Patent · US Active

Carbon nanotubes as charge carriers in organic and hybrid solar cells

US9293720B2 · kind B2 · utility

1Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 19, 2008
Grant dateMar 22, 2016
Priority date—
Expiry dateJan 17, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P70/50
  • WIPO fieldMicro-structural and nano-technology
  • WIPO sectorChemistry

Abstract

Organic and organic/inorganic hybrid bulk heterojunction photovoltaic devices with improved efficiencies are disclosed. The organic photovoltaic device comprises a photoactive polymer:fullerene C60-carbon nanotube (polymer:C60-CNT) composite as a component of the active layer. Under light irradiation, photoinduced charge separation at the polymer:C60 interface is followed by electron transfer from C60 onto CNTs for efficient electron transport towards an electrode. The organic/inorganic hybrid photovoltaic device comprises quantum dots and carbon nanotubes. Power conversion efficiency enhancement methods of polymer-CNT based photovoltaics are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.