Hybrid heterostructures based on aromatic polyimide and semiconductor CdSe quantum dots for photovoltaic applications. Applied Physics Letters Volume 103, Issue 6, 5 August 2013, Article number 063302

14 сентября 2018
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Контактные данные автора публикации Dayneko, S.a, Tameev, A.b, Tedoradze, M.b, Martynov, I.a, Artemyev, M.ac, Nabiev, I.ad , Chistyakov, A.a a Laboratory of Nano-Bioengineering, National Research Nuclear University MEPhI, 31 Kashirskoe sh., 115409 Moscow, Russian Federation b Fr
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Аннотация

A nanohybrid photoactive material based on aromatic polyimide (PI) doped with CdSe quantum dots (QDs) has been developed to be used in photovoltaic solar cells. The solar cell is based on a heterostructure of an ITO electrode covered with a layer of Cu-phthalocyanine and a layer of a PI-QD composite. The photovoltaic properties of the CuPc/PI:CdSe hybrid heterostructure at various QD concentrations in the PI matrix have been studied. Luminescent and transmission electron microscopy analyses have shown that the optimal QD mass concentration is 60%. The efficiency of the solar cell based on optimized PI:CdSe structures approaches those for the structures based on conventional MEH-PPV organic semiconductor. Moreover, the photovoltaic characteristics of the solar cell remain stable in the air for a long time (120 h). This is expected to considerably simplify the technology of manufacturing these hybrid solar cells. The mechanisms of the excitation and charge transfer from QDs to the organic semiconductors and influence of QDs on the efficiency of solar energy conversion to electricity are discussed.
Indexed keywords
Aromatic polyimides; Hybrid solar cells; Photoactive materials; Photovoltaic applications; Photovoltaic characteristics; Photovoltaic property; Photovoltaic solar cells; Transmission electron
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