Search Results - "Cho, Eunkyung"

Organic Neutral Radical Emitters: Impact of Chemical Substitution and Electronic-State Hybridization on the Luminescence Properties by Cho, Eunkyung, Coropceanu, Veaceslav, Brédas, Jean-Luc

“…Neutral donor–acceptor (D–A•) organic radicals have recently attracted a great deal of attention as promising luminescent materials due to their strong doublet…”
Get full text

Effective Passivation of Exfoliated Black Phosphorus Transistors against Ambient Degradation by Wood, Joshua D, Wells, Spencer A, Jariwala, Deep, Chen, Kan-Sheng, Cho, EunKyung, Sangwan, Vinod K, Liu, Xiaolong, Lauhon, Lincoln J, Marks, Tobin J, Hersam, Mark C

“…Unencapsulated, exfoliated black phosphorus (BP) flakes are found to chemically degrade upon exposure to ambient conditions. Atomic force microscopy,…”
Get full text

Ion-modulated radical doping of spiro-OMeTAD for more efficient and stable perovskite solar cells by Zhang, Tiankai, Wang, Feng, Kim, Hak-Beom, Choi, In-Woo, Wang, Chuanfei, Cho, Eunkyung, Konefal, Rafal, Puttisong, Yuttapoom, Terado, Kosuke, Kobera, Libor, Chen, Mengyun, Yang, Mei, Bai, Sai, Yang, Bowen, Suo, Jiajia, Yang, Shih-Chi, Liu, Xianjie, Fu, Fan, Yoshida, Hiroyuki, Chen, Weimin M., Brus, Jiri, Coropceanu, Veaceslav, Hagfeldt, Anders, Brédas, Jean-Luc, Fahlman, Mats, Kim, Dong Suk, Hu, Zhangjun, Gao, Feng

“…Record power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) have been obtained with the organic hole transporter 2,2′,7,7′-tetrakis( N , N…”
Get full text

In Situ Thermal Decomposition of Exfoliated Two-Dimensional Black Phosphorus by Liu, Xiaolong, Wood, Joshua D, Chen, Kan-Sheng, Cho, EunKyung, Hersam, Mark C

“…With a semiconducting band gap and high charge carrier mobility, two-dimensional (2D) black phosphorus (BP)often referred to as phosphoreneholds significant…”
Get full text

Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis by Kim, Nam-Koo, Min, Young Hwan, Noh, Seokhwan, Cho, Eunkyung, Jeong, Gitaeg, Joo, Minho, Ahn, Seh-Won, Lee, Jeong Soo, Kim, Seongtak, Ihm, Kyuwook, Ahn, Hyungju, Kang, Yoonmook, Lee, Hae-Seok, Kim, Donghwan

“…In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI 3…”
Get full text

Electronic Structure of Multicomponent Organic Molecular Materials: Evaluation of Range-Separated Hybrid Functionals by Cho, Eunkyung, Coropceanu, Veaceslav, Brédas, Jean-Luc

“…Range-separated hybrid (RSH) functionals have become a tool of choice to study the and -molecular electronic states in organic materials. These functionals…”
Get full text

The Role of Intermolecular Interactions on the Performance of Organic Thermally Activated Delayed Fluorescence (TADF) Materials by Cho, Eunkyung, Hong, Minki, Coropceanu, Veaceslav, Brédas, Jean‐Luc

“…In most instances, thermally activated delayed fluorescence (TADF) emitters are incorporated into a suitable host matrix at low doping concentration in order…”
Get full text

Egg-Shell-Type MgAl2O4 Pellet Catalyst for Steam Methane Reforming Reaction Activity: Effect of Pellet Preparation Temperature by Yeon Jeong Yu, Eunkyung Cho, Chang Hyun Ko

“…A pellet catalyst was prepared to be used in a large-scale steam methane reformer. Hydrotalcite powder (MG30) was used as a precursor to prepare MgAl2O4 pellet…”
Get full text

On the Mechanism of the Inverse Vulcanization of Elemental Sulfur: Structural Characterization of Poly(sulfur-random-(1,3-diisopropenylbenzene)) by Bao, Jianhua, Martin, Kaitlyn P., Cho, Eunkyung, Kang, Kyung-Seok, Glass, Richard S., Coropceanu, Veaceslav, Bredas, Jean-Luc, Parker, Wallace O’Neil, Njardarson, Jon T., Pyun, Jeffrey

“…Organosulfur polymers, such as those derived from elemental sulfur, are an important new class of macromolecules that have recently emerged via the inverse…”
Get full text

Limiting factors for charge generation in low-offset fullerene-based organic solar cells by Jungbluth, Anna, Cho, Eunkyung, Privitera, Alberto, Yallum, Kaila M., Kaienburg, Pascal, Lauritzen, Andreas E., Derrien, Thomas, Kesava, Sameer V., Habib, Irfan, Pratik, Saied Md, Banerji, Natalie, Brédas, Jean-Luc, Coropceanu, Veaceslav, Riede, Moritz

“…Free charge generation after photoexcitation of donor or acceptor molecules in organic solar cells generally proceeds via (1) formation of charge transfer…”
Get full text

Characterization of Charge-Carrier Transport in Semicrystalline Polymers: Electronic Couplings, Site Energies, and Charge-Carrier Dynamics in Poly(bithiophene-alt-thienothiophene) [PBTTT] by Poelking, Carl, Cho, Eunkyung, Malafeev, Alexander, Ivanov, Viktor, Kremer, Kurt, Risko, Chad, Brédas, Jean-Luc, Andrienko, Denis

“…We establish a link between the microscopic ordering and the charge-transport parameters for a highly crystalline polymeric organic semiconductor,…”
Get full text

Three-Dimensional Packing Structure and Electronic Properties of Biaxially Oriented Poly(2,5-bis(3-alkylthiophene-2-yl)thieno[3,2-b]thiophene) Films by Cho, Eunkyung, Risko, Chad, Kim, Dongwook, Gysel, Roman, Cates, Nichole, Breiby, Dag W., McGehee, Michael D., Toney, Michael F., Kline, R. Joseph, Bredas, Jean-Luc

“…We use a systematic approach that combines experimental X-ray diffraction (XRD) and computational modeling based on molecular mechanics and two-dimensional XRD…”
Get full text

Use of X-Ray Diffraction, Molecular Simulations, and Spectroscopy to Determine the Molecular Packing in a Polymer-Fullerene Bimolecular Crystal by Miller, Nichole Cates, Cho, Eunkyung, Junk, Matthias J. N., Gysel, Roman, Risko, Chad, Kim, Dongwook, Sweetnam, Sean, Miller, Chad E., Richter, Lee J., Kline, R. Joseph, Heeney, Martin, McCulloch, Iain, Amassian, Aram, Acevedo-Feliz, Daniel, Knox, Christopher, Hansen, Michael Ryan, Dudenko, Dmytro, Chmelka, Bradley F., Toney, Michael F., Brédas, Jean-Luc, McGehee, Michael D.

“…The molecular packing in a polymer: fullerene bimolecular crystal is determined using X‐ray diffraction (XRD), molecular mechanics (MM) and molecular dynamics…”
Get full text

Factors Governing Intercalation of Fullerenes and Other Small Molecules Between the Side Chains of Semiconducting Polymers Used in Solar Cells by Miller, Nichole Cates, Cho, Eunkyung, Gysel, Roman, Risko, Chad, Coropceanu, Veaceslav, Miller, Chad E., Sweetnam, Sean, Sellinger, Alan, Heeney, Martin, McCulloch, Iain, Brédas, Jean-Luc, Toney, Michael F., McGehee, Michael D.

“…While recent reports have established significant miscibility in polymer:fullerene blends used in organic solar cells, little is actually known about why…”
Get full text

Efficient Synthesis of Nickel-Molybdenum/USY-Zeolite Catalyst for Eliminating Impurities (N, S, and Cl) in the Waste Plastic Pyrolysis Oil: Dispersion Effect of Active Sites by Surfactant-Assisted Melt-Infiltration by Eui Hyun Cho, Ki-Duk Kim, Byung Sun Yoon, Eunkyung Cho, Yeon Jeong Yu, Tuan Ngoc Phan, Sang-Goo Jeon, Chang Hyun Ko

“…The upgrading of waste plastic pyrolysis oil (WPPO) through hydrotreating (HDT) is crucial for transforming plastic waste into chemical feedstock. The…”
Get full text

In Situ Spectroscopic and Computational Studies on a MnO2–CuO Catalyst for Use in Volatile Organic Compound Decomposition by Kim, Jungpil, Min, Young Hwan, Lee, Nodo, Cho, Eunkyung, Kim, Kye Yeop, Jeong, Gitaeg, Moon, Seung Kyu, Joo, Minho, Kim, Dong Baek, Kim, Jun, Kim, Sang-Yoon, Kim, Yong, Oh, Jonghyun, Sato, Satoshi

“…In situ near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and density functional theory calculations were conducted to demonstrate the…”
Get full text

Gene expression profiling in lung tissues from rats exposed to formaldehyde by SUL, Donggeun, KIM, Hyunsook, OH, Eunha, PHARK, Sohee, CHO, Eunkyung, CHOI, Seonyoung, KANG, Hyung-Sik, KIM, Eun-Mi, HWANG, Kwang-Woo, JUNG, Woon-Won

“…Formaldehyde is a ubiquitous toxic organic compound recently classified as a carcinogen by the International Agency for Research on Cancer and one of the major…”
Get full text

Spherical Macroporous Carbon Nanotube Particles with Ultrahigh Sulfur Loading for Lithium–Sulfur Battery Cathodes by Gueon, Donghee, Hwang, Jeong Tae, Yang, Seung Bo, Cho, Eunkyung, Sohn, Kwonnam, Yang, Doo-Kyung, Moon, Jun Hyuk

“…A carbon host capable of effective and uniform sulfur loading is the key for lithium–sulfur batteries (LSBs). Despite the application of porous carbon…”
Get full text

Preparation of Ni-based egg-shell-type catalyst on cylinder-shaped alumina pellets and its application for hydrogen production via steam methane reforming by Kim, Youngji, Cho, Eunkyung, Ko, Chang Hyun

“…Nickel-based ‘egg-shell-type’ catalysts were prepared using cylinder-shaped alumina pellets as supports. In the egg-shell-type catalysts, nickel was…”
Get full text

Sensitive near-infrared circularly polarized light detection via non-fullerene acceptor blends by Wan, Li, Zhang, Rui, Cho, Eunkyung, Li, Hongxiang, Coropceanu, Veaceslav, Brédas, Jean-Luc, Gao, Feng

“…Circularly polarized light (CPL) is widely used for various applications in sensing and imaging 1 – 3 . An ongoing challenge is to realize high-quality CPL…”
Get full text