Yong Soo Cho
연세대학교 · Engineering
이 교수의 연구실은 주로 전자 및 에너지 소자에 응용 가능한 첨단 페로이크 및 유기-무기 하이브리드 페로브스카이트, 저온 공구세라믹스(LTCC), 할라이드 페로브스카이트 등 신소재의 합성, 구조 제어 및 물성 최적화를 핵심 연구 분야로 삼고 있습니다. 특히 태양전지, 에너지 수확 장치, 유연한 전자소자 등 응용을 고려한 기계적 내구성 향상 및 전기적·유전적 성능 향상을 위한 나노구조 제어 기술에 중점을 두고 있습니다. 다양한 공정 조건과 화학 조성을 제어하여 새로운 상의 형성과 성능 향상을 규명하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
An enhanced conversion efficiency of ∼3.1% was achieved for non-colloidal PbS/CdS thin film solar cells with suitable band alignments.
This work reports the origin of high piezoelectricity of inorganic halide thin films poled at high fields along with the electromechanical energy-harvesting and motion-sensing performance.
A new potential low‐temperature co‐fired ceramics (LTCC) system based on a simple lanthanum borate (La 2 O 3 –B 2 O 3 ) glass was investigated with regard to phase development and microwave dielectric properties as functions of alumina filler content less than 50 wt% and firing temperature up to 1050°C. Unexpected crystalline phases, such as La(BO 2 ) 3 , LaAl 2.03 (B 4 O 10 )O 0.54 , LaBO 3 , and Al 20 B 4 O 36 , developed during the firing process are likely responsible for substantial resulta
Abstract Even though halide perovskite materials have been increasingly investigated as flexible devices, mechanical properties under flexible environments have rarely been reported on. Herein, a nonconventional deposition technique that can generate extra compressive or tensile stress in representative inorganic CsPbBr 3 and hybrid MAPbI 3 (methylammonium lead iodide) halide perovskites is proposed for higher mechanical flexibility. As an impressive result of bending fracture evaluation, fractu
A low temperature co‐fired ceramics system consisting of a typical calcium aluminoborosilicate glass and alumina filler was used to investigate the effects of four different sizes, 13 nm, 0.5, 3, and 39 μm, of a commercially available alumina filler on the resultant densification, crystallization, and dielectric properties. There was definitely a proper range of alumina particle size, which leads to desirable densification and enhanced dielectric properties. The onset temperatures of densificati
The influences of processing parameters such as mineralizer, temperature, and nonstoichiometry on reaction product and morphology were investigated in the hydrothermal synthesis of yttrium iron garnet, Y 3 Fe 5 O 12 (YIG). A cubic YIG phase was synthesized successfully under hydrothermal conditions of 200°C and 6 h from yttrium and iron hydroxide coprecipitates obtained by adjusting the pH to 10.5 using NH 4 OH. The other mineralizer, NaOH, was not effective in forming the garnet phase. Nonstoic
Very thin and highly transparent BiFeO<sub>3</sub> films are attractive owing to their potential application as ferroelectric photovoltaic devices.
