Publications by authors named "Han Gyeol Park"

We present parameters that allow the dielectric function ( = + 2) of perovskite SrTiO₃ (STO) to be calculated for spectral range from 0.74 to 6.42 eV and temperatures from 26 to 674 K.

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We report values of parametric-model (PM) parameters that can be used to obtain dielectric functions (refractive indices) from 1.5 to 6.0 eV for ${{\rm In}_x}{{\rm Al}_{1 - x}}{\rm P}$InAlP alloys of arbitrary compositions $x$x.

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We present analytic representation of dielectric function ( ═ + ₂) data from 1.7 to 5.0 eV for the temperature from 300 to 803 K of oxide-free AlSb that are the closest representation to date of the intrinsic bulk dielectric response of the material.

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Objective: To discuss the possible pathophysiologic mechanism of pulsatile tinnitus (PT) perception due to high jugular bulb with bony dehiscence (HJBD) and its improvement after the dehiscent jugular bulb (JB) resurfacing using bone cement, and to describe the efficacy of an objective measure of PT using transcanal sound recording and spectro-temporal analysis (TSR/STA).

Study Design: Retrospective case series study.

Setting: A university-based, tertiary care cancer center.

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Background And Objectives: Dizzy patients with abnormal otolith function tests, despite a normal caloric response, are defined as having specific (isolated) otolith organ dysfunction. This study was performed to compare the differences in clinical presentation between isolated otolith dysfunction (iOD) patients with lab- and Sx-based iOD group and lab-based iOD symptoms.

Subject And Methods: The medical records of 23 iOD patients with normal caloric response but abnormal cervical vestibular evoked myogenic potential (VEMP), ocular VEMP, or subjective visual vertical were reviewed.

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The complex dielectric function and band-edge critical point structures of Bi1.85Gd0.15Te3 are reported for temperatures from 28 to 300 K and energies from 0.

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For organic solar cells (OSCs) based on nonplanar phthalocyanines, it has previously been reported that a thin film composed of triclinic crystals with face-on (or flat-lying)-oriented molecules, typically obtained with a CuI template layer, is desired for optical absorption in the near-infrared (NIR) spectral region. However, this work demonstrates that for a PbPc-C donor-acceptor pair, less face-on orientation with a broader orientation distribution obtained with a new template layer consisting of a ZnPc/CuI bilayer is more desirable in terms of solar cell efficiency than the face-on orientation. A NIR-sensitive PbPc-C OSC employing this bilayer-templated PbPc film is found to increase the internal quantum efficiency (IQE) by 36% on average in the NIR spectral region compared to a device using a CuI-templated PbPc film.

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The dielectric function [Formula: see text] of monolayer molybdenum diselenide (MoSe) is obtained and analyzed at temperatures from 31 to 300 K and at energies from 0.74 to 6.42 eV.

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The epidermal growth factor receptor (EGFR) protein has received significant attention in medical biotechnology because it is an important component in cell growth and division. We report the results of a study on the binding between the EGFR protein and the associated aptamer, measured in real time. Aptamers can be used for clinical purposes including macromolecular medicine and basic research.

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The dielectric functions of amorphous GdAlO(x) (GAO) films grown by the sol-gel process were investigated from 1.12 to 8.5 eV as a function of annealing temperature using spectroscopic ellipsometry (SE).

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