Youngseok Kim

1 month ago | science.org | Barbara von Hippel |Jinke Chang |Elena Emili |Joost Kimpel |Youngseok Kim |Hannes Schomaker | +6 more

AbstractConjugated polymers are widely studied for application areas ranging from energy technology to wearable electronics and bioelectronics. To develop a truly sustainable technology, environmentally benign synthesis is essential. Here, the open-flask synthesis of a multitude of conjugated polymers at room temperature by ambient direct arylation polymerization (ADAP) is demonstrated.

Oct 31, 2024 | fotos.europapress.es | Youngseok Kim

Código: 6314591 Fecha: 31/10/2024 Dimensiones: 771 x 445 (0.06MB) Fotos del Tema: 1 Pie de Foto: El nuevo hilo de seda modificado muestra propiedades prometedoras para convertir los textiles en generadores de electricidad. Aquí, un trozo de tela con el nuevo hilo.

Oct 2, 2024 | globalcompetitionreview.com | Ryan Kang |Hwijin Choi |Youngseok Kim

IntroductionThere has been active discussion recently in South Korea on how to properly regulate the digital market. So far, the Korea Fair Trade Commission (KFTC), the country’s competition regulator, has been regulating the digital market by enforcing existing regulations, such as the Monopoly Regulation and Fair Trade Act (MRFTA), and issuing relevant guidelines.

Sep 1, 2024 | nature.com | Youngseok Kim

AbstractA method for the characterization of organic electrochemical transistors (OECTs) based on small signal analysis is presented that allows to determine the electronic mobility as a function of continuous gate potential using a standard two-channel AC potentiostat. Vector analysis in the frequency domain allows to exclude parasitic components in both ionic and electronic conduction regardless of film thickness, thus resulting in a standard deviation as low as 4%.

May 15, 2024 | link.aps.org | Youngseok Kim |IBM Quantum |Yorktown Heights

Abstract Chiral edge states in a quantum Hall effect are the paradigmatic example of a quasiparticle with chirality. In even space-time dimensions, the Nielsen-Ninomiya theorem strictly forbids chiral states in physical isolation. The exceptions to this theorem only occur in the presence of nonlocality, non-Hermiticity, or by embedding the system at the boundary of the higher-dimensional bulk.