The Applied Physics Letters accepts the paper Hybrid Heterostructures Based on Aromatic Polyimide and Semi-conductor CdSe Quantum Dots for Photovoltaic Applications coauthored by researchers of LNBE and IPCE

A study on Hybrid Heterostructures Based on Aromatic Polyimide and Semi-conductor CdSe Quantum Dots for Photovoltaic Applications performed jointly by S. Dayneko, I. Martynov, A. Chistyakov (Nano-Heterostructures Group of LNBE), M. Artemyev (Nanochemistry Group of LNBE), I. Nabiev (Leading Scientist of LNBE), A. Tameev, and M. Tedoradze (Frumkin Institute of Physical Chemistry and Electrochemistry, IPCE) of the Russian Academy of Sciences) will be published in the Applied Physics Letters.

The authors have developed a solar cell based on spatial transition between an organic semiconductor (polyimide, PI) and CdSe quantum dots (QDs). Data on the voltage–current characteristics and luminescent properties, as well as the results of transmission electron microscopy, have demonstrated that there is an optimal QD concentration (~60%) at which the photocurrent is the strongest. At lower QD concentrations, the photocurrent is weak because of the low efficiency of electron hopping. If the QD concentration is too high, QDs form clusters, and the efficiency of charge separation at the PI/QD interface is decreased.

The efficiency of the PI solar cell has been compared with that of MEH-PPV, a widely used organic semiconductor. The authors have found that the photoelectric characteristics of the new PI cell are comparable to those of MEH-PPV cells, but the PI cell is more resistant to the damaging effect of oxygen.

The Applied Physics Letters is one of the journals published by the American Institute of Physics. The journal specializes in short communications on the results of important theoretical and experimental research in applied physics. With it impact factor of 3.794, it ranks the 19th among 125 world's leading journals on applied physics.

Contact:

Sergey V. Dayneko, Ph.D. (s.daineko@gmail.com)

Nano-Heterostructures Group, Laboratory of Nano-Bioengineering, Moscow Engineering Physics Institute, 31 Kashirskoe shosse, 115409 Moscow, Russian Federation
http://www.lnbe.mephi.ru

 
 
 
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