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2020

Broadband antireflective coatings for high efficiency InGaP/GaAs/InGaAsP/InGaAs multi-junction solar cells

Oh, G., Kim, Y., Lee, S. J. & Kim, E. K., 2020 Apr, In : Solar Energy Materials and Solar Cells. 207, 110359.

Research output: Contribution to journalArticle

Antireflection coatings
Solar cells
Coatings
Multi-junction solar cells
gallium arsenide

Ferromagnetic properties of MoS2 film doped by Fe using chemical vapour deposition

Park, C. S., Shon, Y., Lee, J. & Kim, E. K., 2020 Feb, In : Solid State Communications. 306, 113776.

Research output: Contribution to journalArticle

Chemical vapor deposition
Iron
vapor deposition
iron
room temperature
2019
1 Citation (Scopus)

Antireflection Coatings with Graded Refractive Index of Indium Tin Oxide for Si-based Solar Cells

Oh, G. & Kim, E. K., 2019 Jan 1, In : Journal of the Korean Physical Society. 74, 2, p. 127-131 5 p.

Research output: Contribution to journalArticle

antireflection coatings
indium oxides
tin oxides
solar cells
refractivity

Characteristics of p-type conduction in P-doped MoS2 by phosphorous pentoxide during chemical vapor deposition

Lee, J. S., Park, C. S., Kim, T. Y., Kim, Y. S. & Kim, E. K., 2019 Sep, In : Nanomaterials. 9, 9, 1278.

Research output: Contribution to journalArticle

Open Access
Field effect transistors
Chemical vapor deposition
Monolayers
Core levels
Binding energy

Defect states of organic lead halide single crystals grown by inverseerature crystallization

Vu, T. K. O., Lee, D. U., Lee, K. S., Park, D. Y., Jeong, M. S. & Kim, E. K., 2019 Oct 7, In : Applied Physics Letters. 115, 15, 153302.

Research output: Contribution to journalArticle

halides
traps
crystallization
single crystals
defects

First observation of electronic trap levels in freestanding GaN crystals extracted from Si substrates by hydride vapour phase epitaxy

Lee, M., Ahn, C. W., Vu, T. K. O., Lee, H. U., Kim, E. K. & Park, S., 2019 Dec 1, In : Scientific reports. 9, 1, 7128.

Research output: Contribution to journalArticle

Open Access
Spectrum Analysis
Observation
Luminescence
Electrons
Costs and Cost Analysis

Hole Conduction of Tungsten Diselenide Crystalline Transistors by Niobium Dopant

Chu, D. & Kim, E. K., 2019 Feb 1, In : Advanced Electronic Materials. 5, 2, 1800695.

Research output: Contribution to journalArticle

Niobium
Tungsten
Transistors
Doping (additives)
Crystalline materials

Long-Term Chemical Aging of Hybrid Halide Perovskites

Park, B. W., Lee, D. U., Jung, D., Yang, W. S., Oanh Vu, T. K., Shin, T. J., Baik, J., Hwang, C. C., Kim, E. K. & Seok, S. I., 2019 Aug 14, In : Nano letters. 19, 8, p. 5604-5611 8 p.

Research output: Contribution to journalArticle

perovskites
halides
solar cells
Aging of materials
Defects

Performance of thyristor memory device formed by a wet etching process

Yoo, J., Oh, G., Kim, M. W., Song, S. H., Yoo, S. D., Shim, T. H. & Kim, E. K., 2019 Jan 18, In : Nanotechnology. 30, 3, 035205.

Research output: Contribution to journalArticle

Wet etching
Thyristors
Data storage equipment
Electric potential
Silicon
2 Citations (Scopus)

The effect of oxygen partial pressure on band gap modulation of Ga2O3 grown by pulsed laser deposition

Oanh Vu, T. K., Lee, D. U. & Kim, E. K., 2019 Oct 25, In : Journal of Alloys and Compounds. 806, p. 874-880 7 p.

Research output: Contribution to journalArticle

Pulsed laser deposition
Partial pressure
Energy gap
Modulation
Oxygen
2018
1 Citation (Scopus)

Electronic states of deep trap levels in a-plane GaN templates grown on r-plane sapphire by HVPE

Lee, M., Vu, T. K. O., Lee, K. S., Kim, E. K. & Park, S., 2018 Dec 1, In : Scientific reports. 8, 1, 7814.

Research output: Contribution to journalArticle

vapor phase epitaxy
hydrides
sapphire
templates
traps
4 Citations (Scopus)

Electronic transport mechanism for schottky diodes formed by au/HVPE a-plane GaN templates grown via in situ GaN nanodot formation

Lee, M., Vu, T. K. O., Lee, K. S., Kim, E. K. & Park, S., 2018 Jun 2, In : Nanomaterials. 8, 6, 397.

Research output: Contribution to journalArticle

Vapor phase epitaxy
Hydrides
Diodes
Thermionic emission
Point defects
3 Citations (Scopus)

Fabry-Perot cavity resonance enabling highly polarization-sensitive double-layer gold grating

Hwang, J., Oh, B., Kim, Y., Silva, S., Kim, J. O., Czaplewski, D. A., Ryu, J. E., Kim, E. K., Urbas, A., Zhou, J., Ku, Z. & Lee, S. J., 2018 Dec 1, In : Scientific reports. 8, 1, 14787.

Research output: Contribution to journalArticle

Aptitude
Imagery (Psychotherapy)
Gold
Light
Psychological Extinction
3 Citations (Scopus)

Formation of transition metal dichalcogenides thin films with liquid phase exfoliation technique and photovoltaic applications

Lee, S. K., Chu, D., Yoo, J. & Kim, E. K., 2018 Sep 1, In : Solar Energy Materials and Solar Cells. 184, p. 9-14 6 p.

Research output: Contribution to journalArticle

Transition metals
Thin films
Liquids
Ultraviolet photoelectron spectroscopy
Indium
4 Citations (Scopus)

High performance intermediate-band solar cells based on ZnTe:Cr with ZnO:Al electron transport layer

Lee, K. S., Oh, G. & Kim, E. K., 2018 Apr, In : Solar Energy. 164, p. 262-266 5 p.

Research output: Contribution to journalArticle

Solar cells
Defects
Thin films
Band structure
Ultraviolet photoelectron spectroscopy
4 Citations (Scopus)

Locally Gated SnS2/hBN Thin film transistors with a broadband photoresponse

Chu, D., Pak, S. W. & Kim, E. K., 2018 Dec 1, In : Scientific reports. 8, 1, 10585.

Research output: Contribution to journalArticle

boron nitrides
transistors
broadband
thin films
tin
2 Citations (Scopus)

Photovoltaic property of n-ZnO/p-Si heterojunctions grown by pulsed laser deposition

Kang, J. H., Lee, K. S. & Kim, E. K., 2018 Jul 31, In : Thin Solid Films. 658, p. 22-26 5 p.

Research output: Contribution to journalArticle

Zinc Oxide
Pulsed laser deposition
Zinc oxide
zinc oxides
pulsed laser deposition
1 Citation (Scopus)

Recent Advances in Synthesis and Assembly of van der Waals Materials

Chu, D. & Kim, E. K., 2018 Sep 1, In : Journal of the Korean Physical Society. 73, 6, p. 805-816 12 p.

Research output: Contribution to journalReview article

assembly
synthesis
graphene
transition metals
thin bodies
2017

A special issue on nanotechnology in Korea 2016-Part 1

Min, J., Choi, K. J., Choi, H., Choi, J. H., Yeom, G. Y., Rhee, J. Y., Pyo, S. G., Kim, S. Y., Moon, S. Y., Jang, W., You, S. J., Suh, M., Kang, D. J., Jeong, J. R., Yun, W. S., Rhee, J. Y., Choe, H. H., Kim, E. K., Jang, M. & Han, K., 2017 Oct, In : Journal of Nanoscience and Nanotechnology. 17, 10, 1 p.

Research output: Contribution to journalEditorial

Korea
nanotechnology
Nanotechnology
9 Citations (Scopus)

Electrical and photovoltaic properties of residue-free MoS2 thin films by liquid exfoliation method

Lee, S. K., Chu, D., Song, D. Y., Pak, S. W. & Kim, E. K., 2017 Apr 19, In : Nanotechnology. 28, 19, 195703.

Research output: Contribution to journalArticle

Thin films
Liquids
Carrier mobility
Centrifuges
Silicon
1 Citation (Scopus)

Electrical properties of thin film transistors with zinc tin oxide channel layer

Hong, S., Oh, G. & Kim, E. K., 2017 Oct 1, In : Journal of the Korean Physical Society. 71, 8, p. 500-505 6 p.

Research output: Contribution to journalArticle

zinc oxides
tin oxides
transistors
electrical properties
thin films
9 Citations (Scopus)

Enhancement of near-infrared detectability from InGaZnO thin film transistor with MoS2 light absorbing layer

Pak, S. W., Chu, D., Song, D. Y., Lee, S. K. & Kim, E. K., 2017 Oct 31, In : Nanotechnology. 28, 47, 475206.

Research output: Contribution to journalArticle

Thin film transistors
Infrared radiation
Amorphous films
Magnetron sputtering
Molybdenum

Formation and magnetic properties of InFeP:Ag nanorods fabricated with noble metal Ag using an ion milling method

Sohn, J. M., Kim, H., Im, H., Kim, H., Lee, J., Shon, Y., Subramaniam, N. G., Kang, T., Kim, D. Y., Koo, H. C., Lee, J. H., Song, J. D., Park, C. S. & Kim, E. K., 2017 Nov 21, In : Nanotechnology. 28, 50, 505702.

Research output: Contribution to journalArticle

Precious metals
Nanorods
Magnetic properties
Ions
X rays
2 Citations (Scopus)

High photoresponsivity from multilayer MoS2/Si heterojunction diodes formed by vertically stacking

Song, D. Y., Chu, D., Lee, S. K., Pak, S. W. & Kim, E. K., 2017 Sep 28, In : Journal of Applied Physics. 122, 12, 124505.

Research output: Contribution to journalArticle

heterojunctions
diodes
wavelengths
molybdenum disulfides
flakes
11 Citations (Scopus)

High power conversion efficiency of intermediate band photovoltaic solar cell based on Cr-doped ZnTe

Lee, K. S., Oh, G., Chu, D., Pak, S. W. & Kim, E. K., 2017 Oct, In : Solar Energy Materials and Solar Cells. 170, p. 27-32 6 p.

Research output: Contribution to journalArticle

Chromium
Conversion efficiency
Solar cells
Thin films
Energy gap
2584 Citations (Scopus)

Iodide management in formamidinium-lead-halide-based perovskite layers for efficient solar cells

Yang, W. S., Park, B. W., Jung, E. H., Jeon, N. J., Kim, Y. C., Lee, D. U., Shin, S. S., Seo, J., Kim, E. K., Noh, J. H. & Seok, S. I., 2017 Jun 30, In : Science. 356, 6345, p. 1376-1379 4 p.

Research output: Contribution to journalArticle

Iodides
Solar cells
Defects
Cations
Fabrication
1 Citation (Scopus)

Magnetic property (Tc ∼ 300 K) originated from InZnP:Ag nano-rods fabricated with noble metal Ag using ion milling method

Lee, J., Shon, Y., Subramaniam, N. G., Kang, T., Sohn, J. M., Kim, H., Im, H., Koo, H. C., Lee, J. H., Song, J. D., Park, C. S. & Kim, E. K., 2017 Jan 1, In : Journal of Alloys and Compounds. 704, p. 552-556 5 p.

Research output: Contribution to journalArticle

Precious metals
Magnetic properties
Ions
Transmission electron microscopy
Full width at half maximum

Reduction of interface traps between poly-Si and SiO2 layers through the dielectric recovery effect during delayed pulse bias stress

Lee, D. U., Pak, S., Lee, D., Kim, Y., Yang, H., Hong, S., Lee, S. & Kim, E. K., 2017 May 10, In : Nanotechnology. 28, 22, 225702.

Research output: Contribution to journalArticle

Polysilicon
Deep level transient spectroscopy
Recovery
Defects
Annealing
4 Citations (Scopus)

Room temperature ferromagnetic and ambipolar behaviors of MoS2 doped by manganese oxide using an electrochemical method

Park, C. S., Chu, D., Shon, Y., Lee, J. & Kim, E. K., 2017 May 29, In : Applied Physics Letters. 110, 22, 222104.

Research output: Contribution to journalArticle

manganese oxides
oxides
flakes
room temperature
field effect transistors

Room temperature ferromagnetic and semiconducting properties of graphene adsorbed with cobalt oxide using electrochemical method

Park, C. S., Lee, K. S., Chu, D., Lee, J., Shon, Y. & Kim, E. K., 2017 Dec 15, In : Journal of Magnetism and Magnetic Materials. 444, p. 361-363 3 p.

Research output: Contribution to journalArticle

cobalt oxides
Graphite
Graphene
Cobalt
graphene
2 Citations (Scopus)

Room temperature transparent conducting magnetic oxide (TCMO) properties in heavy ion doped oxide semiconductor

Lee, J., Nagarajan, G. S., Shon, Y., Kwon, Y., Kang, T. W., Kim, D. Y., Kim, H., Im, H., Park, C. S. & Kim, E. K., 2017 Aug 1, In : AIP Advances. 7, 8, 085114.

Research output: Contribution to journalArticle

heavy ions
conduction
electrical resistivity
oxides
room temperature
9 Citations (Scopus)

Selective control of electron and hole tunneling in 2D assembly

Chu, D., Hee Lee, Y. & Kim, E. K., 2017 Apr, In : Science Advances. 3, 4, e1602726.

Research output: Contribution to journalArticle

electron tunneling
assembly
majority carriers
MIS (semiconductors)
rectification
2 Citations (Scopus)

Semiconducting properties of perchlorate-doped graphene using an electrochemical method

Park, C. S., Chu, D., Shon, Y. & Kim, E. K., 2017 Jan 1, In : RSC Advances. 7, 27, p. 16823-16825 3 p.

Research output: Contribution to journalArticle

Graphite
Graphene
Doping (additives)
Energy gap
Acetonitrile
10 Citations (Scopus)

Structural and optical characterization of MoS2 quantum dots defined by thermal annealing

Park, S. J., Pak, S. W., Qiu, D., Kang, J. H., Song, D. Y. & Kim, E. K., 2017 Mar 1, In : Journal of Luminescence. 183, p. 62-67 6 p.

Research output: Contribution to journalArticle

Quantum Dots
Semiconductor quantum dots
Hot Temperature
quantum dots
Annealing
2016

Effect of vanadium oxide interfacial layer for electrical contact on p-type silicon

Oh, G. & Kim, E. K., 2016 Oct 1, In : Current Applied Physics. 16, 10, p. 1315-1319 5 p.

Research output: Contribution to journalArticle

Vanadium
vanadium oxides
Silicon
Oxides
electric contacts

Optical and electrical properties of indium molybdenum oxide thin films by the co-sputtering method

Jeon, J., Oh, G. & Kim, E. K., 2016 Oct 1, In : Journal of Nanoscience and Nanotechnology. 16, 10, p. 10970-10974 5 p.

Research output: Contribution to journalArticle

Molybdenum oxide
molybdenum oxides
Indium
indium oxides
Oxide films
2 Citations (Scopus)

Optimization of the p+-ZnTe layer for back contacts of ZnTe thin-film solar cells

Lee, K. S., Oh, G. & Kim, E. K., 2016 Aug 1, In : Journal of the Korean Physical Society. 69, 3, p. 416-420 5 p.

Research output: Contribution to journalArticle

solar cells
optimization
thin films
diodes
air masses

Resistive switching memory device with metal-oxide quantum dots on a graphene layer

Lee, D. U., Qiu, D. & Kim, E. K., 2016 Feb 1, In : Physica Status Solidi (A) Applications and Materials Science. 213, 2, p. 325-328 4 p.

Research output: Contribution to journalArticle

Graphite
Oxides
Graphene
Semiconductor quantum dots
metal oxides
14 Citations (Scopus)

Toward negligible charge loss in charge injection memories based on vertically integrated 2D heterostructures

Qiu, D., Lee, D. U., Lee, K. S., Pak, S. W. & Kim, E. K., 2016 Aug 1, In : Nano Research. 9, 8, p. 2319-2326 8 p.

Research output: Contribution to journalArticle

Charge injection
Heterojunctions
Data storage equipment
Metalloids
Flexible electronics
4 Citations (Scopus)

Work function modification of tungsten-doped indium oxides deposited by the co-sputtering method

Oh, G., Jeon, J., Lee, K. S. & Kim, E. K., 2016 May 1, In : Journal of Nanoscience and Nanotechnology. 16, 5, p. 5109-5113 5 p.

Research output: Contribution to journalArticle

Tungsten
indium oxides
Indium
Sputtering
tungsten
2015

Clarification of difference for transition between photoluminescence and cathode-luminescence based on GaMnN

Lee, J. W., Shon, Y., Subramaniam, N. G., Kwon, Y. H., Kang, T. W., Im, H., Kim, H. S., Park, C. S., Kim, E. K., Song, J. D., Koo, H. C. & Fu, D. J., 2015 Aug 5, In : Journal of Luminescence. 168, p. 288-292 5 p., 13530.

Research output: Contribution to journalArticle

Electron transitions
Luminescence
Photoluminescence
Electrodes
Cathodes
4 Citations (Scopus)

Effect of space layer doping on photoelectric conversion efficiency of InAs/GaAs quantum dot solar cells

Lee, K. S., Lee, D. U., Kim, E. K. & Choi, W. J., 2015 Nov 16, In : Applied Physics Letters. 107, 20, 203503.

Research output: Contribution to journalArticle

solar cells
quantum dots
defects
antireflection coatings
conduction bands
3 Citations (Scopus)

Electrical and optical properties of Si-doped indium tin oxides as transparent electrode and anti-reflection coating for solar cells

Oh, G., Lee, K. S. & Kim, E. K., 2015 Apr 21, In : Current Applied Physics. 15, 7, p. 794-798 5 p.

Research output: Contribution to journalArticle

Antireflection coatings
antireflection coatings
Tin oxides
indium oxides
Indium
36 Citations (Scopus)
graphene
transistors
metals
positioning
electric contacts
3 Citations (Scopus)

Enhancement of photoluminescence efficiency from semi-polar InGaN/GaN multiple quantum wells with silver metal

Lee, K. S., Lee, D. U. & Kim, E. K., 2015 Aug, In : Journal of Luminescence. 162, p. 115-118 4 p., 13197.

Research output: Contribution to journalArticle

Silver
Nanoparticles
Semiconductor quantum wells
Photoluminescence
Metals
4 Citations (Scopus)

Ferroelectric behavior and reproducible Bi-stable resistance switching property in K-doped ZnO thin films as candidate for application in non-volatile memories

Lee, J. W., Subramaniam, N. G., Kang, T. W., Shon, Y. & Kim, E. K., 2015 Jan 1, In : Solid State Communications. 209-210, p. 11-14 4 p.

Research output: Contribution to journalArticle

Ferroelectric materials
Tin oxides
indium oxides
Indium
tin oxides
4 Citations (Scopus)

Growth of p-type ZnTe thin films by using nitrogen doping during pulsed laser deposition

Lee, K. S., Oh, G. & Kim, E. K., 2015 Aug 7, In : Journal of the Korean Physical Society. 67, 4, p. 672-675 4 p.

Research output: Contribution to journalArticle

pulsed laser deposition
nitrogen
thin films
nitrogen atoms
gas pressure
9 Citations (Scopus)

Properties of room-temperature ferromagnetic semiconductor in manganese-doped bilayer graphene by chemical vapor deposition

Park, C. S., Zhao, Y., Shon, Y., Yoon, I. T., Lee, C. J., Song, J. D., Lee, H. & Kim, E. K., 2015 May 7, In : Journal of Materials Chemistry C. 3, 17, p. 4235-4238 4 p.

Research output: Contribution to journalArticle

Graphite
Manganese
Graphene
Chemical vapor deposition
Semiconductor materials

Relevant characteristics of undoped GaMnN grown by using molecular beam epitaxy

Lee, J. W., Shon, Y., Subramaniam, N. G., Park, C. S., Kim, E. K., Im, H. & Kim, H. S., 2015 Aug 19, In : Journal of the Korean Physical Society. 67, 3, p. 541-546 6 p.

Research output: Contribution to journalArticle

molecular beam epitaxy
magnetic resonance
precipitates
ferromagnetism
Curie temperature
4 Citations (Scopus)

Stable p-type properties of single walled carbon nanotubes by electrochemical doping

Park, C. S., Lee, C. J. & Kim, E. K., 2015 Jul 7, In : Physical Chemistry Chemical Physics. 17, 25, p. 16243-16245 3 p.

Research output: Contribution to journalArticle

Single-walled carbon nanotubes (SWCN)
carbon nanotubes
Doping (additives)
Core levels
Fermi level