I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com)…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
Focus on Pumps
Self-priming, liquid-ring pumps enable hygienic operation The CFS AS/ASH Series…
NEW PRODUCTS + Show More

Comment

New technique simplifies doping for organic semiconductors

By Scott Jenkins |

A new solution-based method for introducing doping into organic semiconductor films could simplify the manufacture of efficient single-layer photovoltaic cells and move them closer to a commercial reality. Beyond solar cells, the doping technique could be more broadly used in other areas of organic electronics. Developed by a team of researchers at the Georgia Institute of Technology (Atlanta; www.gatech.edu), along with partners at three other institutions, the technique could expand the potential applications for this technology, such as wearable electronics and small-scale, distributed power generation. The process involves immersing organic semiconductor films into nitromethane solutions of polyoxometalates, which are polyanions containing transition metals (tungsten or molybdenum atoms, in this case). When exposed to the solution for several minutes, the metal atoms diffuse into the organic film, leading to efficient p-type (electron hole) electrical doping to a depth of 10–20 nm from the surface of the film, the researchers say. “The p-doped regions show increased electrical conductivity and high work function, reduced solubility in the processing solvent, and improved photo-oxidation stability in air,” says the Georgia…
Related Content
Chementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com) launched its latest propane dehydrogenation (PDH) catalyst, Catofin 311, which…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat