Structure and thickness dependence of p–n heterojunction solar cells based on copper phthalocyanine and perylene pigments
Structure and thickness dependence of p–n heterojunction solar cells based on copper phthalocyanine and perylene pigments
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DOI：
10.1088/0022-3727/37/10/004
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发表时间：
2004-05
期刊：
影响因子：
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通讯作者：
W. J. Hu;M. Matsumura
中科院分区：
文献类型：
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作者：
W. J. Hu;M. Matsumura
由铜酞菁（CuPc）和苝四甲酸二苯并咪唑（PV）组成的p-n结太阳能电池表现出更强的结构和厚度依赖性。 ITO/CuPc/PV/Ag结构的器件比ITO/PV/CuPc/Au结构的器件具有更好的性能。原因是PV的吸收峰正好位于CuPc的吸收窗口内，这使得CuPc/PV结构比PV/CuPc结构具有更高的吸收效率。事实上，p-n界面附近的光吸收决定了太阳能电池的所有性能，这是器件的活性中心。活性中心的长度以 24 nm 区域内的 p-n 界面为中心。厚度依赖性进一步增强了结论。此外，在不同的结构中，由于太阳能电池活性中心吸收的光子的差异，厚度依赖性遵循不同的规则。
The p–n junction solar cells consisting of copper phthalocyanine (CuPc) and perylenetetra caboxylic-acid dibenzimidazole (PV) show stronger structure and thickness dependence. The devices with the structure of ITO/CuPc/PV/Ag possess better properties than devices with the structure ITO/PV/CuPc/Au. The reason is because the absorption peak of PV is located just in the absorption window of CuPc, which makes the CuPc/PV structures have higher absorption efficiency than the PV/CuPc structures. It is a fact that the photo-absorbance near the p–n interface determines all the properties of the solar cell, which is the active centre of the devices. The length of the active centre is centred in the p–n interface within a 24 nm region. The thickness dependence further enhanced the conclusions. Moreover, in different structures the thickness dependence follows different rules because of the difference in absorbed photons in the active centre of the solar cells.