박서연 교수

Abstract A wide‐bandgap polymer, (poly[(2,6‐(4,8‐bis(5‐(2‐ethylhexyl)thiophen‐2‐yl)‐benzo[1,2‐ b :4,5‐ b ′]dithiophene))‐ alt ‐(2,5‐(methyl thiophene carboxylate))]) (3MT‐Th), is synthesized to obtain a complementary broad range absorption when harmonized with 3,9‐bis(2‐methylene‐(3‐(1,1‐dicyanomethylene)‐indanone))‐5,5,11,11‐tetrakis(4‐hexylphenyl)‐dithieno[2,3‐ d :2′,3′‐ d ′]‐ s ‐indaceno[1,2‐ b :5,6‐ b ′]dithiophene (ITIC). The synthesized regiorandom 3MT‐Th polymer shows good solubility in n

A new solution-processable polymeric emitter containing non-conjugated cyclohexane units was developed for high-performing TADF-OLEDs.

In this work, three-armed luminogens IAcTr-out and IAcTr-in were synthesized and used as emitters bearing triazine and indenoacridine moieties in thermally activated delayed fluorescence organic light-emitting diodes (OLEDs). These molecules could form a uniform thin film via the solution process and also allowed the subsequent deposition of an electron transporting layer either by vacuum deposition or by an all-solution coating method. Intriguingly, the new luminogens displayed aggregation-indu

Optical coherence tomography (OCT) is a widely used three-dimensional (3D) optical imaging method with many biomedical and non-medical applications. Miniaturization, cost reduction, and increased functionality of OCT systems will be critical for future emerging clinical applications. We present a silicon photonic integrated circuit swept-source OCT (SS-OCT) coherent receiver with dual polarization, dual balanced, in-phase and quadrature (IQ) detection. We demonstrate multiple functional capabili

New electron-acceptor cores are necessary for developing highly efficient bipolar hosts, particularly for blue thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs). Herein, chromenopyrazole (CP) was used for the first time as an electron-acceptor core to design and synthesize two novel blue bipolar hosts, viz., 8-(9H-carbazol-9-yl)-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4(1H)-one (CzCP) and 8-(9H-[3,9′-bicarbazol]-9-yl)-3-methyl-1-phenylchromeno[4,3-c]pyrazol-4(

본 연구에서는 농산부산물인 배추 겉잎의 이용성을 증진시키기 위하여 배추의 불용성 식이섬유인 hemicellulose를 분획한 후 효소 처리하여 수용성 식이섬유를 함유한 가수분해물을 생산하고자 하였다. 이를 위해 다양한 pH, 온도, 기질농도 및 효소농도에서 hemicellulose 분획을 효소 처리한 후 환원당 함량을 측정한 결과, pH 5.0, <TEX>$40^{\circ}C$</TEX>, 효소농도 45 unit (Shearzyme plus), 21 unit Viscozyme L)의 조건으로 가수분해 했을 때 가장 높은 분해율을 나타내었다. 선정된 조건으로 72시간 가수분해하여 수율을 측정한 결과, Shearzyme plus 및 Viscozyme L 처리 시 각각 22.64%와 24.73%의 수율을 보였다. 또한 알코올 불용성 식이섬유의 겔크로마토그래피에 의한 분자량 분포를 확인한 결과, Shearzyme plus 및 Viscozyme L에 의해 생성된 식이섬유는 반응 시간이 증가

The feasibility of a 10 Gbit/s/channel WDM network is experimentally demonstrated using dynamic gain-controlled EDFAs that suppress the surviving channel power transients in themselves without the use of a link control channel. The authors have successfully transmitted one surviving channel without power penalty over 80 km DSF when seven out of eight channels are added/dropped at 1 kHz.

INTRODUCTION: To measure the height, length, and area of the upper tarsal plate in Korean children between 6 months and 13 years of age and analyze growth of the tarsal plate. METHODS: Children who underwent lower epiblepharon correction surgery and congenital nasolacrimal duct obstruction were included. Under general anesthesia, the upper eyelid was everted and a photograph was taken with a reference ruler using a digital camera. Tarsal plate central height, upper border length, lower border le