Concept

Polyacetylene

Related publications (57)

Combining a Small Hole-Conductor Molecule for Efficient Dye Regeneration and a Hole-Conducting Polymer in a Solid-State Dye-Sensitized Solar Cell

In dye-sensitized solar cells an efficient transfer of holes from the oxidized dye to the contact is necessary, which in solid-state dye-sensitized solar cells is performed by hole-conductor mols. In this report we use photoinduced absorption and transient ...

2012

Opto-thermal actuation in double layer polymer microcantilevers

Luis Guillermo Villanueva Torrijo, Cristina Martin Olmos

Photostructurable polymers, such as SU-8, have large potential impact on the field of MEMS/NEMS, allowing simple fabrication of plastic MEMS/NEMS devices with nearly vertical sidewalls and high aspect ratios using standard photolithographic procedures. Fun ...

2011

New Acetylene Chemistry

Davinia Fernández González

This thesis is divided in seven main chapters including an introduction about the state of the art in the field, four main chapters describing the main part of the work, a short insight on the implications of the presented results for other research projec ...

EPFL2011

Cyclopropanes and Hypervalent Iodine Reagents: High Energy Compounds for Applications in Synthesis and Catalysis

Jérôme Waser, Stefano Nicolai, Jonathan Brand, Filippo De Simone

One of the major challenges faced by organic chemistry is the efficient synthesis of increasingly complex molecules. Since October 2007, the Laboratory of Catalysis and Organic Synthesis (LCSO) at EPFL has been working on the development of catalytic react ...

2011

Tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(III) as p-Type Dopant for Organic Semiconductors and Its Application in Highly Efficient Solid-State Dye-Sensitized Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Chenyi Yi, Amalie Dualeh, Julian Burschka

Chemical doping is an important strategy to alter the charge-transport properties of both molecular and polymeric organic semiconductors that find widespread application in organic electronic devices. We report on the use of a new class of Co(III) complexe ...

2011

Influence of nitrogen dopants on N-doped TiO2 electrodes and their applications in dye-sensitized solar cells

Ulf Anders Hagfeldt

Three different types of nanocryst., N-doped TiO2 electrodes were synthesized using several nitrogen dopants through wet methods. The obtained nanocryst., N-doped TiO2 electrodes possessed different crystallite sizes, surface areas, and N-doping amts. Char ...

2011

Reactivity of a rhenium hydroxo-carbonyl complex toward carbon disulfide: insights from theory

Pablo Campomanes Ramos

The reaction mechanism on the formation of the hydrosulfido complex [Re(SH)(CO)(3)(bipy)] via the reaction of [Re(OH)(CO)(3)(bipy)] with carbon disulfide was theoretically investigated at the B3LYP/6-31+G(d, p) (LANL2DZ+f for Re) level of theory taking int ...

2010

(Y0.5Lu0.5)2O3:Eu3+ nanopowders: Combustion synthesis, structure and optical properties

Barbora Bártová

In this work we explored the possibility of obtaining nanocrystalline (Y0.5Lu0.5)2O3 powders, doped with europium and co-doped with praseodium, employing polymer complex solution synthesis. Polyethylene glycol, with average molecular weight 200, served bot ...

2010

Self-energy effects and electron-phonon coupling in Fe-As superconductors

Helmuth Berger

Doping and temperature dependent studies of optical phonon modes in Fe-122 pnictides are performed using Raman scattering experiments and compared with model calculations to elucidate the role of electron-phonon and spin-phonon interaction in this family o ...

2010

Photoexcited carrier relaxation dynamics in pentacene probed by ultrafast optical spectroscopy: Influence of morphology on relaxation processes

Verner Thorsmolle

We present a comparative study of ultrafast photoexcited state relaxation in pentacene single crystals and in pure and C-60-doped pentacene films using optical pump-probe spectroscopy. The photoinduced absorption spectra in pentacene crystals is consistent ...

2009

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