NANOSTRUCTURAL SIO2/ZnO/Si FILMS FOR SOLAR CELLS
Transparent (transmission is more than 95%) coatings for solar cells are synthetized by sil-gel method. Integration of ZnO and Si can offer possibilities for real combination of unique functional capacities of these materials and silicon technology, in particular, in the process of production of solar cells.
Application
Application of two-layer ZnO / SiO2 films increases efficiency coefficient my means of broadening of performance wavelength range of solar cells. It is possible to use it in electronics – as a means of active medium for solar cells, piezoelectronic devices, sensors, photoconverters, emitters, in spintronics and optoelectronics.
Advantages
Simplicity of the devices applied, their efficient performance, ecological purity, flexibility of the technology, absence of negative impact on human and the environment.
Characteristics of films
SiO2/ZnO/Si-structures are synthetized by sol-gel method using nitrate, chlorides or zinc acetate as initial materials. Application of functional layers based on ZnO films in solar elements gives an opportunity to combine it function of transparent transmitting electrode with retransmission providing improvement of parameters of solar cells.
| The characteristics of the films | The value indicators |
| Temperature of formation, °С | 300-530 |
| Resistivity, Оm*cm | from 10-3 to 10-6 |
| Transmission, % | 80-97 % |
| Film thickness | More than 300 |
Vladimir Gaishun,
Head of Advanced Materials Research Laboratory,
Candidate of Sciences (physics and mathematics), docent
tel. (+375 232) 50 38 22, fax (+375 232) 50 38 13,
e-mail: vgaishun@gsu.by, http:// www.pnil.gsu.by, http://nis.gsu.by
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