Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
April 15, 2014
ChemPhysChem 06/2014: Special issue on hybrid organic–inorganic photovoltaics
Issue 6 is a special issue on hybrid organic–inorganic photovoltaics, published on the occasion of Michael Grätzel's 70th birthday. It has been guest edited by M. K. Nazeeruddin, J. Bisquert, and S. Ahmad and includes a selection of invited contributions in many interesting areas. In a Review, E. M. J. Johansson, H. Rensmo, and colleagues describe the use of X-ray-based spectroscopic methods to study the atomic and electronic structures of interfaces in dye-sensitized solar cells (DSSCs). The Article by N.-G. Park et al. evaluates the limiting factors affecting the photovoltaic performance of TiO2 films in DSSCs. In the same section, M. Abrahamsson, W. B. Heuer, G. J. Meyer and co-workers present high-extinction-coefficient Ru sensitizers that promote hole transfer on nanocrystalline TiO2. In the Communications section, R. Li, P. Wang at al. show that it is possible to tune the charge-transfer dynamics of sensitized solar cells by altering the self-organization of dyes on titania using dyeing solvents. Finally, T. Miyasaka and A. Ishii describe a metallocene molecular complex as visible-light absorber for high-voltage organic–inorganic hybrid photovoltaic cells (see picture).
Recently Published Articles
- Coherent Magnetic Resonance of Nanocrystal Quantum-Dot Luminescence as a Window to Blinking Mechanisms
Dr. Kipp J. van Schooten, Prof. Christoph Boehme and Prof. John M. Lupton
Article first published online: 23 APR 2014 | DOI: 10.1002/cphc.201400081
Quantum dot sub-ensembles: Auger recombination and charge trapping are identified as underlying mechanisms of quantum dot (QD) blinking but are difficult to address as isolated effects. By using coherent magnetic resonance to define QD sub-ensembles, spin-dependent photoluminescence-quenching mechanisms are addressed individually with pulses of microwaves. This technique reveals spin-dependent transitions consistent with blinking mechanisms, complementing information from single QD microscopy.
- Thermodynamics of Micellization from Heat-Capacity Measurements
Dr. Bojan Šarac, Prof. Dr. Marija Bešter-Rogač and Prof. Dr. Jurij Lah
Article first published online: 23 APR 2014 | DOI: 10.1002/cphc.201400096
Dissection of micellization: The importance of a proper understanding and analysis of differential scanning calorimetry thermograms for thermodynamic characterization of micellization of different surfactant types is shown. The fraction of micelles (and thus heat capacity) changes upon heating a 10 mM surfactant (sodium lauroyl sarcosinate) solution (see picture). The heat-capacity peaks coincide with the critical micelle concentration values at the indicated temperatures (arrows).
- Does Excited-State Proton-Transfer Reaction Contribute to the Emission Behaviour of 4-Aminophthalimide in Aqueous Media?
Dr. Dinesh Chandra Khara, Sanghamitra Banerjee and Prof. Anunay Samanta
Article first published online: 17 APR 2014 | DOI: 10.1002/cphc.201400078
Insight into photophysics: The time-resolved and time-integrated fluorescence response of 4-aminophthalimide and its derivative does not indicate photoinduced solvent-mediated intramolecular proton transfer in protic media. Two distinct types of hydrogen-bonded complex of the molecule with the solvent are identified and a new explanation for the solvent isotope effect is suggested.
- Reversible Chemical Reactions for Single-Color Multiplexing Microscopy
M.Sc. Dominik Brox, Dr. Michael Schwering, Dr. Johann Engelhardt and Dr. Dirk-Peter Herten
Article first published online: 17 APR 2014 | DOI: 10.1002/cphc.201402012
Taking it back: Reversible chemical reactions can be used to extend the number of imaging channels in fluorescence microscopy. The feasibility of this complementary approach is demonstrated experimentally by imaging four different structures in fixed cells in only two different spectral channels. In addition to aberration-free overlay of microscopic images, its potential for reversible saturable optical fluorescence transition techniques is discussed.
- Regio- and Stereospecificity in the Oxygenation of Arachidonic Acid Catalyzed by Leu597 Mutants of Rabbit 15-Lipoxygenase: A QM/MM Study
Dr. Reynier Suardíaz, Dr. Laura Masgrau, Prof.Dr. José M. Lluch and Prof. Dr. Àngels González-Lafont
Article first published online: 17 APR 2014 | DOI: 10.1002/cphc.201402045
Mutant powers: Quantum mechanics/molecular mechanics are used to analyze the effects of mutation of Leu597 by Val and Ala in the peroxidation of arachidonic acid catalyzed by rabbit 15-lipoxygenase. Mutation of bulky Leu597 to a shorter Val residue diminishes the regiospecificity and maintains stereospecificity, but mutation to Ala, a residue even shorter than Val, enhances regiospecificity and inverts stereospecificity.