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

fYear

2012

fDate

Oct. 29 2012-Nov. 1 2012

Firstpage

1

Lastpage

3

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 (J_SC).

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSICT.2012.6467741

Filename

6467741