Search Results - "KOLESKE, Daniel"

Nonpolar InGaN/GaN Core–Shell Single Nanowire Lasers by Li, Changyi, Wright, Jeremy B, Liu, Sheng, Lu, Ping, Figiel, Jeffrey J, Leung, Benjamin, Chow, Weng W, Brener, Igal, Koleske, Daniel D, Luk, Ting-Shan, Feezell, Daniel F, Brueck, S. R. J, Wang, George T

“…We report lasing from nonpolar p-i-n InGaN/GaN multi-quantum well core–shell single-nanowire lasers by optical pumping at room temperature. The nanowire lasers…”
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Toward Smart and Ultra‐efficient Solid‐State Lighting by Tsao, Jeffrey Y., Crawford, Mary H., Coltrin, Michael E., Fischer, Arthur J., Koleske, Daniel D., Subramania, Ganapathi S., Wang, G. T., Wierer, Jonathan J., Karlicek, Robert F.

“…Solid‐state lighting has made tremendous progress this past decade, with the potential to make much more progress over the coming decade. In this article, the…”
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Optical performance of top-down fabricated InGaN/GaN nanorod light emitting diode arrays by Li, Qiming, Westlake, Karl R, Crawford, Mary H, Lee, Stephen R, Koleske, Daniel D, Figiel, Jeffery J, Cross, Karen C, Fathololoumi, Saeed, Mi, Zetian, Wang, George T

“…Vertically aligned InGaN/GaN nanorod light emitting diode (LED) arrays were created from planar LED structures using a new top-down fabrication technique…”
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Three-Dimensional Mapping of Quantum Wells in a GaN/InGaN Core–Shell Nanowire Light-Emitting Diode Array by Riley, James R, Padalkar, Sonal, Li, Qiming, Lu, Ping, Koleske, Daniel D, Wierer, Jonathan J, Wang, George T, Lauhon, Lincoln J

“…Correlated atom probe tomography, cross-sectional scanning transmission electron microscopy, and cathodoluminescence spectroscopy are used to analyze InGaN/GaN…”
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Correlated high-resolution x-ray diffraction, photoluminescence, and atom probe tomography analysis of continuous and discontinuous InxGa1−xN quantum wells by Ren, Xiaochen, Riley, James R., Koleske, Daniel D., Lauhon, Lincoln J.

“…Atom probe tomography (APT) is used to characterize the influence of hydrogen dosing during GaN barrier growth on the indium distribution of InxGa1−xN quantum…”
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Nanocrystal-Based Light-Emitting Diodes Utilizing High-Efficiency Nonradiative Energy Transfer for Color Conversion by Achermann, Marc, Petruska, Melissa A, Koleske, Daniel D, Crawford, Mary H, Klimov, Victor I

“…We report a practical implementation of high-efficiency color conversion in an electrically pumped light-emitting diode (LED) using nonradiative energy…”
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Energy-transfer pumping of semiconductor nanocrystals using an epitaxial quantum well by Achermann, Marc, Klimov, Victor I, Petruska, Melissa A, Kos, Simon, Smith, Darryl L, Koleske, Daniel D

“…As a result of quantum-confinement effects, the emission colour of semiconductor nanocrystals can be modified dramatically by simply changing their size. Such…”
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Energy band engineering of InGaN/GaN multi-quantum-well solar cells via AlGaN electron- and hole-blocking layers by Huang, Xuanqi, Chen, Hong, Fu, Houqiang, Baranowski, Izak, Montes, Jossue, Yang, Tsung-Han, Fu, Kai, Gunning, Brendan P., Koleske, Daniel D., Zhao, Yuji

“…In this paper, we perform a comprehensive study on energy band engineering of InGaN multi-quantum-well (MQW) solar cells using AlGaN electron- and…”
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Spatial Mapping of Efficiency of GaN/InGaN Nanowire Array Solar Cells Using Scanning Photocurrent Microscopy by Howell, Sarah L, Padalkar, Sonal, Yoon, KunHo, Li, Qiming, Koleske, Daniel D, Wierer, Jonathan J, Wang, George T, Lauhon, Lincoln J

“…GaN–InGaN core–shell nanowire array devices are characterized by spectrally resolved scanning photocurrent microscopy (SPCM). The spatially resolved external…”
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Quantum-Size-Controlled Photoelectrochemical Fabrication of Epitaxial InGaN Quantum Dots by Xiao, Xiaoyin, Fischer, Arthur J, Wang, George T, Lu, Ping, Koleske, Daniel D, Coltrin, Michael E, Wright, Jeremy B, Liu, Sheng, Brener, Igal, Subramania, Ganapathi S, Tsao, Jeffrey Y

“…We demonstrate a new route to the precision fabrication of epitaxial semiconductor nanostructures in the sub-10 nm size regime: quantum-size-controlled…”
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Strain compensation in InGaN-based multiple quantum wells using AlGaN interlayers by Al Muyeed, Syed Ahmed, Sun, Wei, Wei, Xiongliang, Song, Renbo, Koleske, Daniel D., Tansu, Nelson, Wierer, Jonathan J.

“…Data are presented on strain compensation in InGaN-based multiple quantum wells (MQW) using AlGaN interlayers (ILs). The MQWs consist of five periods of…”
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Multicolor Light-Emitting Diodes Based on Semiconductor Nanocrystals Encapsulated in GaN Charge Injection Layers by Mueller, Alexander H, Petruska, Melissa A, Achermann, Marc, Werder, Donald J, Akhadov, Elshan A, Koleske, Daniel D, Hoffbauer, Mark A, Klimov, Victor I

“…Numerous technologies including solid-state lighting, displays, and traffic signals can benefit from efficient, color-selectable light sources that are driven…”
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Ultrafast and band-selective Auger recombination in InGaN quantum wells by Williams, Kristopher W., Monahan, Nicholas R., Koleske, Daniel D., Crawford, Mary H., Zhu, X.-Y.

“…In InGaN quantum well based light-emitting diodes, Auger recombination is believed to limit the quantum efficiency at high injection currents. Here, we report…”
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Log-Pile TiO2 Photonic Crystal for Light Control at Near-UV and Visible Wavelengths by Subramania, Ganapathi, Lee, Yun-Ju, Fischer, Arthur J., Koleske, Daniel D.

“…Three‐dimensional photonic crystals with an omnidirectional bandgap at visible frequencies can have significant impact on solid‐state lighting and solar‐energy…”
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Top-down fabrication and characterization of axial and radial III-nitride nanowire LEDs by Wang, George T., Li, Qiming, Wierer, Jonathan J., Koleske, Daniel D., Figiel, Jeffrey J.

“…Complex axial and radial type III‐nitride InGaN/GaN nanowire LEDs are realized using a recently developed top–down fabrication approach which enables high…”
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Multi-Colour Nanowire Photonic Crystal Laser Pixels by Wright, Jeremy B., Liu, Sheng, Wang, George T., Li, Qiming, Benz, Alexander, Koleske, Daniel D., Lu, Ping, Xu, Huiwen, Lester, Luke, Luk, Ting S., Brener, Igal, Subramania, Ganapathi

“…Emerging applications such as solid-state lighting and display technologies require micro-scale vertically emitting lasers with controllable distinct lasing…”
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Influence of pH on the Quantum-Size-Controlled Photoelectrochemical Etching of Epitaxial InGaN Quantum Dots by Xiao, Xiaoyin, Lu, Ping, Fischer, Arthur J, Coltrin, Michael E, Wang, George T, Koleske, Daniel D, Tsao, Jeffrey Y

“…Illumination by a narrow-band laser has been shown to enable photoelectrochemical (PEC) etching of InGaN thin films into quantum dots with sizes controlled by…”
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Photoelectrochemical etching of epitaxial InGaN thin films: self-limited kinetics and nanostructuring by Xiao, Xiaoyin, Fischer, Arthur J., Coltrin, Michael E., Lu, Ping, Koleske, Daniel D., Wang, George T., Polsky, Ronen, Tsao, Jeffrey Y.

“…We report here the characteristics of photoelectrochemical (PEC) etching of epitaxial InGaN semiconductor thin films using a narrowband laser with a linewidth…”
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Improving emission uniformity and linearizing band dispersion in nanowire arrays using quasi-aperiodicity by Anderson, P. Duke, Koleske, Daniel D., Povinelli, Michelle L., Subramania, Ganapathi

“…We experimentally investigate a new class of quasi-aperiodic structures for improving the emission pattern in nanowire arrays. Efficient normal emission, as…”
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Nonradiative energy transfer between colloidal quantum dot-phosphors and nanopillar nitride LEDs by Zhang, Fan, Liu, Jie, You, Guanjun, Zhang, Chunfeng, Mohney, Suzanne E, Park, Min Joo, Kwak, Joon Seop, Wang, Yongqiang, Koleske, Daniel D, Xu, Jian

“…We present in this communication our study of the nonradiative energy transfer between colloidal quantum dot (QD) phosphors and nitride nanopillar light…”
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