دانلود مقاله با موضوع مطالعه نظری ترکیبات مزدوج جدید با فاصله باند کم
در قالب pdf و در 12 اسلاید،قابل ویرایش، شامل:
موضوع به انگلیسی:Theoretical study of new conjugated compounds with a low bandgap for
bulk heterojunction solar cells
بخشی از متن:Bulk heterojunction solar cells have attracted scientific and economic interest in recent years, and have just been
one of the future photovoltaic technologies to produce energy at low cost. To study the electronic and geometric
properties of a novel conjugated polymer called r-PTTDPP50, which is formed from a derivative of
diketopyrrolopyrrole (DPP), thiophene conjugated side chain and 2, 5-bis (trimethylstannyl) thiophene, functional
density theory (DFT) has been used with several methods such as B3LYP, PBEPBE, B3PW91 and
mPW1PW91 and the basis set 6-31G (d, p),to obtain the most appropriate method. The absorption properties
have been obtained by the CAM-B3LYP method. Then, the functional tests giving the closest result to the experimental
ones will be used to propose other structure candidates for applications in the domain of organic electronics.
This research has been used to conduct next syntheses to compounds more helpful as active materials
in optoelectronic.