Optimal deposition condition of chlorophyll a Langmuir-Blodgett film

被引：8

作者：

Nam, YS ^{[1
]}

Kim, JM ^{[1
]}

Choi, JW ^{[1
]}

Lee, WH ^{[1
]}

机构：

[1] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2004年 / 24卷 / 1-2期

关键词：

chlorophyll a; Langmuir-Blodgett (LB); pi-a isotherm; STM;

D O I：

10.1016/j.msec.2003.09.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optimal deposition condition of chlorophyll a (Chl a) Langmuir-Blodgett (LB) film were investigated based on pi-a isotherms, absorption spectrum and scanning tunneling microscopy (STM) observation. The pi-a isotherms of Chl a LB film at various air temperatures and subphase pHs were obtained. Optimum temperature and pH for dense packing of Chl a LB layers are 25 degreesC and 7.0, respectively. The formation of J- and H-aggregations of the ordered chlorophyll a molecules was confirmed by absorption spectrum measurements. The well-ordered structure of Chl a LB layer was observed by STM. Thus, the densely packed Chl a LB layer could be fabricated by the proposed optimal deposition condition. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：35 / 38

页数：4

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