Concept

Molar absorption coefficient

Publications associées (140)

Switchable Selective Absorber Coatings for Overheating Protection of Solar Thermal Collectors

Overheating is a common problem both with the use of active and passive solar energy in solar thermal energy systems and in highly glazed buildings. In solar thermal collectors, the elevated temperatures occurring during stagnation result in reduced lifeti ...

EPFL2013

Dual-Band Perfect Absorber for Multispectral Plasmon-Enhanced Infrared Spectroscopy

Hatice Altug, Kai Chen

Metamaterial-based perfect absorbers utilize intrinsic loss, with the aid of appropriate structural design, to achieve near unity absorption at a certain wavelength. For most of the reported absorbers, the absorption occurs only at a single wavelength wher ...

2012

Click-Functionalized Ru(II) Complexes for Dye-Sensitized Solar Cells

Michael Graetzel, Paul Joseph Dyson, Shaik Mohammed Zakeeruddin, Nuttapol Pootrakulchote, Ryan Dykeman, Amaresh Mishra

Three heteroleptic ruthenium complexes incorporating new ancillary ligands synthesized by sequential connection of different alkyl functionalities with triazole as a linker are prepared using click chemistry. These sensitizers exhibit low-energy metal-to-l ...

Wiley-VCH Verlag Berlin2012

Bistriphenylamine-based organic sensitizers with high molar extinction coefficients for dye-sensitized solar cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Filippo de Angelis, Hoi Nok Tsao

A series of novel bistriphenylamine-based organic sensitizers (coded as RC-dyes) with high molar extinction coefficients (>5.0 x 10(4) M-1 cm(-1)) have been synthesized for dye-sensitized solar cells (DSSCs). By changing the length of the pi-conjugation br ...

2012

Monitoring of a Steel-Lined Pressure Shaft using Global Indicators and the Frequency Response Function”

Anton Schleiss, Fadi Hachem

Due to high peak energy demands, existing hydropower plants operate nowadays under rough conditions to regulate the discharge and power with relatively fast and repeated opening and closing of turbines and pumps. The local deterioration of the mechanical p ...

2012

Donor-p-Acceptors Containing the 10-(1,3-Dithiol-2-ylidene)anthracene Unit for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Robin Humphry-Baker, Magdalena Anna Marszalek

Two donoracceptor molecular tweezers incorporating the 10-(1,3-dithiol-2-ylidene)anthracene unit as donor group and two cyanoacrylic units as accepting/anchoring groups are reported as metal-free sensitizers for dye-sensitized solar cells. By changing the ...

Wiley-Blackwell2012

Effective Heat and Mass Transport Properties of Anisotropic Porous Ceria for Solar Thermochemical Fuel Generation

Sophia Haussener, Aldo Steinfeld

High-resolution X-ray computed tomography is employed to obtain the exact 3D geometrical configuration of porous anisotropic ceria applied in solar-driven thermochemical cycles for splitting H2O and CO2. The tomography data are, in turn, used in direct por ...

MDPI2012

Dye metachromasy on titanate nanowires: sensing humidity with reversible molecular dimerization

László Forró, Arnaud Magrez, Endre Horvath, Primoz Rebernik Ribic

We report on the reversible dimerization of methylene blue (MB) on titanate nanowires. The self-organizational properties of MB on the surface of this nanostructured material studied by spectroscopic means revealed that the light absorption properties of t ...

Royal Society of Chemistry2012

Phosphorescent Binuclear Iridium Complexes Based on Terpyridine-Carboxylate: An Experimental and Theoretical Study

Marinella Mazzanti

The phosphorescent binuclear iridium(III) complexes tetrakis(2- phenylpyridine)μ-(2,2′:6′,2″-terpyridine-6, 6″-dicarboxylic acid)diiridium (Ir1) and tetrakis(2-(2,4-difluorophenyl) pyridine))μ-(2,2′:6′,2″-terpyridine-6,6″- dicarboxylic acid)diiridium (Ir2) ...

2011

Enhanced light harvesting in mesoporous TiO2/P3HT hybrid solar cells using a porphyrin dye

Michael Graetzel, Shaik Mohammed Zakeeruddin, Kevin Sivula, Soo-Jin Moon

We report panchromatic light harvesting in hybrid TiO2/P3HT photovoltaic devices using a porphyrin dye that complements the light absorption of P3HT. The high short circuit photocurrent (12.1 mA cm(-2)) obtained is found to be due, in part, to Forster reso ...

2011

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