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Showing 1 to 12 of 12 for “"CZTS"”.
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Developing high efficiency Cu2ZnSnS4 (CZTS) thin film solar cells by sputtering
Kesterite Cu2ZnSnS4 (CZTS) has demonstrated high potential and value as a new promising absorber material for thin film photovoltaics recently. It possesses the merits of earth abundant element constituent, facilitating its low-cost and large-scale production. Moreover, as a high bandgap material …
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Kesterite thin-film solar cell absorbers derived using inhomogeneous CZTS nanoparticles
… the structural and compositional integrities of CZTSSe are crucial to derive the solar cell grade kesterite thin-films. Analytical electron microscopy (AEM) allows me to demonstrate the structural and compositional inhomogeneity of the CZTS nanoparticles and CZTSSe thin-films at the nanoscale. …
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EARTH-ABUNDANT METAL CHALCOGENIDES: SYNTHESIS, INTERFACE MODIFICATION, AND APPLICATIONS IN ENERGY CONVERSION DEVICES
… earth-abundant MC materials Cu2ZnSnS¬4 (CZTS) and Sb2S3 for thin-film solar cells and thermoelectric generator. By tweaking the surface chemistry of CZTS nanocrystals, we fabricated CZTS thin-films with high carrier mobility and large grain size without involving hazardous procedure. We …
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Elektrochemische Legierungsabscheidung zur Herstellung von Cu2ZnSnS4 Dünnschichtsolarzellen
… geeigneten Verbindungshalbleiter Cu2ZnSnS4 (CZTS) und Cu2ZnSnS(4-x)Sex (x<3, CZTSSe) konnten erfolgreich durch Kombination der elektrochemischen Legierungsabscheidung und der anschließenden Sulfurisierung in H2S-haltiger Atmosphäre hergestellt werden. In früheren Arbeiten wurden die viel …
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Earth-Abundant Thin-Film Devices for Photovoltaic and Electrochemical Applications
… water supplies. Solution-processed Cu2ZnSnSe4 (CZTS) photovoltaic (PV) devices are a promising technology for next-generation PV devices because of their earth-abundant constituents and ability to be scaled up with roll-to-roll processing. This work identifies critical processing parameters …
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Cu2ZnSn(S,Se)4 photovoltaic absorber fabrication by hydride chalcogenization of electrodeposited precursors
Cu2ZnSn(S,Se)4 (CZTSSe) is a semiconducting material with potential application as the absorber layer in thin-film photovoltaic (PV) devices. Closely related to the commercially available Cu(In,Ga)Se2 (CIGS) absorber material, CZTSSe consists of more readily-available materials, and may therefore …
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Optical Investigations of Cd Free Cu<sub>2</sub>ZnSnS<sub>4</sub> Solar Cells
… design of the Cu<sub>2</sub>ZnSnS<sub>4</sub> (CZTS) solar cells with In<sub>2</sub>S<sub>3</sub>, ZnS and ZnSe as buffer layers. The model is parameterized with the complex index of refraction of each layer in the stack. Using optical modeling, the quantum efficiency (QE) of the solar cell is …
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Scanning probe microscopy study of thin film solar cells
… x] Ga [subscript 1-x] Se₂ (CIGS), Cu₂ZnSnS₄ (CZTS) and Cu₂ZnSnSe₄ (CZTSe), have been intensively studied for their unique features and excellent prospect of mass production in industry. The p-n junction is the most critical part of the thin film solar cell and greatly influences the …
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First-Principles Studies of Electronic, Optical and Defect Properties of Photovoltaic Materials
… candidate based on kesterite Cu2ZnSn(S,Se)4 (CZTS) peaked at relatively low efficiencies (12.6%) due to the limited open circuit voltage (Voc) caused by the prevalent anti-site structure disorder (e.g. Cu on Zn, Zn on Cu). A possible path forward to reduce this antisite disorder is to pursue …
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Nanocrystal Synthesis and Thin Film Formation for Earth Abundant Photovoltaics
… electricity. Solar cells with Cu2ZnSn(S,Se)¬4¬ (CZTSSe) absorber layers are of particular interest due to the high absorption coefficient of CZTSSe, its band gap in the ideal range for efficient photovoltaic power conversion, and the relative abundance of its constituent elements in the earth’s …
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Solution-Processed Solar Cells via Nanocrystal Inks and Molecular Solutions
On February 15, 2008 the National Academy of Engineering unveiled their fourteen grand challenges of engineering for the 21st century. At the top of the list and voted by the public as the most important challenge was the thrust to make solar energy economical. My research has been dedicated to …
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Phase stability and formation in the Cu-Zn-Sn-S system
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01