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本文研究了酞菁/硫化镉和酞菁酮/硫化镉异质结的光伏效应,在强度为7mW/cm~2的光照下,开路龟压为0.42V,短路电流为37μA/cm~2,光电转换效率为0.15%。p~(-n)结的质量因子受光照的影响。光谱响应特性研究表明,只有在p~(-n)结区加光生载流子的扩散长度范围内吸收的光才能产生光伏效应;工业纯的酞菁中可能存在着平均深度约为1.6 eV的深杂质陷阱。进一步研究将可:能使这种异质结发展成为光敏器件及太阳能电池。
In this paper, the photovoltaic effect of phthalocyanine / cadmium sulfide and phthalocyanine / cadmium sulfide heterojunction was studied. Under the light intensity of 7mW / cm ~ 2, the turtle pressure was 0.42V, the short circuit current was 37μA / cm ~ Photoelectric conversion efficiency of 0.15%. The quality factor of p ~ (-n) junction is affected by illumination. The study of spectral response shows that only the light absorbed in the diffusion region of p ~ (-n) junction plus photogenerated carriers can produce photovoltaic effect. There may exist an average depth of about 1.6 eV in industrial pure phthalocyanines Deep impurity trap. Further research will: make this heterojunction develop into a light-sensitive device and a solar cell.