Search Results - "Schoenfeld, Winston V."

High-Performance TiO2-Based Electron-Selective Contacts for Crystalline Silicon Solar Cells by Yang, Xinbo, Bi, Qunyu, Ali, Haider, Davis, Kristopher, Schoenfeld, Winston V., Weber, Klaus

“…Thin TiO2 films are demonstrated to be an excellent electron‐selective contact for crystalline silicon solar cells. An efficiency of 21.6% is achieved for…”
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Solar blind photodetector based on epitaxial zinc doped Ga2O3 thin film by Alema, Fikadu, Hertog, Brian, Ledyaev, Oleg, Volovik, Dmitry, Thoma, Grant, Miller, Ross, Osinsky, Andrei, Mukhopadhyay, Partha, Bakhshi, Sara, Ali, Haider, Schoenfeld, Winston V.

“…We report on the fabrication and characterization of solar blind photodetectors (SBPs) based on undoped β‐Ga2O3 and Zn doped (∼5 × 1020 cm−3) β‐Ga2O3 (ZnGaO)…”
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Growth of high Mg content wurtzite MgZnO epitaxial films via pulsed metal organic chemical vapor deposition by Alema, Fikadu, Ledyaev, Oleg, Miller, Ross, Beletsky, Valeria, Osinsky, Andrei, Schoenfeld, Winston V.

“…We report on the growth of high Mg content, high quality, wurtzite MgxZn1−xO (MgZnO) epitaxial films using a pulsed metal organic chemical vapor deposition…”
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High Figure‐of‐Merit Gallium Oxide UV Photodetector on Silicon by Molecular Beam Epitaxy: A Path toward Monolithic Integration by Mukhopadhyay, Partha, Hatipoglu, Isa, Sakthivel, Tamil Selvan, Hunter, Daniel A., Edwards, Paul R., Martin, Robert W., Naresh-Kumar, Gunasekar, Seal, Sudipta, Schoenfeld, Winston V.

“…A high figure‐of‐merit UV‐C solar‐blind photodetector (PD) fabricated from thin‐film beta‐gallium oxide (β‐Ga2O3) grown on n‐Si substrates by plasma‐assisted…”
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The effect of substrate temperature and source flux on cubic ZnMgO UV sensors grown by plasma-enhanced molecular beam epitaxy by Boutwell, R. Casey, Wei, Ming, Schoenfeld, Winston V.

“…•Novel Mg/Au contacts utilized for low-work function Ohmic contact to cubic ZnMgO thin films.•For the first time, deep UV ZnMgO sensor performance is…”
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Investigation and impact of oxygen plasma compositions on cubic ZnMgO grown by Molecular Beam Epitaxy by Casey Boutwell, R., Wei, M., Baudelet, Matthieu, Schoenfeld, Winston V.

“…•Optical Emission Spectroscopy of low-pressure Oxygen plasma.•Roughness decreased and growth rate increased in Oxygen-rich growth conditions.•Induced crystal…”
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Temperature and pulse duration effects on the growth of MgZnO via pulsed metal organic chemical vapor deposition by Alema, Fikadu, Hertog, Brian, Ledyaev, Oleg, Miller, Ross, Osinsky, Andrei, Schoenfeld, Winston V.

“…The effect of substrate temperature (TS) and pulse duration (PD) on Mg incorporation, surface quality, and photoresponse properties of MgZnO films grown via…”
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Epitaxial growth of Co3O4 thin films using Co(dpm)3 by MOCVD by Alema, Fikadu, Osinsky, Andrei, Mukhopadhyay, Partha, Schoenfeld, Winston V.

“…•Co3O4 (1 1 1) thin films were grown using Co(dpm)3 by CIS MOCVD.•Epitaxial Co3O4 films were grown on sapphire substrates with various orientations.•Pure O2…”
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High-Performance HfO2/Al2O3 Superlattice MIM Capacitor in a 200 mm High-Volume Batch-ALD Platform by Mukhopadhyay, Partha, Fletcher, Ivan, Couvertier, Zuriel C., Morris, Julio, Perez, Jennifer, Nichols, Chris, Allgair, John, Vandevere, Jim, Schoenfeld, Winston V., Aoki, Sara, Novoselic, Enzo, Lombardo, Shara, Triyoso, Dina, Kretzschmar, Jon, deVilliers, Anton, Fulford, Jim

“…We have developed a superlattice structure (SLS) of HfO2 and Al2O3 high-<inline-formula> <tex-math notation="LaTeX">{k} </tex-math></inline-formula>…”
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Simple and versatile UV-ozone oxide for silicon solar cell applications by Bakhshi, Sara, Zin, Ngwe, Ali, Haider, Wilson, Marshall, Chanda, Debashis, Davis, Kristopher O., Schoenfeld, Winston V.

“…Semiconductor surface clean is sometimes perceived as costly but long recognized as pivotal in determining the final semiconductor device performance and…”
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Solar blind Schottky photodiode based on an MOCVD-grown homoepitaxial β-Ga2O3 thin film by Alema, Fikadu, Hertog, Brian, Mukhopadhyay, Partha, Zhang, Yuewei, Mauze, Akhil, Osinsky, Andrei, Schoenfeld, Winston V., Speck, James S., Vogt, Timothy

“…We report on a high performance Pt/n−Ga2O3/n+Ga2O3 solar blind Schottky photodiode that has been grown by metalorganic chemical vapor deposition. The active…”
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Role of defects in ultra-high gain in fast planar tin gallium oxide UV-C photodetector by MBE by Mukhopadhyay, Partha, Hatipoglu, Isa, Frodason, Ymir K., Varley, Joel B., Williams, Martin S., Hunter, Daniel A., Gunasekar, Naresh K., Edwards, Paul R., Martin, Robert W., Wu, Feng, Mauze, Akhil, Speck, James S., Schoenfeld, Winston V.

“…We report ultra-high responsivity of epitaxial ( Sn x Ga 1 − x ) 2 O 3 (TGO) Schottky UV-C photodetectors and experimentally identified the source of gain as…”
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Tin Gallium Oxide Epilayers on Different Substrates: Optical and Compositional Analysis by Hunter, Daniel. A., Naresh‐Kumar, Gunasekar, Edwards, Paul R., Makydonska, Olha, Massabuau, Fabien C. P., Hatipoglu, Isa, Mukhopadhyay, Partha, Schoenfeld, Winston V., Martin, Robert W.

“…Electron beam techniques have been used to analyze the impact of substrate choice and growth parameters on the compositional and optical properties of tin…”
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Transmission Electron Microscopy and Electron Energy-Loss Spectroscopy Studies of Hole-Selective Molybdenum Oxide Contacts in Silicon Solar Cells by Ali, Haider, Maynau, Céline, Lajaunie, Luc, Gregory, Geoffrey, Wu, Lijun, Looney, John Patrick, Zhu, Yimei, Schneider, Matthew, Schoenfeld, Winston V, Davis, Kristopher O

“…In this study, substochiometric hole-selective molybdenum oxide (MoO x ) contacts in crystalline silicon (c-Si) solar cells were investigated by a combination…”
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Spatial Atomic Layer Deposition of Aluminum Oxide as a Passivating Hole Contact for Silicon Solar Cells by Öğütman, Kortan, Iqbal, Nafis, Gregory, Geoffrey, Li, Mengjie, Haslinger, Michael, Cornagliotti, Emanuele, Schoenfeld, Winston V., John, Joachim, Davis, Kristopher O.

“…Herein, tunneling aluminum oxide (Al2O3) passivation layers are demonstrated to be a candidate for hole collecting, passivating contacts when coupled with a…”
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Transmission electron microscopy based interface analysis of the origin of the variation in surface recombination of silicon for different surface preparation methods and passivation materials by Ali, Haider, Moldovan, Anamaria, Mack, Sebastian, Schoenfeld, Winston V., Davis, Kristopher O.

“…In this work, the root cause of variation in surface recombination for Si wafers after different cleaning processes and for different passivation layers is…”
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Automated detection of rear contact voids in perc cells with photoluminescence imaging by Öğütman, Kortan, Davis, Kristopher O., Ali, Haider, Martell, Steven R., Schoenfeld, Winston V.

“…An image-processing method combined with Fourier analysis is introduced in this work as a rapid and highly-automated method of detecting rear contact voids in…”
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Integration of spatially resolved ideality factor into local cell efficiency analysis with photoluminescence by Öğütman, Kortan, Davis, Kristopher O., Schneller, Eric, Yelundur, Vijay, Schoenfeld, Winston V.

“…•A new way of spatial calculation of the ideality factor at maximum power point is described.•This new variable can be inputted into a well-known method to…”
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Effective Use of UV‐Ozone Oxide in Silicon Solar Cell Applications by Zin, Ngwe, Bakhshi, Sara, Gao, Munan, Ali, Haider, Kashkoush, Ismail, Schoenfeld, Winston V.

“…It is long recognized that high‐quality surface cleaning is critical for an increased performance of solar cells and semiconductor devices. In this…”
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Effects of Separate Carrier Generation on the Emission Properties of InAs/GaAs Quantum Dots by Moskalenko, Evgenii S, Karlsson, Fredrik K, Donchev, Vesselin T, Holtz, Per Olof, Monemar, Bo, Schoenfeld, Winston V, Petroff, Pierre M

“…Individual quantum dots have been studied by means of microphotoluminescence with dual-laser excitation. The additional infrared laser influences the dot…”
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