Title

Hybrid solar cells based on porous Si and copper phthalocyanine derivatives

Document Type

Article

Date of Original Version

12-20-2004

Abstract

We demonstrate a solar cell based on n -type nanoporous Si (PSi) filled with copper phthalocyanine (CuPC) and its derivatives (including a discotic liquid crystal form). The CuPC device shows conversion efficiency up to 2% under white light illumination (20-30 mW cm2), distinct from cells filled with CuPC derivatives with alkyl chains attached to the core. It is concluded that a critical issue for efficient photocarrier generation is the distance between the CuPC core and the PSi surface. Both organic and inorganic components contribute to photoinduced charge transfer and transport processes. The influence of the PSi structure and pore filling on the solar cell performance is discussed. © 2004 American Institute of Physics.

Publication Title

Applied Physics Letters

Volume

85

Issue

25

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