Title :
Performance optimization by considering current matching in polymer tandem solar cells
Author :
Zhizhe Wang ; Chunfu Zhang ; Dazheng Chen ; Wei Wei ; Yue Hao
Author_Institution :
Sch. Of Microelectron., Xidian Univ., Xi´´an, China
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
Considering current matching of the subcells, the optimized active layer thicknesses are obtained for structures of ITO/PEDOT:PSS/P3HT:PCBM/ZnO/PED-OT:PSS/pBBTDPP2:PCBM/Al (normal) and ITO/PED-OT:PSS/pBBTDPP2:PCBM/ZnO/PEDOT:PSS/P3HT:P-CBM/Al (reverse) by detailed optical simulations, respectively. Because of the different layer sequences and material properties, it is observed that the normal structure shows its superiority in current matching when the active layers are relatively thick. However, the reverse structure shows better performance as the active layers are relatively thin. The results are very instructive since we can choose the thinner reverse structure to achieve matching short circuit current density (JSC).
Keywords :
aluminium; current density; indium compounds; polymer blends; short-circuit currents; solar cells; zinc compounds; ITO; P3HT; PCBM; PEDOT; PSS; aluminum; current matching; material property; normal structure; optical simulations; optimized active layer thicknesses; pBBTDPP2; performance optimization; polymer tandem solar cells; short circuit current density; subcells; thinner reverse structure; Absorption; Educational institutions; Photonics; Photovoltaic cells; Polymers; Zinc oxide;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-2474-8
DOI :
10.1109/ICSICT.2012.6467741
