Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Jong Il Park

Sang Yoon Lee

Eun Jeong Jeong

Kook Min Han

Jin Woo Cheon

Bang Lin Lee

Soon Taik Hwang

Seok Mo Chang

Sung Nam Cho

Kyung Bok Lee

Disclosed herein are an alternating copolymer of phenylene vinylene and biarylene vinylene, a preparation method thereof, and an organic thin film transistor including the same. The organic thin film transistor maintains low off-state leakage current and realizes a high on/off current ratio and high charge mobility because the organic active layer thereof is formed of an alternating copolymer of phenylene vinylene and biarylene vinylene.

Alternating copolymers of phenylene vinylene and biarylene vinylene, preparation method thereof, and organic thin film transistor comprising the same

A heteroacene compound includes a di-thieno-benzo-thieno-thiophene derivative, in which all six rings may be fused together, an organic thin film including the same, and an electronic device that includes the thin film as a carrier transport layer. The compound of example embodiments may have a compact planar structure to thus realize improved solvent solubility and processability. When the compound is applied to electronic devices, a deposition process or a room-temperature solution process may be applied, and as well, intermolecular packing and stacking may be efficiently realized, resulting in improved electrical properties, including increased charge mobility.

Heteroacene compound, organic thin film comprising the compound, and electronic device comprising the thin film

Disclosed are a metallic nanoparticle cluster ink and a method for forming a conductive metal pattern using the cluster ink. The metallic nanoparticle cluster ink comprises colloidal metallic nanoparticles and a bifunctional compound. The conductive metal pattern is formed by forming a metallic nanoparticle pattern on a substrate using a mold made from PDMS (poly(dimethylsiloxane) polymer as a stamp, and heat-treating the substrate. Micrometer-sized conductive metal patterns can be easily formed on various substrates in a simple and inexpensive manner without the use of costly systems, thereby being very useful in various industrial fields.

Metallic nanoparticle cluster ink and method for forming metal pattern using the same

Disclosed is a method for producing core-shell type metallic nanoparticles involving (i) providing a dispersion of a first metal as nanoparticles in an appropriate organic solvent; (ii) providing a solution of a metallic precursor containing a second metal in an appropriate organic solvent, in which the second metal has a reduction potential higher than that of the first metal; and (iii) combining the dispersion from (i) and the solution from (ii) together to carry out the transmetalation reaction of the first and second metals, thereby forming core-shell type metallic nanoparticles.

Method for synthesis of core-shell type and solid solution alloy type metallic nanoparticles via transmetalation reactions and applications of same

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Yongin-si, South Korea

Jong Il Park