Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Hyojung Cha"'
Autor:
Sanghyeok An, Kyeong‐Jun Jeong, Syed Zahid Hassan, Gayoung Ham, Seonghyeon Kang, Juhyeok Lee, Hyeonjong Ma, Jieun Kwon, Sang Young Jeong, Jiwoong Yang, Han Young Woo, Han‐Hee Cho, Hyojung Cha, Chang Yun Son, Dae Sung Chung
Publikováno v:
Advanced Science, Vol 11, Iss 28, Pp n/a-n/a (2024)
Abstract A universal approach for enhancing water affinity in polymer photocatalysts by covalently attaching hydrophilic photocrosslinkers to polymer chains is presented. A series of bisdiazirine photocrosslinkers, each comprising bisdiazirine photop
Externí odkaz:
https://doaj.org/article/a357de27cc9040dcaf49497384013e3d
Publikováno v:
Materials, Vol 16, Iss 16, p 5712 (2023)
In this study, we present a comprehensive investigation into the charge generation mechanism in bulk-heterojunction organic solar cells employing non-fullerene acceptors (NFAs) both with and without the presence of processing additives. While photovo
Externí odkaz:
https://doaj.org/article/f393476d719b4006a11993f71159df39
Autor:
Hyojung Cha
Publikováno v:
Materials, Vol 16, Iss 2, p 737 (2023)
Non-fullerene acceptors have recently attracted tremendous interest due to their potential as alternatives to fullerene derivatives in bulk-heterojunction solar cells. Nevertheless, physical understanding of charge carrier generation and transfer mec
Externí odkaz:
https://doaj.org/article/847da490d98b48348fb289fa6eded2bb
Autor:
Jiaying Wu, Joel Luke, Harrison Ka Hin Lee, Pabitra Shakya Tuladhar, Hyojung Cha, Soo-Young Jang, Wing Chung Tsoi, Martin Heeney, Hongkyu Kang, Kwanghee Lee, Thomas Kirchartz, Ji-Seon Kim, James R. Durrant
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
The power conversion efficiencies of most organic solar cells roll off quickly with thickness more than 100 nm. Here, Wu et al. show that avoiding excessive charge accumulation in the intra-bandgap tail states is vital to maintain the photocurrent ge
Externí odkaz:
https://doaj.org/article/2930ef0faeb4484787b0698e480da059
Publikováno v:
Molecular Crystals and Liquid Crystals. 733:76-85
Autor:
Qiao He, Aniruddha Basu, Hyojung Cha, Matyas Daboczi, Julianna Panidi, Luxi Tan, Xiantao Hu, Chi Cheng Huang, Bowen Ding, Andrew J. P. White, Ji‐Seon Kim, James R. Durrant, Thomas D. Anthopoulos, Martin Heeney
Publikováno v:
Advanced materials (Deerfield Beach, Fla.).
Narrowband photoresponsive molecules are highly coveted in high-resolution imaging, sensing and monochromatic photodetection, especially those extending into the near-infrared (NIR) spectral range. Here we report a new class of J-aggregating material
Autor:
Seongmin Park, Young Ho Park, G. Murali, Seongeun Lee, Jiwon Yeon, Insik In, James R. Durrant, Tae Kyu An, Jeevan Kumar Reddy Modigunta, Sung Young Park, Hwiyoung Lee, Hyojung Cha, Hyejin Kim
Publikováno v:
ACS Applied Materials & Interfaces. 13:34648-34657
Limited light absorption beyond the UV region and rapid photocarrier recombination are critical impediments for the improved photocatalytic performance of carbon quantum dots (CQDs) under visible-light irradiation. Herein, we demonstrate single-step
Autor:
Jiaying Wu, Hyojung Cha
Publikováno v:
Joule. 5:1322-1325
Understanding the fundamental origin of morphological degradation in non-fullerene acceptor-based organic solar cells is challenging. In the April 2021 issue of Nature Materials, Ghasemi et al. reveal that the most thermodynamically unstable and low-
Autor:
Sukwon Hong, Hyojung Cha, Joel Luke, Huifeng Yao, Katherine Stewart, Kwanghee Lee, Minkyu Kyeong, Matyas Daboczi, Jinho Lee, Ji-Seon Kim, James R. Durrant
Publikováno v:
Journal of Materials Chemistry A. 9:13506-13514
Amine-containing polyelectrolytes such as polyethyleneimine (PEI) are commonly used as cathode interfacial materials (CIMs); however, they are rarely found in non-fullerene acceptor (NFA) organic solar cells due to undesirable chemical reactions betw
Publikováno v:
Macromolecular Research. 28:820-825
Here we report a polymeric semiconductor (ODATT) comprising alkoxy anthracene (ODA) and thienothiophene (TT) polymerized by stille coupling reaction with the Pd catalyst. The optical properties of the polymer: PC71BM blend films are used by the UV-Vi