Korea University · Engineering
Jae Won Shim 교수의 연구실은 유기 태양전지와 2차원 재료를 중심으로 한 에너지 변환 및 저장 기술을 연구하고 있습니다. 특히 실내 조명 환경에서 높은 효율을 발휘하는 유기 태양전지의 재료 설계 및 성능 최적화, MXene 계열의 2차원 전도성 재료의 응용에 중점을 두고 있습니다. 또한 투명하고 도핑되지 않은 전극을 활용한 고성능 유기 전자소자 및 리트로스위칭 메모리 기술의 개발도 진행 중입니다.
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Abstract The unique electro‐optical features of organic photovoltaics (OPVs) have led to their use in applications that focus on indoor energy harvesters. Various adoptable photoactive materials with distinct spectral absorption windows offer enormous potential for their use under various indoor light sources. An in‐depth study on the performance optimization of indoor OPVs is conducted using various photoactive materials with different spectral absorption ranges. Among the materials, the fluori
Abstract Recently, indoor organic photovoltaics (OPVs) has attracted substantial research attention, due to the emergence of self‐powered electronic devices for Internet‐of‐Things (IoT) applications. This progress report discusses recent developments in indoor OPVs, focusing on the strategic role of synergistic parasitic resistance in suppressing the leakage current to achieve high indoor efficiencies. Moreover, an underexplored area is presented, namely the impact of optical modulation on enhan
The 2D transition metal carbides/nitrides (2D MXenes) are a versatile class of 2D materials for photovoltaic (PV) systems. The numerous advantages of MXenes, including their excellent metallic conductivity, high optical transmittance, solution processability, tunable work-function, and hydrophilicity, make them suitable for deployment in PV technology. This comprehensive review focuses on the synthesis methodologies and properties of MXenes and MXene-based materials for PV systems. Titanium carb
OPVs with undoped ZnO electrodes showed excellent indoor performance with an efficiency of 9.5 ± 0.3% under an LED.
Resistive switching memory (ReRAM) has attracted much attention in recent times owing to its fast switching, simple structure, and non-volatility. Flexible and transparent electronic devices have also attracted considerable attention. We therefore fabricated an Al2O3-based ReRAM with transparent indium-zinc-oxide (IZO) electrodes on a flexible substrate. The device transmittance was found to be higher than 80% in the visible region (400-800 nm). Bended states (radius = 10 mm) of the device also
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