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  • Development of Cu-based Thin Films for Optoelectronic Applications

    Creator:
    Angelos, Gregory S.
    Abstract:
    CIGS and CdTe based commercial thin-film solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Gregory S. Angelos for the

  • Electro-optical characterization of SrS:Ce, SrS:Cu, and SrS:Cu,Ag alternating-current thin-film electroluminescent devices

    Creator:
    Grudzinsky, Arkady S.
    Abstract:
    The purpose of this thesis is to contribute to the understanding of SrS-based alternating-current thin-film electroluminescent (ACTFEL) device operation. Three main accomplishments serving this purpose are presented in this thesis. First, two new methods are developed for estimation of insulator capacitance in ACTFEL devices possessing a large amount of dynamic...
    Resource Type:
    Masters Thesis
    Full Text:
    by the centers of lu­ 6 c D F J/B \ ) 2 I ( (A E \G H I Figure 2.2. AC driving waveform

  • Internal charge-phosphor field analysis, electrical characterization, and aging studies of AC thin-film electroluminescent devices

    Creator:
    Abu-Dayah, Ahmad I.
    Resource Type:
    Masters Thesis
    Full Text:
    Vmax's. 43 4-6. Several C-V curves for positive Vmax's. 43 4-7. Vto, Qpol, and 0leak as a function of

  • Fabrication and characterization of thin-film transistor materials and devices

    Creator:
    Hong, David
    Abstract:
    A class of inorganic thin-film transistor (TFT) semiconductor materials has emerged involving oxides composed of post-transitional cations with (n-1)d¹⁰ns⁰ (n≥4) electronic configurations. This thesis is devoted to the pursuit of topics involving the development of these materials for TFT applications: Deposition of zinc oxide and zinc tin oxide semiconductor layers...
    Resource Type:
    Dissertation
    Full Text:
    thin-film transistors (TFTs). [4, 5, 6, 7, 8] Research within this area of oxide electronics has

  • Inorganic thin-film solar cells

    Creator:
    Spies, Jack Alexander
    Abstract:
    The primary objective of this thesis is to explore new absorber and p-type window layer materials for thin-film solar cell applications. A new thin-film electron beam deposition system has been installed, is now operational, and has been used to deposit several types of solar cell absorber layers. Material investigations include...
    Resource Type:
    Masters Thesis
    Full Text:
    ) subcontract number XAT-4-33624-11. ”The length of this document defends it well against the risk of its

  • Electrical characterization of n-type aluminum gallium arsenide

    Creator:
    Kim, Seung-bae
    Resource Type:
    Dissertation
    Full Text:
    0 r1 04 O 0 -H 0 O 0 4-) CD CV 4-1 (1) E A Ar/WX,WWW://7.4446.7.44/7.607,,,,,, DX E hv

  • Investigation of ultra-thin In-Ga-Zn-O thin-film transistors

    Creator:
    Chiang, Tsung-Han
    Abstract:
    The objective of the work reported herein is to explore the impact of decreasing channel thickness on radio-frequency (RF) sputtered amorphous indium-gallium-zinc oxide (a-IGZO) thin-film transistors (TFTs) electrical performance through the evaluation of drain current versus gate voltage (I[subscript D] − V[subscript G]) transfer curves. For a fixed set of...
    Resource Type:
    Masters Thesis
    Full Text:
    thickness (h). (a) Subthreshold swing (S) and state density due to bulk conduction bandtail states (DTA) and

  • 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:
    and copper indium gallium diselenide thin-film solar cells (TFSCs) utilize thick absorbers (2 - 4 µm

  • Modeling and development of p-type thin-film transistors

    Creator:
    Spiegelberg, Matthew Craig
    Abstract:
    The primary focus of this thesis involves modeling and development of p-type thin-film transistors (p-TFTs), moving towards the realization of a filly transparent thin-film transistor (TTFT). The modeling portion of this thesis emphasizes the development of physics-based TFT models, specifically focusing on the elucidation of non-ideal current-voltage characteristic behavior. A...
    Resource Type:
    Masters Thesis
    Full Text:
    , µBULK= 0.5 cm2N-s, µINTERFACE = 0.505 cm2N-s, h= 60 nm, Vr= -17 V,RBULK= 200 kn, ZIL = 5 ....... .48

  • ACTFEL device simulation with impact ionization using a two-sheet charge model

    Creator:
    Bouchard, Anthony F.
    Abstract:
    The main achievement of this thesis is the development of a two-sheet charge simulation model with space charge creation by trap-to-band impact ionization to describe the electrical characteristics of alternating-current thin-film electroluminescent (ACTFEL) devices. The two-sheet charge model localizes all of the space charge in the phosphor region of an...
    Resource Type:
    Masters Thesis
    Full Text:
    trap density in the phosphor region, the value of the series resis­ tance used in the experimental