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题目:

Role of transition metal oxides in the charge recombination layer used in tandem organic photovoltaic cells

 

 

作者:

Jian Li,a Qin-Ye Bao,a Huai-Xin Wei,a Zai-Quan Xu,a Jin-Peng Yang,a Yan-Qing Li,*a Shuit-Tong Leeab and Jian-Xin Tang*a

 

 

单位:

a Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China

b Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China

 

 

摘要:

The mechanism of charge recombination in transition metal oxide-based interconnectors for tandem organic photovoltaic cells is investigated, where the interconnector is composed of an abrupt heterointerface between a Mg-doped 4,7-diphenyl-1,10-phenanthroline (Mg:BPhen) layer and a MoO3 film. Based on the results of the interface energetics determined by ultraviolet photoelectron spectroscopy, as well as the corresponding device characteristics, it is revealed that the MoO3 layer pronouncedly modifies the energy level alignment of the interconnector, which is beneficial for the charge recombination process at the interface between MoO3 and the adjacent donor material for electrons and holes injected from stacked subcells. The incorporation of Mg:BPhen is essential for the conduction of the generated electrons from the bottom subcell into the conduction band of

MoO3.

 

 

影响因子:

5.101

 

 

分区情况:

1


 

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