Kim, Yun-Ho Cai, Gangri Lee, Wonjoo Hyung, Kyung-Hee Cho, Byung Won Lee, Joong Ki Han, Sung-Hwan 2024-01-20T22:04:08Z 2024-01-20T22:04:08Z 2021-09-03 2009-01 1567-1739 https://pubs.kist.re.kr/handle/201004/132851 We report the observation of the ionic charge-selective electron transfer on the polyelectrolytes-modified indium-tin oxide (ITO) electrode. The polyelectrolytes multilayers are formed on ITO by a layer-by-layer deposition of polyethyleneimine (PEI) and polyacrylic acid (PAA). Indium oxide of the ITO surface provides adsorption sites to the amine functional groups to form stable polyelectrolyte layers on ITO. Then, PAA layers and MUltilayers of both polyelectrolytes are Successfully constructed on ITO. The charge of the top layers controls the electron transfer from the electrode to the redox species in solution. The PEI-modified electrodes at the top layers have positive charges and good affinity toward negatively charged complex, Fe(CN)(6)(3-). Whereas, the PAA-modified electrodes at its top layers has negative charges and demonstrates good affinity toward positively charged complex, Ru(NH(3))(6)(3-). The coulombic charge interaction critically controls the electron transfer at the liquid-solid interface, (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV CARBON NANOTUBE SURFACE FILMS MONOLAYERS ELECTROLUMINESCENCE PERMSELECTIVITY ACCEPTOR DEVICES ACID Ionic charge-selective electron transfer on self-assembled polyelectrolyte-modified ITO electrode Article 10.1016/j.cap.2008.08.045 1 CURRENT APPLIED PHYSICS, v.9, pp.S65 - S68 CURRENT APPLIED PHYSICS 9 S65 S68 scie scopus kci ART001326130 000262500500019 2-s2.0-55649124092 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article CARBON NANOTUBE SURFACE FILMS MONOLAYERS ELECTROLUMINESCENCE PERMSELECTIVITY ACCEPTOR DEVICES ACID Polyelectrolyte multilayer Self-assembly Charge selectivity Surface morphology Redox reaction