Structural and electronic properties of oligo- and polythiophenes modified by substituents

• Simon P. Rittmeyer and
• Axel Groß

Beilstein J. Nanotechnol. 2012, 3, 909–919, doi:10.3762/bjnano.3.101

• , e.g., as organic transistors, photoresistances or polymer light-emitting diodes (LEDs) [11]. In particular, thiophene-based organic solar cells have shown remarkable efficiency [5][8]. Nevertheless they are still relatively cheap in production [12]. For all these applications, the particular

Physics, chemistry and biology of functional nanostructures

• Paul Ziemann and
• Thomas Schimmel

Beilstein J. Nanotechnol. 2012, 3, 843–845, doi:10.3762/bjnano.3.94

• building blocks such as polythiophenes. These molecules are especially interesting for organic solar cells [11] and have been analyzed also by STS [12]. Of course, the contributions to this Thematic Series form just a snapshot of the current activities focused on functional nanostructures. We hope, however

Low-temperature synthesis of carbon nanotubes on indium tin oxide electrodes for organic solar cells

• Andrea Capasso,
• Luigi Salamandra,
• Aldo Di Carlo,
• John M. Bell and
• Nunzio Motta

Beilstein J. Nanotechnol. 2012, 3, 524–532, doi:10.3762/bjnano.3.60

• believe that using a mat of MWCNTs as a functional buffer layer for ITO should guarantee an increase in both the charge collection and in the lifetime of the device. In order to test the last statement, test organic solar cells were built with two of our CNT-enhanced anodes: sample C (whose

• . Characteristics of the organic solar cells: open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF) and power conversion efficiency (η). Acknowledgements The authors acknowledge the financial support of the Queensland State Government through the NIRAP Project “Solar powered nanosensors

• solar cells based on poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM), the MWCNT-enhanced electrodes are found to improve the charge-carrier extraction from the photoactive blend, thanks to the additional percolation paths provided by the CNTs. The work function of as

Optical properties of fully conjugated cyclo[n]thiophenes – An experimental and theoretical approach

• Elena Mena-Osteritz,
• Fan Zhang,
• Günther Götz,
• Peter Reineker and
• Peter Bäuerle

Beilstein J. Nanotechnol. 2011, 2, 720–726, doi:10.3762/bjnano.2.78

• organic field-effect transistors, organic solar cells, and sensors [1][2][3][4]. Typically, such π-conjugated systems comprise extended linear one-dimensional (1D) structures showing interesting optoelectronic properties. In the solid state they represent organic semiconductors, whereas by doping with

Organic–inorganic nanosystems

• Paul Ziemann

Beilstein J. Nanotechnol. 2011, 2, 363–364, doi:10.3762/bjnano.2.41

• organic solar cells, to name but a few. In all cases, the organic component must be brought into contact with a conducting electrode, usually a metal or a highly doped semiconductor. Each of these contacts represents an organic–inorganic interface with gradients on the nanoscale. Due to the importance of