Han Wook Song
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View article: High on/off ratio SiO<sub>2</sub>-based memristors for neuromorphic computing: understanding the switching mechanisms through theoretical and electrochemical aspects
High on/off ratio SiO<sub>2</sub>-based memristors for neuromorphic computing: understanding the switching mechanisms through theoretical and electrochemical aspects Open
Finite element analysis provides visual insights into conductive path evolution in a SiO 2 -based memristor. Electrochemical impedance spectroscopy experimentally validated the theoretical findings by interpreting with an equivalent circui…
View article: From non-aqueous liquid to solid-state Li–S batteries: design protocols, challenges and solutions
From non-aqueous liquid to solid-state Li–S batteries: design protocols, challenges and solutions Open
This work demonstrates the design protocols for high-energy-density solid-state Li–S batteries (SSLSBs). Also, it highlights the challenging issues for achieving practical SSLSBs towards the application in next-level electric transportatio…
View article: Development of the optical vacuum standard system in KRISS
Development of the optical vacuum standard system in KRISS Open
Recently, 'a new realization of the Pascal' by using photon technology showed comparable results in terms of performance compared to the existing primary standard based on a mercury manometer.In this study, we describe KRISS optical vacuum…
View article: Mold‐Free Manufacturing of Highly Sensitive and Fast‐Response Pressure Sensors Through High‐Resolution 3D Printing and Conformal Oxidative Chemical Vapor Deposition Polymers
Mold‐Free Manufacturing of Highly Sensitive and Fast‐Response Pressure Sensors Through High‐Resolution 3D Printing and Conformal Oxidative Chemical Vapor Deposition Polymers Open
A new manufacturing paradigm is showcased to exclude conventional mold‐dependent manufacturing of pressure sensors, which typically requires a series of complex and expensive patterning processes. This mold‐free manufacturing leverages hig…
View article: Recent achievements toward the development of Ni-based layered oxide cathodes for fast-charging Li-ion batteries
Recent achievements toward the development of Ni-based layered oxide cathodes for fast-charging Li-ion batteries Open
This review enhances a fundamental understanding of the degradation mechanisms of Ni-based layered cathodes under fast-charging conditions from atomic to electrode scales. Design strategies for enhancing fast-charging performance are also …
View article: Enhancing memristor fundamentals through instrumental characterization and understanding reliability issues
Enhancing memristor fundamentals through instrumental characterization and understanding reliability issues Open
A memristor is a promising synaptic device for neuromorphic computing. This review article encompasses various instrumental characterization methods which enhance a fundamental understanding of the switching and reliability mechanisms of m…
View article: Low-temperature metal/Zerodur heterogeneous bonding through gas-phase processed adhesion promoting interfacial layers
Low-temperature metal/Zerodur heterogeneous bonding through gas-phase processed adhesion promoting interfacial layers Open
The bonding of ceramic to metal has been challenging due to the dissimilar nature of the materials, particularly different surface properties and the coefficients of thermal expansion (CTE). To address the issues, gas phase-processed thin …
View article: Geographical Traceability of &lt;i&gt;Clinacanthus nutans&lt;/i&gt; with Near-Infrared Pectroscopy and Chemometrics
Geographical Traceability of <i>Clinacanthus nutans</i> with Near-Infrared Pectroscopy and Chemometrics Open
In this study, a seed origin discrimination model for Clinacanthus nutans was developed. First, 81 C. nutans samples from three seed origin locations were collected, and their Near-Infrared (NIR) spectra were obtained. Next, Principal Comp…
View article: Binder-free printed PEDOT wearable sensors on everyday fabrics using oxidative chemical vapor deposition
Binder-free printed PEDOT wearable sensors on everyday fabrics using oxidative chemical vapor deposition Open
Health-monitoring sensors directly fabricated on disposable wears using oxidative chemical vapor deposition.
View article: Preliminary results of KRISS optical pressure standard system
Preliminary results of KRISS optical pressure standard system Open
As the harmfulness of mercury has recently emerged, the development of a new concept of primary standard that does not use mercury is required in the low vacuum field. Among these new pressure realization methods, recently, theres have bee…
View article: Ultrahigh Active Material Content and Highly Stable Ni-Rich Cathode Leveraged by Oxidative Chemical Vapor Deposition
Ultrahigh Active Material Content and Highly Stable Ni-Rich Cathode Leveraged by Oxidative Chemical Vapor Deposition Open