2011

A happy and successful new year to you! It is almost three years since I started this blog, this being the 69th post. A lot happened in this time, also for me: both personally (as some of the long term readers now;-) and professionally (despite still being in Würzburg;-). So, let me thank you, valued reader – and comments contributor, an active participation which I highly appreciate!

Many things I want to write about I have not had time to handle in the recent months. For now, let me start with just briefly revisiting what I have written. Hints of what I will add in the coming weeks and months are to come soon (soon meaning: worst case mid February, as one proposal is submitted by then, lecture is finished and project meeting / seminar talk marathon “finished”;-).

Find the overview below.All the best, Carsten

Introduction to

• Disordered Organic Semiconductors and some Definitions for excited states
• Basic Function of Organic Solar Cells, Part 0, Part 1, Part 2 and as cartoon
• Efficiency estimates and optimisation, also for Tandem solar cells
• Current-Voltage Characteristics
• Some Definitions for Recombination, which are slightly outdated, and an Introduction to Langevin Theory
• Find all of this in concise form in [Deibel 2010 Review]

Descriptions of

• Impact of Mobility on Efficiency, also considering Finite Surface Recombination
• Photocurrent in organic solar cells, Part 1 and Part 2

(Critical) Comments on

• Estimates on the Efficiencies of Organic Tandem Solar Cells
• Primary Photoexcitation in Polymer:Fullerene Blends
• Trimolecular Recombination
• Type of Polaron Recombination under Short Circuit Conditions
• Hot CT complexes and Geminate Recombination

News on

• Efficiencies: Plextronics 5.94% (August 2008), Heliatek 5.9%/6.07% (July 2009), Solarmer 7.9% (December 2009), Solarmer 8.13% (August 2010), Heliatek 7.7% (already shown in April);
  actually, now they are at 8.3% on >1 cm² (Heliatek with Tandem, 10/2010, and Konarka with single junction, 11/2010) [Solar Cell Efficiency Tables V37]
• Degradation: Improved Lifetime
• Production: organic roll-to-roll, inkjet printing of inorganic solar cells, organic inks, Company Funding, Heliatek starts production in 2012
• Materials: Buckyball polymers

Links to

• Scientific Writing and Publishing: Writing Style, How to publish, How to Publish a Scientific Comment, Metrics, Publish like a Pro
• Academic Productivity: Science 3.0?, Talking vs Doing

Personal news

• Married…, and again ;-)

Concerning Organic Photovoltaic Publications, the trend continues (using the same search phrases), see the graph.

Not exponential any more, but still growing steeply… it is more difficult to measure the quality, though.

Add to Connotea