Stacks on stacks on stacks
Inorganic / Materials / Nanotechnology

Stacks on stacks on stacks

Finding ways to create order is a common theme in science. Here researchers are trying to carefully arrange chromophores in order to create better solar cells (among other potential uses). In particular, these chemists are trying to make porphyrins stand up on a surface creating stacks of porphyrins that are a well defined distance from each other and from the surface they are attached to. Continue reading

Electrocatalytically Active Graphene–Porphyrin MOF Composite for Oxygen Reduction Reaction
Inorganic / Materials / Nanotechnology

Electrocatalytically Active Graphene–Porphyrin MOF Composite for Oxygen Reduction Reaction

Title:  Electrocatalytically Active Graphene–Porphyrin MOF Composite for Oxygen Reduction Reaction DOI:  10.1021/ja211433h Author:  Maryam Jahan, Qiaoliang Bao, and Kian Ping Loh Journal:  Journal of the American Chemical Society Affiliation:  Graphene Research Centre, Department of Chemistry, National University of Singapore, Singapore Take-home Importance According to the Authors: By reacting the pyridine-functionalized graphene with iron–porphyrin, a graphene–metalloporphyrin MOF with enhanced catalytic activity for … Continue reading

Controlling Nanoscale Architecture – Stepping Towards Synthetic Light Harvesting Complexes
General Interest / Nanotechnology / Physical

Controlling Nanoscale Architecture – Stepping Towards Synthetic Light Harvesting Complexes

Title: Anisotropic Organization and Microscopic Manipulation of Self-Assembling Synthetic Porphyrin Microrods That Mimic Chlorosomes: Bacterial Light-Harvesting Systems     Journal of the American Chemical Society Authors: Chappaz-Gillot, C., Marek, P. L., Blaive, B. J., Canard, G., Bürck, J., Garab, G., Hahn, H., Jávorfi, T., Kelemen, L., Krupke, R., Mössinger, D., Ormos, P., Reddy, C. M., Roussel, C., Steinbach, G., Szabó, … Continue reading

General Interest / Materials / Nanotechnology

Continuous in situ generation and reaction of phosgene in a microflow system

Title:  Continuous in situ generation and reaction of phosgene in a microflow system Authors:  Shinichiro Fuse, Nobutake Tanabe, and Takashi Takahashi* Journal:  Chemical Communications Affiliation:  Department of Applied Chemistry, Tokyo Institute of Technology, Tokyo, Japan. Take-Home Importance according to the Authors:  Continuous in situ generation of phosgene and its use in acid chloride formation in … Continue reading

Inorganic / Nanotechnology / Physical

Molecular-scale versions of diodes invert “normal” diode behavior

Article Title: Inverse Rectification in Donor-Acceptor Molecular Heterojunctions Authors:  Shannon K. Yee, Jibin Sun, Pierre Darancet, T. Don Tilley, Arun Majumdar, Jeffrey B. Neaton,  and Rachel A. Segalman Journal: ACS Nano Affiliation: University of California- Berkeley: Department of Mechanical Engineering, Department of Chemical and Biomolecular Engineering, Department of Chemistry. Molecular Foundry at Lawrence Berkeley National Lab. U.S. … Continue reading

Materials / Nanotechnology / Physical

Tiny stamps make patterns with different energy levels for LEDs

Title: Spatially Modulating Interfacial Properties of Transparent Conductive Oxides: Patterning Work Function with Phosphonic Acid Self-Assembled Monolayers Authors: Kristina M. Knesting , Peter J. Hotchkiss , Bradley A. MacLeod , Seth R. Marder , and David S. Ginger Journal: Advanced Materials Affiliation: Department of Chemistry, University of Washington, and School of Chemistry and Biochemistry, and Center for Organic Photonics and Electronics, Georgia … Continue reading