影响富勒烯(配合物)/砷化镓复合电极光电性能因素研究

THE INFLUENCE FACTORS OF PHOTOVOLTAIC EFFECT FOR THE FULLERENE(COMPLEX)/GaAs HETEROJUNCTION ELECTRODE

在光电化学电池中测定了 C60 及 C60 配合物的光伏效应 ,研究了影响富勒烯 (配合物 ) /砷化镓异质结电极光伏效应的因素。结果表明 :1.富勒烯 (配合物 )与 Ga As组成 ( n+n)异质结电极后具有更优良的光电转化性能。 2 .I-3 / I-是较好的介质电对。 3.富勒烯 (配合物 )厚度在 0 .5— 2μm时的光伏效应最大。 4 .富勒烯配合物比单纯富勒烯具有更大的光伏效应值。 5.对不同金属有机基团的配合物而言 ,光伏效应由大到小有以下变化规律 :C60 Pd( PPh3) 2 >C60 Pt( PPh3) 2 >C60 Pt[P( n-C4 H9) 3]2 。 6.对 C60 [Pt( PPh3) 2 ]n 而言 ,随着 n值增大 。

The photovoltaic effect of C 60 and its complex was measured in the photoelectrochemical cell,the influence factors of photovoltaic effect of the fullerene(complex)/GaAs heterojunction electrode was studied.The results have indicated:1.The photovoltaic effect of (n+n) heterojunction electrode fomed by fullerene(complex)and GaAs is supper.2.I - 3/I -is a kinds of better redox couple.The couple of BQ/H 2Q isnt fit for fullerene(complex)/GaAs electrode.3.The photovoltaic performance of fullerene(complex)/GaAs electrode at 1μm for thickness of fullerene(complex)film is the best.4.The photovolatic property of fullerene complex is better than that of fullerene.5.As far as fullerene complex with different organno metal group is concerned,the ΔV in proper order is as follows:C 60 Pd(PPh 3) 2>C 60 Pt(PPh 3) 2>C 60 Pt[P(n-C 4H 9) 3] 2.6.For C 60 [Pt(PPh 3) 2] n,the photovoltaic effect increase withn increasing.