Energy Levels and Charge Carrier Generation in Crystalline Chlorophyll-a Studied by Photoconduction and Fluorescence

概要

論文の詳細を見る
Photoconduction and fluorescence were studied in solid state chlorophyll-a(Chi-a) films which were composed of microcrystals of Chi-a-water adduct. Thetransient photocurrent, rising without time delay for an exciting flash, decayedwith a second order reaction. Two types of response were distinguished in theaction spectrum of photocurrent on continuous illumination : One of them corre-sronded to the absorr>tion of Chi-a molecular cr>'stal, and the other, arrearinsat longer wavelength (820 urn, 1.51 eV), was ascribed? to the direct transition toa conduction band below the first excited singlet state. The thermal band gap of1.48f0.O2 eV was obtained from the activation energy for dark conductivity. Thefluorescence of crystalline Chi-a was observed at 794 nm.
社団法人日本物理学会の論文
1977-01-15