Title :
Cu2ZnSnSe4 Monograin Powders for Solar Cell Application
Author :
Altosaar, M. ; Raudoja, J. ; Timmo, K. ; Danilson, M. ; Grossberg, M. ; Krunks, M. ; Varema, T. ; Mellikov, E.
Author_Institution :
Tallinn Univ. of Technol.
Abstract :
Cu2ZnSnSe4 monograin powders with different Zn/Sn concentration ratios were synthesized from binaries and elemental selenium, p-type CCu2ZnSnSe4 monograins of stannite structure had tetragonal shape with rounded edges. PL spectra showed one symmetrical band with peak position at 0.81 eV. Monograin layer solar cell structures graphite/Cu2ZnSnSe4/CdS/ZnO had open circuit voltage over 400 mV, short circuit current 15.5 mA/cm2 and FF41 %
Keywords :
copper compounds; crystal microstructure; photoluminescence; powders; solar cells; ternary semiconductors; tin compounds; zinc compounds; Cu2ZnSnSe4; PL spectra; Zn-Sn concentration ratios; elemental selenium; monograin layer solar cell structures; open circuit voltage; p-type monograin powders; rounded edges; short circuit current; solar cell application; stannite structure; symmetrical band; tetragonal shape; Composite materials; Copper; Crystalline materials; Crystals; Photovoltaic cells; Powders; Sputtering; Surface morphology; X-ray scattering; Zinc oxide;
Conference_Titel :
Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
1-4244-0017-1
Electronic_ISBN :
1-4244-0017-1
DOI :
10.1109/WCPEC.2006.279492
