An alternating low band-gap polyfluorene for optoelectronic devices

• An alternating polyfluorene (APFO) with low band-gap segments. APFO-Green1, was synthesized for use in optoelectronic devices. The low band-gap segment consists of an electron acceptor (A), fenced by electron donors (D). This D-A-D configuration leads to partial charge transfer in the polymer backbone and a low band-gap of 1.3 eV. Characterization of APFO-Green1 include measurement of light absorption and emission at extended wavelengths and high hole mobility was found. Blends of the polymer with different fullerene derivs. exhibit unusually high photovoltaic performance at long wavelengths, making this type of conjugated polymers promising for application in plastic solar cells. [on SciFinder (R)]

Subject headings

NATURVETENSKAP  -- Kemi -- Polymerkemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Polymer Chemistry (hsv//eng)

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Keyword

Solar cells (alternating low band-gap polyfluorene for solar cells)

alternating low band-gap polyfluorene for solar cells)

USES (Uses) (conjugated

Polymers Role: DEV (Device component use)

AFPO Green1 synthesis fullerene blend solar cell

SPN (Synthetic preparation)

alternating band gap polyfluorene optoelectronic device

Band gap

PRP (Properties)

PREP (Preparation)

Publication and Content Type

art (subject category)

ref (subject category)