All Stories

  1. Nanoimprinted ZnO and ZnO Quantum Dots Embedded SiO2 Layers for Inverted Bulk Heterojunction Solar Cells

    Article • Science of Advanced Materials, July 2015, American Scientific Publishers

    Dr Dae-Geun Choi

  2. Controlled Patterning of Vertical Silicon Structures Using Polymer Lithography and Wet Chemical Etching

    Article • Journal of Nanoscience and Nanotechnology, June 2015, American Scientific Publishers

    Dr Dae-Geun Choi

  3. ITO-free highly bendable and efficient organic solar cells with Ag nanomesh/ZnO hybrid electrodes

    Article • Journal of Materials Chemistry A, January 2015, Royal Society of Chemistry

    Dr Dae-Geun Choi

  4. A cupronickel-based micromesh film for use as a high-performance and low-voltage transparent heater

    Article • Journal of Materials Chemistry A, January 2015, Royal Society of Chemistry

    Dr Dae-Geun Choi

  5. Tailoring of the plasmonic and waveguide effect in bulk-heterojunction photovoltaic devices with ordered, nanopatterned structures

    Article • Organic Electronics, November 2014, Elsevier

    Dr Dae-Geun Choi

  6. Enhanced Performance and Stability of Polymer BHJ Photovoltaic Devices from Dry Transfer of PEDOT:PSS

    Article • ChemSusChem, July 2014, Wiley

    Dr Dae-Geun Choi

  7. Gold-coated silicon nanowire–graphene core–shell composite film as a polymer binder-free anode for rechargeable lithium-ion batteries

    Article • Physica E Low-dimensional Systems and Nanostructures, July 2014, Elsevier

    Dr Dae-Geun Choi

  8. High-Durable AgNi Nanomesh Film for a Transparent Conducting Electrode

    Article • Small, May 2014, Wiley

    Dr Dae-Geun Choi

  9. Hysteresis and reversible red-shift in the reflectance spectra of single-layer porous silicon during exposure to various organic vapors

    Article • Journal of the Korean Physical Society, March 2014, Korean Physical Society

    Dr Dae-Geun Choi

  10. Interior-architectured ZnO nanostructure for enhanced electrical conductivity via stepwise fabrication process

    Article • Nanoscale Research Letters, January 2014, Springer Science + Business Media

    Dr Dae-Geun Choi

  11. Direct Nanoimprint of Metal Bilayer for Tunnable Metal Photonic Properties

    Article • Japanese Journal of Applied Physics, October 2013, Institute of Physics Publishing

    Dr Dae-Geun Choi

  12. Polymer-free Vertical Transfer of Silicon Nanowires and their Application to Energy Storage

    Article • ChemSusChem, September 2013, Wiley

    Dr Dae-Geun Choi

  13. Superamphiphobic Surface by Nanotransfer Molding and Isotropic Etching

    Article • Langmuir, June 2013, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  14. Layer-by-Layer All-Transfer-Based Organic Solar Cells

    Article • Langmuir, April 2013, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  15. Embossed superhydrophobic polymer surfaces with topological variances

    Article • Macromolecular Research, February 2013, Springer Science + Business Media

    Dr Dae-Geun Choi

  16. Sub-100nm scale polymer transfer printing process for organic photovoltaic devices

    Article • Solar Energy Materials and Solar Cells, February 2013, Elsevier

    Dr Dae-Geun Choi

  17. Nanotransfer Molding of Free-Standing Nanowire and Porous Nanomembranes Suspended on Microtrenches

    Article • ACS Applied Materials & Interfaces, January 2013, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  18. Highly robust silicon nanowire/graphene core–shell electrodes without polymeric binders

    Article • Nanoscale, January 2013, Royal Society of Chemistry

    Dr Dae-Geun Choi

  19. Fabrication of ZrO2 nanopatterns for biomimetic antireflection by thermal nanoimprint lithography

    Article • Microelectronic Engineering, December 2012, Elsevier

    Dr Dae-Geun Choi

  20. Polymer Solar Cells: Efficiency Increase in Flexible Bulk Heterojunction Solar Cells with a Nano-Patterned Indium Zinc Oxide Anode (Adv. Energy Mater. 11/2012)

    Article • Advanced Energy Materials, November 2012, Wiley

    Dr Dae-Geun Choi

  21. Conformally direct imprinted inorganic surface corrugation for light extraction enhancement of light emitting diodes

    Article • Optics Express, August 2012, Optical Society of America (OSA)

    Dr Dae-Geun Choi

  22. Efficiency Increase in Flexible Bulk Heterojunction Solar Cells with a Nano-Patterned Indium Zinc Oxide Anode

    Article • Advanced Energy Materials, July 2012, Wiley

    Dr Dae-Geun Choi

  23. Large-Area Nanotemplate Process and Its Application to Roll Imprint

    Article • Japanese Journal of Applied Physics, June 2012, Japan Society of Applied Physics

    Dr Dae-Geun Choi

  24. Imprinted Pattern Profile-Dependent Optical Properties of Metal Nanostructures

    Article • Japanese Journal of Applied Physics, June 2012, Japan Society of Applied Physics

    Dr Dae-Geun Choi

  25. Large-Area Nanotemplate Process and Its Application to Roll Imprint

    Article • Japanese Journal of Applied Physics, June 2012, Japan Society of Applied Physics

    Dr Dae-Geun Choi

  26. Imprinted Pattern Profile-Dependent Optical Properties of Metal Nanostructures

    Article • Japanese Journal of Applied Physics, June 2012, Japan Society of Applied Physics

    Dr Dae-Geun Choi

  27. A Micro-System Based on Glass-Nanoporous Silicon for Optical Sensing of Organic Solvent Vapor

    Article • Journal of Nanoscience and Nanotechnology, June 2012, American Scientific Publishers

    Dr Dae-Geun Choi

  28. Effect of surface tension and coefficient of thermal expansion in 30 nm scale nanoimprinting with two flexible polymer molds

    Article • Nanotechnology, May 2012, Institute of Physics Publishing

    Dr Dae-Geun Choi

  29. Nanopatterning: Graphoepitaxy of Block-Copolymer Self-Assembly Integrated with Single-Step ZnO Nanoimprinting (Small 10/2012)

    Article • Small, May 2012, Wiley

    Dr Dae-Geun Choi, Chair Professor Sang Ouk Kim

  30. Graphoepitaxy of Block-Copolymer Self-Assembly Integrated with Single-Step ZnO Nanoimprinting

    Article • Small, February 2012, Wiley

    Dr Dae-Geun Choi, Chair Professor Sang Ouk Kim

  31. Surface plasmon-waveguide hybrid polymer light-emitting devices using hexagonal Ag dots

    Article • Optics Letters, February 2012, Optical Society of America (OSA)

    Dr Dae-Geun Choi

  32. Rapid nanopatterning of zirconium dioxide via nanoprinting and microwave-assisted annealing

    Article • RSC Advances, January 2012, Royal Society of Chemistry

    Dr Dae-Geun Choi

  33. Fabrication and Photocatalytic Effects of Tungsten Trioxide Nano-Pattern Arrays

    Article • Materials Express, September 2011, American Scientific Publishers

    Dr Dae-Geun Choi

  34. Characterization of Adhesion Properties of a UV-Curable Nanoimprint Resin with Different Amounts of Release Agents

    Article • The Journal of Adhesion, July 2011, Taylor & Francis

    Dr Dae-Geun Choi

  35. Optical characterization of anatase TiO2 films patterned by direct ultraviolet-assisted nanoimprint lithography

    Article • Microelectronic Engineering, June 2011, Elsevier

    Dr Dae-Geun Choi

  36. Characterization of adhesion property between fused silica and thermoplastic polymer film in thermal nanoimprint lithography using a novel pull-off test

    Article • Microelectronic Engineering, June 2011, Elsevier

    Dr Dae-Geun Choi

  37. Facile nanopatterning of zirconium dioxide films via direct ultraviolet-assisted nanoimprint lithography

    Article • Journal of Materials Chemistry, January 2011, Royal Society of Chemistry

    Dr Dae-Geun Choi

  38. Optimized Film Processing of Nanosilver Colloids for Photoluminescence Enhancement

    Article • Journal of Nanoscience and Nanotechnology, January 2011, American Scientific Publishers

    Dr Dae-Geun Choi

  39. Pattern-Definable and Low Cost Fabrication of Nanopatterned Conducting Polymer Film on Flexible Substrates

    Article • Journal of Nanoscience and Nanotechnology, September 2010, American Scientific Publishers

    Dr Dae-Geun Choi

  40. Fabrication of large area nanotemplate through nanosilver colloidal lithography

    Article • August 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Dae-Geun Choi

  41. A Simple Soft Lithographic Nanopatterning of Gold on Gallium Arsenide via Galvanic Displacement

    Article • Journal of Nanoscience and Nanotechnology, August 2010, American Scientific Publishers

    Dr Dae-Geun Choi

  42. Unexpected solid–solid intermixing in a bilayer of poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acidmethyl ester via stamping transfer

    Article • Organic Electronics, August 2010, Elsevier

    Dr Dae-Geun Choi

  43. Nanosilver Colloids-Filled Photonic Crystal Arrays for Photoluminescence Enhancement

    Article • Nanoscale Research Letters, July 2010, Springer Science + Business Media

    Dr Dae-Geun Choi

  44. Photovoltaic Devices with an Active Layer from a Stamping Transfer Technique: Single Layer Versus Double Layer

    Article • Langmuir, June 2010, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  45. Corrugated organic light emitting diodes for enhanced light extraction

    Article • Organic Electronics, May 2010, Elsevier

    Dr Dae-Geun Choi

  46. Active layer transfer by stamping technique for polymer solar cells: Synergistic effect of TiOx interlayer

    Article • Organic Electronics, April 2010, Elsevier

    Dr Dae-Geun Choi

  47. Effect of the ordered 2D-dot nano-patterned anode for polymer solar cells

    Article • Organic Electronics, February 2010, Elsevier

    Dr Dae-Geun Choi

  48. Solution-processable polymer based photovoltaic devices with concentration graded bilayers made via composition control of a poly(3-hexylthiophene)/[6,6]-phenyl C61-butyric acidmethyl ester

    Article • Journal of Materials Chemistry, January 2010, Royal Society of Chemistry

    Dr Dae-Geun Choi

  49. Photo-induced hybrid nanopatterning of titanium dioxide via direct imprint lithography

    Article • Journal of Materials Chemistry, January 2010, Royal Society of Chemistry

    Dr Dae-Geun Choi

  50. Mass fabrication of resistive random access crossbar arrays by step and flash imprint lithography

    Article • Nanotechnology, October 2009, Institute of Physics Publishing

    Dr Dae-Geun Choi

  51. Development of a very large-area ultraviolet imprint lithography process

    Article • Microelectronic Engineering, October 2009, Elsevier

    Dr Dae-Geun Choi

  52. Effect of surface treatments on interfacial adhesion energy between UV-curable resist and glass wafer

    Article • International Journal of Adhesion and Adhesives, September 2009, Elsevier

    Dr Dae-Geun Choi

  53. Fabrication of Plasma-induced Polymer Nanograss for a Synthetic Moth-eye Antireflection Nanostructure

    Article • Journal of the Korean Physical Society, August 2009, Korean Physical Society

    Dr Dae-Geun Choi

  54. Solution-processable polymer solar cells from a poly(3-hexylthiophene)/[6,6]-phenyl C61-butyric acidmethyl ester concentration graded bilayers

    Article • Frontiers in Human Neuroscience, July 2009, American Institute of Physics

    Dr Dae-Geun Choi

  55. Direct Imprinted Conductive Patterns using Nanosilver Colloid-Applied UV Curable Resist

    Article • Japanese Journal of Applied Physics, June 2009, Japan Society of Applied Physics

    Dr Dae-Geun Choi

  56. Direct imprint of conductive silver patterns using nanosilver particles and UV curable resin

    Article • Microelectronic Engineering, April 2009, Elsevier

    Dr Dae-Geun Choi

  57. Measurement of Surface Adhesion Force of Adhesion Promoter and Release Layer for UV-Nanoimprint Lithography

    Article • Journal of Nanoscience and Nanotechnology, February 2009, American Scientific Publishers

    Dr Dae-Geun Choi

  58. Nanoscopic Ordered Voids and Metal Caps by Controlled Trapping of Colloidal Particles at Polymeric Film Surfaces

    Article • Advanced Materials, December 2008, Wiley

    Dr Dae-Geun Choi

  59. A 4-in.-based single-step UV-NIL tool using a low vacuum environment and additive air pressure

    Article • Microelectronic Engineering, November 2008, Elsevier

    Dr Dae-Geun Choi

  60. Stamping-Based Planarization of Flexible Substrate for Low-Pressure UV Nanoimprint Lithography

    Article • Journal of Nanoscience and Nanotechnology, November 2008, American Scientific Publishers

    Dr Dae-Geun Choi

  61. Control of the Area Density of Vertically Grown ZnO Nanowires by Blending PS- b -P4VP and PS- b -PAA Copolymer Micelles

    Article • Chemistry of Materials, October 2008, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  62. Patterned Colloidal Photonic Domes and Balls Derived from Viscous Photocurable Suspensions

    Article • Advanced Materials, September 2008, Wiley

    Dr Dae-Geun Choi

  63. Effects of pattern size, dual side patterning, and imprint materials in the fabrication of antireflective structure using nanoimprint

    Article • August 2008, SPIE

    Dr Dae-Geun Choi

  64. Ultraviolet nanoimprinted polymer nanostructure for organic light emitting diode application

    Article • Frontiers in Human Neuroscience, June 2008, American Institute of Physics

    Dr Dae-Geun Choi

  65. UV-curable nanoimprint resin with enhanced anti-sticking property

    Article • Applied Surface Science, May 2008, Elsevier

    Dr Dae-Geun Choi

  66. Etch-less UV-NIL process for patterning photonic crystal structure onto OLED substrate

    Article • March 2008, SPIE

    Dr Dae-Geun Choi

  67. HYBRID NANOPATTERNING USING COLLOIDAL LITHOGRAPHY AND NANOIMPRINT FOR THE FABRICATION OF NANOTEMPLATE

    Article • International Journal of Nanoscience, February 2008, World Scientific Pub Co Pte Lt

    Dr Dae-Geun Choi

  68. Micropatterning of thin P3HT films via plasma enhanced polymer transfer printing

    Article • Journal of Materials Chemistry, January 2008, Royal Society of Chemistry

    Dr Dae-Geun Choi

  69. Direct soft UV-NIL with resist incorporating carbon nanotubes

    Article • Microelectronic Engineering, January 2008, Elsevier

    Dr Dae-Geun Choi

  70. Direct UV-imprint lithography using conductive nanofiller-dispersed UV-curable resin

    Article • January 2008, American Vacuum Society

    Dr Dae-Geun Choi

  71. Measurement of Adhesion Force by a Symmetric AFM Probe for Nano-imprint Lithography Application

    Article • Journal of Adhesion Science and Technology, January 2008, Taylor & Francis

    Dr Dae-Geun Choi

  72. Ultraviolet Nanoimprint Lithography Applicable to Thin-Film Transistor Liquid-Crystal Display

    Article • November 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Dae-Geun Choi

  73. Adhesion Promoter and Anti-Sticking Layer Effects on Adhesion Properties Using Symmetric AFM Probe

    Article • October 2007, CrossRef Test Account

    Dr Dae-Geun Choi

  74. Adhesion Promoter and Anti-Sticking Layer Effects on Adhesion Properties Using Symmetric AFM Probe

    Article • Advanced Materials Research, October 2007, Trans Tech Publications

    Dr Dae-Geun Choi

  75. Adaptive bonding technique for precise assembly of three-dimensional microstructures

    Article • Frontiers in Human Neuroscience, June 2007, American Institute of Physics

    Dr Dae-Geun Choi

  76. Replication of an UV-NIL stamp using DLC coating

    Article • Microelectronic Engineering, May 2007, Elsevier

    Dr Dae-Geun Choi

  77. Ultra-violet nanoimprint lithography applicable to thin-film transistor liquid-crystal display

    Article • March 2007, SPIE

    Dr Dae-Geun Choi

  78. Controlled Fabrication of Hollow Metal Pillar Arrays Using Colloidal Masks

    Article • Chemistry of Materials, December 2006, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  79. Fabrication of Nano- and Micro-Scale UV Imprint Stamp Using Diamond-Like Carbon Coating Technology

    Article • Journal of Nanoscience and Nanotechnology, November 2006, American Scientific Publishers

    Dr Dae-Geun Choi

  80. High-throughput step-and-repeat UV-nanoimprint lithography

    Article • Current Applied Physics, August 2006, Elsevier

    Dr Dae-Geun Choi

  81. Patterned Arrays of Au Rings for Localized Surface Plasmon Resonance

    Article • Langmuir, August 2006, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  82. Ultraviolet-nanoimprint of 40 nm scale patterns using functionally modified fluorinated hybrid materials

    Article • Nanotechnology, June 2006, Institute of Physics Publishing

    Dr Dae-Geun Choi

  83. Nanomachining by Colloidal Lithography

    Article • Small, April 2006, Wiley

    Dr Dae-Geun Choi

  84. UV nanoimprint lithography using a diamond-like carbon stamp

    Article • March 2006, SPIE

    Dr Dae-Geun Choi

  85. Nanoscopic Pd Line Arrays Using Nanocontact Printed Dendrimers

    Article • Langmuir, March 2006, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  86. Fluorinated Organic−Inorganic Hybrid Mold as a New Stamp for Nanoimprint and Soft Lithography

    Article • Langmuir, October 2005, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  87. Controlled assembly of single SWNTs bundle using dielectrophoresis

    Article • Microelectronic Engineering, July 2005, Elsevier

    Dr Dae-Geun Choi

  88. Particle Arrays with Patterned Pores by Nanomachining with Colloidal Masks

    Article • Journal of the American Chemical Society, February 2005, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  89. Nanopatterned Magnetic Metal via Colloidal Lithography with Reactive Ion Etching

    Article • Chemistry of Materials, November 2004, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  90. Two-Dimensional Polymer Nanopattern by Using Particle-Assisted Soft Lithography

    Article • Chemistry of Materials, September 2004, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  91. Magnetic nanodot arrays patterned by selective ion etching using block copolymer templates

    Article • Nanotechnology, June 2004, Institute of Physics Publishing

    Dr Dae-Geun Choi

  92. Colloidal Lithographic Nanopatterning via Reactive Ion Etching

    Article • Journal of the American Chemical Society, June 2004, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  93. 2D nano/micro hybrid patterning using soft/block copolymer lithography

    Article • Materials Science and Engineering C, January 2004, Elsevier

    Dr Dae-Geun Choi

  94. Arrays of Binary and Ternary Particles and Their Replica Pores on Patterned Microchannels

    Article • Chemistry of Materials, November 2003, American Chemical Society (ACS)

    Dr Dae-Geun Choi

  95. Effect of two-step sol–gel reaction on the mesoporous silica structure

    Article • Journal of Colloid and Interface Science, May 2003, Elsevier

    Dr Dae-Geun Choi

  96. Rheological analysis of the gelation behavior of tetraethylorthosilane/ vinyltriethoxysilane hybrid solutions

    Article • Korean Journal of Chemical Engineering, January 2002, Springer Science + Business Media

    Dr Dae-Geun Choi