Low cost patterning of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) films to increase organic photovoltaic device efficiency | Zendy

Joseph B. Emah | Zendy; Richard J. Curry | Zendy; S. Ravi P. Silva | Zendy

Open Access

Low cost patterning of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) films to increase organic photovoltaic device efficiency

Author(s) -

Joseph B. Emah,

Richard J. Curry,

S. Ravi P. Silva

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2973342

Subject(s) - pedot:pss , materials science , energy conversion efficiency , photovoltaic system , poly(3,4 ethylenedioxythiophene) , open circuit voltage , optoelectronics , conductive polymer , organic solar cell , organic semiconductor , thin film , nanotechnology , chemical engineering , layer (electronics) , voltage , polymer , composite material , electrical engineering , engineering

A low-cost lithographic technique to pattern poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) films with 10 nm deep features of 700 nm periodicity is demonstrated. The use of these patterned films in poly(3-hexylthiophene):[6,6]-phenylC61-butyric acid methyl ester organic photovoltaic devices leads to an increase in short circuit current (Jsc), fill factor, and power conversion efficiency (PCE) with only a slight reduction in open circuit voltage. Patterning the PEDOT:PSS at 150 °C increases Jsc from 2.44 to 3.03 mA/cm2 improving the PCE from 0.63% to 0.81% with similar increases due to patterning also being obtained at other temperatures.

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