Polymer Photovoltaics with Alternating Copolymer/Fullerene Blends and Novel Device Architectures

• The synthesis of novel conjugated polymers, designed for the purpose of photovoltaic energy conversion, and their properties in polymer/fullerene materials and photovoltaic devices are reviewed. Two families of main chain polymer donors, based on fluorene or phenylene and donor-acceptor-donor comonomers in alternating copolymers, are used to absorb the high-energy parts of the solar spectrum and to give high photovoltages in combinations with fullerene acceptors in devices. These materials are used in alternative photovoltaic device geometries with enhanced light incoupling to collect larger photocurrents or to enable tandem devices and enhance photovoltage.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering (hsv//eng)

NATURVETENSKAP  -- Kemi (hsv//swe)

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

Keyword

heterojunction solar-cells

open-circuit voltage

response

photocurrent spectral

charge-transport

conjugated polymers

efficiency

low-bandgap polyfluorene

quantum

acceptor units

gap polyfluorene

trapping light

TECHNOLOGY

Publication and Content Type

art (subject category)

ref (subject category)