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Research Output 1971 2019

2019

Analysis of high Mg-incorporation into GaN via PAMBE modulation doping and molecular dynamics simulations

Ismail, F. H., Landi, M., Kelly, F. P. & Kim, K., Jan 1 2019.

Research output: Contribution to conferencePaper

Molecular dynamics
Doping (additives)
Modulation
Computer simulation
Secondary ion mass spectrometry

Development of GaN vertical high-power devices enabled by plasma-assisted molecular beam epitaxy

Kelly, F. P., Vesto, R. E., Sarker, P., Ismail, F. H. & Kim, K., Jan 1 2019.

Research output: Contribution to conferencePaper

Reactive ion etching
Power electronics
Molecular beam epitaxy
Doping (additives)
Plasmas

GaN high-performance low-leakage p-Islet MPS diodes enabled by PAMBE-based selective area growth

Sarker, P., Kelly, F. P., Vesto, R. E., Ismail, F. H. & Kim, K., Jan 1 2019.

Research output: Contribution to conferencePaper

Diodes
Defects
Reactive ion etching
Ion implantation
Leakage currents
2018

Moving mesh adaptation for Si and GaN-based power device simulation

Ismail, F., Sarker, P., Mohamed, M., Kim, K. & Ravaioli, U., Dec 1 2018, In : Journal of Computational Electronics. 17, 4, p. 1621-1629 9 p.

Research output: Contribution to journalArticle

Moving Mesh
Device Simulation
Mesh Adaptation
Semiconductor devices
Semiconductor Device Simulation

Sustained exenatide delivery via intracapsular microspheres for improved survival and function of microencapsulated porcine islets

Lew, B., Kim, I. Y., Choi, H. & Kim, K., Jan 25 2018, In : Drug Delivery and Translational Research. 8, 3, p. 857-862 6 p.

Research output: Contribution to journalArticle

Microspheres
Swine
glycolic acid
Insulin
Glucose
2017
Hydrogel
Microspheres
Encapsulation
Hydrogels
Capsules
2016

Robust neuroprotective effects of intranasally delivered iNOS siRNA encapsulated in gelatin nanoparticles in the postischemic brain

Kim, I. D., Sawicki, E., Lee, H. K., Lee, E. H., Park, H. J., Han, P. L., Kim, K., Choi, H. & Lee, J. K., Jul 1 2016, In : Nanomedicine: Nanotechnology, Biology, and Medicine. 12, 5, p. 1219-1229 11 p.

Research output: Contribution to journalArticle

Neuroprotective Agents
Gelatin
Nanoparticles
Small Interfering RNA
Brain
2015

Improvement of Ohmic contacts to n-type GaN using a Ti/Al multi-layered contact scheme

Pang, L. & Kim, K., Jan 2015, In : Materials Science in Semiconductor Processing. 29, p. 90-94 5 p.

Research output: Contribution to journalArticle

Ohmic contacts
electric contacts
Contact resistance
Surface morphology
Atomic force microscopy

Toxicity of silica nanoparticles depends on size, dose, and cell type

Kim, I. Y., Joachim, E., Choi, H. & Kim, K., Jan 1 2015, In : Nanomedicine: Nanotechnology, Biology, and Medicine. 11, 6, p. 1407-1416 10 p.

Research output: Contribution to journalArticle

Cell Size
Silicon Dioxide
Nanoparticles
Toxicity
Silica
2014

Biodegradable gelatin microspheres enhance the neuroprotective potency of osteopontin via quick and sustained release in the post-ischemic brain

Jin, Y., Kim, I. Y., Kim, I. D., Lee, H. K., Park, J. Y., Han, P. L., Kim, K., Choi, H. & Lee, J. K., Jul 2014, In : Acta Biomaterialia. 10, 7, p. 3126-3135 10 p.

Research output: Contribution to journalArticle

Osteopontin
Gelatin
Microspheres
Brain
Encapsulation

Gelatin nanoparticles enhance the neuroprotective effects of intranasally administered osteopontin in rat ischemic stroke model

Joachim, E., Kim, I. D., Jin, Y., Kim, K., Lee, J. K. & Choi, H., Nov 18 2014, In : Drug Delivery and Translational Research. 4, 5-6, p. 395-399 5 p.

Research output: Contribution to journalArticle

Osteopontin
Neuroprotective Agents
Gelatin
Nanoparticles
Stroke
High electron mobility transistors
high electron mobility transistors
Molecular beam epitaxy
high current
molecular beam epitaxy
2013

Effects of controlled surface treatment on titanium dioxide electrode nanostructure for dye-sensitized solar cells

Heil, P. E., Kang, H., Choi, H. & Kim, K., Aug 1 2013, In : Applied Physics A: Materials Science and Processing. 112, 2, p. 371-380 10 p.

Research output: Contribution to journalArticle

Titanium dioxide
Surface treatment
Nanostructures
Electrodes
Electrons

Fluoride-plasma-treated bimodal-gate-oxide ALGaN/GaN MOSHEMT for normally-off operation

Pang, L. & Kim, K., May 21 2013, 2013 IEEE Power and Energy Conference at Illinois, PECI 2013. p. 8-12 5 p. 6506026. (2013 IEEE Power and Energy Conference at Illinois, PECI 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Plasmas
Oxides
Two dimensional electron gas
Ion implantation
Leakage currents

GaN MOSHEMT using sputtered-gate-SiO2 and post-annealing treatment

Pang, L., Lian, Y., Kim, D. S., Lee, J. H. & Kim, K., 2013, 2013 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2013. p. 387-390 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric breakdown
Annealing
Electron gas
Epilayers
Drain current

High performance enhancement-mode AlGaN/GaN MOSHEMT using bimodal-gate-oxide and fluoride-based plasma treatment

Pang, L. & Kim, K., 2013, 2013 International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2013. p. 341-344 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Plasmas
Oxides
Two dimensional electron gas
Ion implantation
Leakage currents

In vitro and in vivo imaging of peptide-encapsulated polymer nanoparticles for cancer biomarker activated drug delivery

Kulsharova, G. K., Lee, M. B., Cheng, F., Haque, M., Choi, H., Kim, K., O'Brien, W. D. & Liu, G. L., Dec 1 2013, In : IEEE Transactions on Nanobioscience. 12, 4, p. 304-310 7 p., 4.

Research output: Contribution to journalArticle

Tumor Biomarkers
Drug delivery
Nanoparticles
Peptides
Polymers

Sputtered-gate-SiO2/AiGaN/GaN MOSHEMT for high breakdown voltage achievement

Pang, L., Lian, Y., Kim, D. S., Lee, J. H. & Kim, K., 2013, 2013 IEEE Power and Energy Conference at Illinois, PECI 2013. p. 13-17 5 p. 6506027

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric breakdown
Electron gas
Epilayers
Drain current
Magnetron sputtering
2012

AlGaN/GaN MOSHEMT with high-quality gate-SiO 2 achieved by room-temperature radio frequency magnetron sputtering

Pang, L., Lian, Y., Kim, D. S., Lee, J. H. & Kim, K., Aug 7 2012, In : IEEE Transactions on Electron Devices. 59, 10, p. 2650-2655 6 p., 6256713.

Research output: Contribution to journalArticle

Gates (transistor)
High electron mobility transistors
Magnetron sputtering
Sputtering
Metals
Gate dielectrics
High electron mobility transistors
high electron mobility transistors
Plasma enhanced chemical vapor deposition
Electric breakdown

Controlled release of Pantoea agglomerans E325 for biocontrol of fire blight disease of apple

Kim, I. Y., Pusey, P. L., Zhao, Y., Korban, S. S., Choi, H. & Kim, K., Jul 10 2012, In : Journal of Controlled Release. 161, 1, p. 109-115 7 p.

Research output: Contribution to journalArticle

Pantoea
Malus
Erwinia amylovora
Capsules
Plant Diseases

Simultaneous enhancement of current and breakdown voltage in AlGaN / GaN MOSHEMTs using sputtered / PECVD gate-dielectrics

Pang, L. & Kim, K., 2012, 2012 IEEE Power and Energy Conference at Illinois, PECI 2012. 6184602

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gate dielectrics
High electron mobility transistors
Plasma enhanced chemical vapor deposition
Electric breakdown
Drain current

Transfer printing of flexible hybrid inductor-capacitor filters via pre-etched silicon-on-insulator mother wafer

Pang, L., Seo, H. C. & Kim, K., Aug 6 2012, In : Applied Physics Letters. 101, 6, 063113.

Research output: Contribution to journalArticle

inductors
printing
capacitors
insulators
wafers
2011

Integration of type II nanorod heterostructures into photovoltaics

McDaniel, H., Heil, P. E., Tsai, C. L., Kim, K. & Shim, M., Sep 27 2011, In : ACS Nano. 5, 9, p. 7677-7683 7 p.

Research output: Contribution to journalArticle

Nanorods
nanorods
Heterojunctions
cost effectiveness
Carrier transport

Interface analysis of Ti/Al/Ti/Au ohmic contacts with regrown n + -GaN layers using molecular beam epitaxy

Seo, H. C., Sivaramakrishnan, S., Zuo, J-M., Pang, L., Krein, P. T. & Kim, K., Dec 1 2011, In : Surface and Interface Analysis. 43, 13, p. 1627-1631 5 p.

Research output: Contribution to journalArticle

Ohmic contacts
Molecular beam epitaxy
electric contacts
molecular beam epitaxy
Metals

Modeling of small-molecule release from crosslinked hydrogel microspheres: Effect of crosslinking and enzymatic degradation of hydrogel matrix

Cheng, F., Choy, Y. B., Choi, H. & Kim, K., Jan 17 2011, In : International Journal of Pharmaceutics. 403, 1-2, p. 90-95 6 p.

Research output: Contribution to journalArticle

Hydrogel
Microspheres
Glutaral
Gelatin
Pharmaceutical Preparations
Ohmic contacts
High electron mobility transistors
high electron mobility transistors
Molecular beam epitaxy
electric contacts

The effect of biodegradable gelatin microspheres on the neuroprotective effects of high mobility group box 1 A box in the postischemic brain

Jin, Y. C., Kim, S. W., Cheng, F., Shin, J. H., Park, J. K., Lee, S., Lee, J. E., Han, P. L., Lee, M., Kim, K., Choi, H. & Lee, J. K., Jan 1 2011, In : Biomaterials. 32, 3, p. 899-908 10 p.

Research output: Contribution to journalArticle

Neuroprotective Agents
Gelatin
Microspheres
Middle Cerebral Artery Infarction
Brain
2010

Breakdown voltage enhancement of AlGaN/GaN high-electron-mobility transistors via selective-area growth for ohmic contacts over ion implantation

Pang, L., Seo, H. C., Chapman, P., Adesida, I. & Kim, K., May 1 2010, In : Journal of Electronic Materials. 39, 5, p. 499-503 5 p.

Research output: Contribution to journalArticle

Ohmic contacts
High electron mobility transistors
high electron mobility transistors
Electric breakdown
electrical faults

Generation of stable multi-jets by flow-limited field-injection electrostatic spraying and their control via I-V characteristics

Gu, W., Heil, P. E., Choi, H. & Kim, K., Dec 15 2010, In : Journal of Physics D: Applied Physics. 43, 49, 492001.

Research output: Contribution to journalArticle

spraying
Spraying
Electrostatics
electrostatics
injection

Large-periphery AlGaN/GaN high electron mobility transistors for high-power operation

Pang, L., Zheng, Z., Seo, H. C., Chapman, P., Krein, P. T., Lee, J. H., Kim, K. W. & Kim, K., Aug 24 2010, 2010 18th Biennial University/Government/Industry Micro-Nano Symposium, UGIM 2010 - Proceedings. 5508902. (Biennial University/Government/Industry Microelectronics Symposium - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

High electron mobility transistors
Electric breakdown
Molecular beam epitaxy
Leakage currents
Current density

Structural properties of AlN grown on sapphire at plasma self-heating conditions using reactive magnetron sputter deposition

Seo, H. C., Petrov, I. & Kim, K., Aug 1 2010, In : Journal of Electronic Materials. 39, 8, p. 1146-1151 6 p.

Research output: Contribution to journalArticle

Sputter deposition
Aluminum nitride
Aluminum Oxide
aluminum nitrides
Sapphire

TiO2 nanoparticle generation by flame pyrolysis FFESS system

Kang, H., Heil, P. E., Choi, H. & Kim, K., Dec 1 2010, 2010 10th IEEE Conference on Nanotechnology, NANO 2010. p. 493-496 4 p. 5697789. (2010 10th IEEE Conference on Nanotechnology, NANO 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

spraying
pyrolysis
flames
nanoparticles
electric fields

TiO2 nanoparticle-nanofiber composites and their application in dye-sensitized solar cells

Heil, P. E., Kang, H., Choi, H. & Kim, K., Dec 1 2010, 2010 10th IEEE Conference on Nanotechnology, NANO 2010. p. 482-485 4 p. 5697786. (2010 10th IEEE Conference on Nanotechnology, NANO 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

solar cells
dyes
nanoparticles
composite materials
light scattering
2009

Elastic buckling of AlN ribbons on elastomeric substrate

Seo, H. C., Petrov, I., Jeong, H., Chapman, P. & Kim, K., Mar 18 2009, In : Applied Physics Letters. 94, 9, 092104.

Research output: Contribution to journalArticle

elastic buckling
ribbons
crack initiation
high vacuum
crystallinity

Uniform ethyl cellulose microspheres of controlled sizes and polymer viscosities and their drug-release profiles

Choy, Y. B., Choi, H. & Kim, K., Apr 15 2009, In : Journal of Applied Polymer Science. 112, 2, p. 850-857 8 p.

Research output: Contribution to journalArticle

Microspheres
Cellulose
Polymers
Viscosity
Pharmaceutical Preparations
2008

Copper nanowires with a five-twinned structure grown by chemical vapor deposition

Kim, C., Gu, W., Briceno, M., Robertson, I. M., Choi, H. & Kim, K., May 19 2008, In : Advanced Materials. 20, 10, p. 1859-1863 5 p.

Research output: Contribution to journalArticle

Nanowires
Copper
Chemical vapor deposition
Substrates
Metals
Field emission displays
Nanowires
Chemical vapor deposition
Copper
Passivation

Formation of low-resistance ohmic contact by damage-proof selective-area growth of single-crystal n + -GaN using plasma-assisted molecular beam epitaxy

Seo, H. C., Hong, S. J., Chapman, P. & Kim, K., May 1 2008, In : Journal of Electronic Materials. 37, 5, p. 635-640 6 p.

Research output: Contribution to journalArticle

Ohmic contacts
low resistance
Molecular beam epitaxy
electric contacts
Etching

Monodisperse gelatin microspheres as a drug delivery vehicle: Release profile and effect of crosslinking density

Choy, Y. B., Cheng, F., Choi, H. & Kim, K., Aug 11 2008, In : Macromolecular Bioscience. 8, 8, p. 758-765 8 p.

Research output: Contribution to journalArticle

Gelatin
Microspheres
Drug delivery
Crosslinking
Glutaral

Ti-based nonalloyed Ohmic contacts for Al 0.15 Ga 0.85 N/GaN high electron mobility transistors using regrown n + -GaN by plasma assisted molecular beam epitaxy

Seo, H. C., Chapman, P., Cho, H. I., Lee, J. H. & Kim, K., Sep 19 2008, In : Applied Physics Letters. 93, 10, 102102.

Research output: Contribution to journalArticle

high electron mobility transistors
electric contacts
molecular beam epitaxy
contact resistance
low resistance

Uniform chitosan microspheres for potential application to colon-specific drug delivery

Choy, Y. B., Cheng, F., Choi, H. & Kim, K., Dec 8 2008, In : Macromolecular Bioscience. 8, 12, p. 1173-1181 9 p.

Research output: Contribution to journalArticle

Chitosan
Microspheres
Drug delivery
Crosslinking
Colon
2007

A quantum mechanical theory for single molecule - Single nanoparticle surface enhanced Raman scattering

Gu, W., Choi, H. & Kim, K., Aug 23 2007, In : Journal of Physical Chemistry A. 111, 33, p. 8121-8125 5 p.

Research output: Contribution to journalArticle

Raman scattering
Raman spectra
Nanoparticles
nanoparticles
Molecules

Comprehensive model for fine Coulomb fission of liquid droplets charged to Rayleigh limit

Gu, W., Heil, P. E., Choi, H. & Kim, K., Aug 17 2007, In : Applied Physics Letters. 91, 6, 064104.

Research output: Contribution to journalArticle

fission
spraying
liquids
electrostatics
flow velocity

Macromolecule release from monodisperse PLG microspheres: Control of release rates and investigation of release mechanism

Berkland, C., Pollauf, E., Raman, C., Silverman, R., Kim, K. & Pack, D. W., May 2007, In : Journal of Pharmaceutical Sciences. 96, 5, p. 1176-1191 16 p.

Research output: Contribution to journalArticle

Microspheres
Macromolecules
lissamine rhodamine B
Injections
Biodegradable polymers

Monodisperse liquid-filled biodegradable microcapsules

Berkland, C., Pollauf, E., Varde, N., Pack, D. W. & Kim, K., May 1 2007, In : Pharmaceutical Research. 24, 5, p. 1007-1013 7 p.

Research output: Contribution to journalArticle

Capsules
Liquids
Technology
Encapsulation
Fabrication

Uniform biodegradable hydrogel microspheres fabricated by a surfactant-free electric-field-assisted method

Choy, Y. B., Choi, H. & Kim, K., Apr 10 2007, In : Macromolecular Bioscience. 7, 4, p. 423-428 6 p.

Research output: Contribution to journalArticle

Hydrogel
Microspheres
Hydrogels
Surface-Active Agents
Surface active agents
2006

A new approach to accurate resistivity measurement for a single nanowire - Theory and application

Gu, W. & Kim, K., Dec 1 2006, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC. Vol. 1. p. 304-305 2 p. 4388875

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanowires
Nanostructures
Ohmic contacts
Systematic errors
Contact resistance

A quantum mechanical approach to an analytical expression of the single-molecule-single-nanoparticle surface enhanced Raman scattering

Wenhua, G. & Kyekyoon, K., Jan 1 2006, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC. IEEE Computer Society, p. 136-137 2 p. 4388718. (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Raman scattering
Nanoparticles
Molecules
Spontaneous emission
Electromagnetic fields

Field emission characteristics of vertically aligned free-standing copper nanowires grown by chemical vapor deposition with no template

Gu, W., Lim, S., Gao, J., Choi, H. & Kim, K., Dec 1 2006, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC. p. 194-195 2 p. 4388739. (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Field emission
Nanowires
Copper
Chemical vapor deposition
Carbon Nanotubes