Authors

Younghun Kim

· ORCID 0000-0003-4860-8632

Publications 3

Research article Open access

Mechanically Modulated Photothermal Dynamics in Au-PDMS Nanocomposites for Non-Contact Stress Sensing

Woosuk Chung, Rengaraj Selvaraj, Younghun Kim · Sultan Qaboos University Journal for Science · 2026 · 10.53539/2414-536x.1432

Photothermal films used in flexible and wearable devices are inevitably exposed to mechanical deformation, yet their thermal response under such conditions remains poorly quantified. In this work, gold nanoparticle–embedded polydimethylsiloxane (Au@PDMS) films are fabricated and their photothermal behavior is examined …

Research article Open access

An Improved Mnemonic Device for Thermodynamic Relations

Younghun Kim, Rengaraj Selvaraj · Sultan Qaboos University Journal for Science · 2016 · 10.24200/squjs.vol21iss2pp102-106

An improved mnemonic device for thermodynamic relations between state variables and potentials was proposed in the form of a thermodynamic circle. Based on separating the Born square into an inner square (T, P, V, and S) and an outer circle (G, A, U, and H), relations such as Legendre transforms, Maxwell equations, equ …

Research article Open access

A Simple Surfactant-Free Solution Phase Synthesis of Flower-like In2S3 Hierarchitectures and their Photocatalytic Activities

Rengaraj Selvaraj, Kezhen Qi, Uiseok Jeong et al. · Sultan Qaboos University Journal for Science · 2015 · 10.24200/squjs.vol19iss2pp29-36

Flower-like In2S3 hierarchical nanostructures were successfully prepared via a facile solution-phase route, using thiacetamide as both sulfur source and capping agent. Our experimental results demonstrated that the morphology of these In2S3 nanostructures can be easily modified by changing the ratio of In(NO3)3/thiacet …

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