Large polycyclic aromatic hydrocarbons for application in donor-acceptor photovoltaics

被引：7

作者：

Hesse, Holger Christian ^{[1
,2
]}

Schaffer, Christoph ^{[1
,2
]}

Hundschell, Christian ^{[1
,2
]}

Narita, Akimitsu ^{[3
]}

Feng, Xinliang ^{[3
]}

Muellen, Klaus ^{[3
]}

Nickel, Bert ^{[1
,2
]}

Schmidt-Mende, Lukas ^{[1
,2
,4
]}

机构：

[1] Univ Munich, Dept Phys, D-80799 Munich, Germany

[2] Univ Munich, Ctr Nanosci CeNS, D-80799 Munich, Germany

[3] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[4] Univ Konstanz, Dept Phys, D-78457 Konstance, Germany

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2012年 / 209卷 / 04期

关键词：

exciton diffusion; graphene; organic photovoltaics; photoluminescence quenching; HETEROJUNCTION SOLAR-CELLS; EXCITON DIFFUSION LENGTH; DISCOTIC LIQUID-CRYSTALS; DESIGN RULES; TRANSPORT; PERFORMANCE; GENERATION;

D O I：

10.1002/pssa.201127571

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the photovoltaic application of a donor-acceptor system consisting of very large polycyclic aromatic hydrocarbons. Using vacuum sublimated hexa-peri-hexabenzocor-onenes we evidence long exciton diffusion lengths of approximately 25 nm. In conjunction with the heaxfluorinated analogue for the first time a photovoltaic device using nanographene as active material for both donor and acceptor compounds was fabricated. The bi-layered device exhibits a remarkably high open circuit voltage of 1.39 V. Light absorption of the photoactive materials used here is strictly confined to wavelengths below 500 nm, rendering this approach especially interesting for the application in semi-transparent devices as well as multi-layered and tandem solar cells.

引用

页码：785 / 789

页数：5

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