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

• research efforts have been recently directed to improve their power-conversion efficiency (PCE), in order to make these cells commercially viable [2]. The most promising active materials for organic cells are semiconducting polymers and fullerene derivatives, whose mixtures result in the formation of an

• the fullerene derivative acts as an electron acceptor [6]. The holes move in the polymeric phase towards the anode, while the electrons hop along the fullerenes and eventually reach the cathode. Since the diffusion length of the exciton in the polymers is very low, recombination is highly probable

• ]. Many approaches have been proposed in order to overcome such fundamental issues and to improve the performances of P3HT:PCBM solar cells. In particular, very promising advances can be gained by increasing the nanoscale ordering of the polymer/fullerene composite. Different means have been proposed

Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

• Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

• of a modified C60 [87]. An agreement between the measured photocurrent action spectrum and the absorption spectrum of the modified fullerene served as an indication that the photoactive species was the modified fullerene. A photon-to-current conversion efficiency as high as 15% was measured