Hybrid solar cells based on porous Si and copper phthalocyanine derivatives

Journal Article · Mon Dec 20 00:00:00 EST 2004 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.1839280· OSTI ID:20634575

Levitsky, I A; Euler, W B; Tokranova, N; Xu, B; Castracane, J ^[1]

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1. Emitech, Inc., Fall River, Massachusetts 02720 (United States)

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/cm{sup 2}), 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.

• OSTI ID: 20634575
• Journal Information: Applied Physics Letters, Vol. 85, Issue 25; Other Information: DOI: 10.1063/1.1839280; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHARGE EXCHANGE
COPPER COMPLEXES
COPPER COMPOUNDS
ILLUMINANCE
LIQUID CRYSTALS
ORGANIC SEMICONDUCTORS
PHTHALOCYANINES
POROUS MATERIALS
SILICON
SOLAR CELLS
SURFACES
VISIBLE RADIATION