| Langmuir-Blodgett Film Formation of a Fullerene Dicarboxylic Acid Derivative C60(HOOCCHNHCHCOOH) and its Photocurrent Generation. | |
| | |
MedLine Citation:
|
PMID: 9698405 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
The Langmuir films of a fullerene dicarboxylic acid derivative I, C60(HOOCCHNH2CHCOOH)CF3SO3H (FDA), at the air/water interface have been investigated. FDA formed a stable monolayer on pure water when dilute solution (1.04 x 10(-5) mol/L) was used as the spreading solution. The monolayer formation on various subphases was investigated, including solutions containing different monovalent (Na+, Ag+) and divalent (Ca2+, Cd2+, Cu2+) cations. The introduction of these cations makes the monolayer more stable. The limiting molecular area is also dependent on the pH of the subphase. The surface pressure versus area isotherms at different temperature clearly indicate that FDA molecules easily aggregate at high temperature. The monolayer and multilayer LB films of FDA were deposited on quartz and glass substrates from Ca2+, Cd2+, Cu2+, or Cu2+/Phen solution subphase, and their UV-vis and XPS spectra were obtained. The data showed that for Cd2+ and Cu2+/Phen subphase the cation can be transferred onto the substrates together with FDA but not the other two. The photoelectrochemical behavior of FDA on an ITO electrode was investigated, which showed that the photocurrent is cathodic. Oxygen and negative bias are beneficial factors for the photocurrent generation. The external quantum yield is ca. 4%. Copyright 1998 Academic Press. |
| | |
Authors:
|
Huang; Zhao; Gan; Huang; Wu |
Related Documents
:
|
7229625 - Hepatitis b surface antigen (hbsag) in peritoneal fluid of hbsag carriers undergoing pe... 21220145 - Photodegradation of azithromycin in various aqueous systems under simulated and natural... 19683115 - A comparison of the palatability of flavored oral contrasts. 6810445 - Effect of chlorhexidine mouthrinses on concentration of iga in expectorates. 11255185 - Effects of digestion protocols on the isolation and characterization of metal-metal wea... 417725 - The fate of bilirubin-ixalpha glucuronide in cholestasis and during storage in vitro. i... |
Publication Detail:
|
Type: JOURNAL ARTICLE |
Journal Detail:
|
Title: Journal of colloid and interface science Volume: 204 ISSN: 1095-7103 ISO Abbreviation: J Colloid Interface Sci Publication Date: 1998 Aug |
Date Detail:
|
Created Date: 1998-08-11 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0043125 Medline TA: J Colloid Interface Sci Country: - |
Other Details:
|
Languages: ENG Pagination: 277-83 Citation Subset: - |
Affiliation:
|
State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing, 100871, China |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Ultrasonic Spectroscopy Study of Flocculation and Shear-Induced Floc Disruption in Oil-in-Water Emul...
Next Document: Temperature Effect on the Surface Charge Properties of gamma-Al2O3.