화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터)
권호 43권 2호
발표분야 분자전자 부문위원회 II
제목 Flexible and Conductive Electrodes Using Room-Temperature Metallic Fusion of Multilayered Silver Nanoparticles
초록 Various organic ligand-stabilized Ag nanomaterials have been used to prepare flexible electrodes, but the obtained electrodes exhibited a restricted conductivity due to the remaining ligands, requiring subsequent sintering processes to improve conductivity. Herein, we report a totally different method of preparing flexible electrodes using the room-temperature metallic fusion layer-by-layer assembly. The synthesized tetraoctylammonium thiosulfate (TOAS) stabilized-Ag NPs were deposited through a perfect ligand exchange between bulky TOAS ligands and small molecules, tris(2-aminoethyl)amine (TAA). The small TAA linkers bridging neighboring Ag NPs dramatically shortened the interparticle distance, inducing metallic fusion at room temperature. The prepared electrodes showed an extremely high electrical conductivity of 1.60 × 105 S cm−1 (bulk Ag ~ 6.30 × 105 S cm−1). Moreover, the insulating papers can be transformed into metallic papers with large surface area through our approach.
저자 송용권, 조진한
소속 고려대
키워드 Flexible/Paper Electrodes; Silver Nanomaterials; Perfect ligand-exchange reaction; Layer-by-Layer Assembly
E-Mail jinhan71@korea.ac.kr