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方酸菁染料业经证明具有光谱增感作用,但迄今未见其作为照相材料应用的报道.1973年法国Siegfried等将其用于巨脉冲红宝石激光的无源切换;最近Morel等又研究了它们在太阳能电池中的应用.作者合成了八个方酸菁染料,并对它们的照相性能和光电转换特性作了初步研究;发现其中的个别化合物不但具有良好的光谱增感作用,而且与照相工业中常用的染料“1833”相比,衰退也比较慢;部分化合物还表现出相当高的光电转换效率. 作者曾报道方酸的合成.本文介绍另一种方法,即以醋酸钠-醋酸环化1,1,3-三氯-2,
Squaraine cyanine dye has been shown to have spectral sensitization, but so far it has not been reported as a photographic material application.France Siegfried in France in 1973 for its passive switching of giant pulsed ruby laser; Morel recently studied them in Solar cells. The authors synthesized eight squarylium dyes, and their photographic properties and the photoelectric conversion properties of a preliminary study; found that some of the individual compounds not only have good spectral sensitization, but also with the photographic industry Compared with the common dye “1833”, the decline is relatively slow; some compounds also show a very high photoelectric conversion efficiency. The authors have reported the synthesis of squaric acid.This article describes another method, namely the sodium acetate - acetic acid cyclization 1 , 1,3-trichloro-2,