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Home Moldova Technologies Optical, photoelectrical and structural analysis of CU2ZNSN (SE1-XSX)4 and WXMO1-XS2 for photovoltaic applications

Optical, photoelectrical and structural analysis of CU2ZNSN (SE1-XSX)4 and WXMO1-XS2 for photovoltaic applications

Description

One of the major problems in Moldova is a lack of conventional energy sources. Nearly 98% of the total energy consumption in the Republic of Moldova comes from imported fuel. This challenge can partly be solved through the use of renewable energy, namely photovoltaic conversion of solar energy. The Republic of Moldova has a rather high solar radiation density: a 1m2 area gets up to 3.5 kWh/day. The average amount of sunny weather reaches 2,180 hours annually.

Reductions in the cost of solar cells can be achieved by employing low-cost fabrication technologies, using low cost elements - such as Cu, Zn, Sn, S, Se. This project proposes reductions in the cost of photovoltaic technologies; an important step for the development of sustainable, domestic energy sources in Moldova.

A good number of basic studies have been carried out on the bulks and single crystals of both Cu2ZnSn (Se1-xSx)4 and WxMo1-xS2 solid solutions; deducing the relationship between the growth processes and physical properties of these materials.

The next step for development of photovoltaic energy in the Republic of Moldova (RM) and a step towards creating high efficiency, low cost, non-toxic, thin-film, clean photovoltaic devices would be the development of the growth technology of CZTS (chemical substance Cu2ZnSnS4) thin films by low-cost and easy-scalable spray pyrolysis methods.

Ball-and-Stick (a) and Polyhedron (b) presentations of the Cu2ZnSnS4 structure

A greater understanding is needed of the structural, optical, luminescent, and transport properties of Cu2ZnSnS4 thin films; as well as an understanding of the development of the growth technology of CZTS-based solar cell heterostructures; and data on the solar energy conversion efficiency of CZTS-based solar cells.

This knowledge will help to understand the physics of these materials and heterostructures and give routes to designing technologies for growing structurally perfect films and devices on the basis of such knowledge.

Contact Details

Arushanov Ernest Konstantin, Academician
Organization: Institute of Applied Physics
Address: Academy, 5, Chisinau MD-2028, Moldova
(+373.22) 735531
This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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