The DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM) will take place from March 19 – 24 in Dresden this year. Below, you find a list of our group’s contributions throughout the week. We are looking forward to an exciting and fruitful week of discussions and exchange. See you there. (There is even a hashtag for the event: #DPGDD17)
Ryutaro Komatsu (see below) is currently visiting our group as part of an ongoing exchange program between TU Dresden and Universities from Japan. He is a PhD candidate of Prof. Junji Kido from Yamagata University – good chance to see some of their recent work.
This year, the 14th European Conference on Molecular Electronics (ECME) will be
held in Dresden on August 29 – September 2, 2017. Important date to remember and of course consider is the deadline for the Call for Papers, which is March 31, 2017. Please check it out to learn more about the different topics the conference will cover. The event already has a broad and exciting collection of invited speakers and now it is looking for your contribution to turn it into a great and vivid week of molecular electronics science.
As the title indicates, some new concepts for devices based on organic materials will be central in this session. This is complemented by some efforts on modeling. Keywords for this session are:
Stretchable electronic structures
Modeling exciton and polaron dynamics for transient EL in OLEDs
Nanoscale electrical inhomogeneities in OLEDs
Visible light communications with organic systems
Method to predict interface barriers in OLED layers
Rare-earth up-conversion composites for PV
Our invited speaker in the morning is Graham A. Turnbull. Note: Franky So was not able to come to Phoenix, so that his presentation is cancelled. Klaus Meerholz had his talk already late last night.
EP1.8: Excitonic Charge Transfer States
Our final look in this last session is on charge transfer states and related phenomena. Most naturally, this is the time, where we will have presentations that are closer to photovoltaic properties than in the days before. Actually, this session closes the loop to the first sessions of the week, where we were guided a lot by internal charge transfer states in TADF materials.
Here are some details to the post-lunch session:
Enhancing exciton dissociation rates at heterojunctions using FRET
CT state transport at donor-acceptor blends
Magnetic field modulation of exciton recombination
Tailoring interfaces using additive engineering
Generation and modulation of chi^2 optical non-linearities
Printing highly efficient solution processed solar cells
Multiple CT states in ordered and disordered systems
Max Shtein will be our invited speaker of the afternoon session.
This afternoon, we are progressing with the general scheme of topics with the session EP1.5 Excitons in Organic and Hybrid Systems II of our Symposium EP1. Important: We have one additional speaker in the afternoon: Klaus Meerholz – his talk got shifted from Friday to this session. The following topics we will see:
NIR EL from surface plasmons
Area light-emitting transistors
Multiple FRET pathways
Topological phases in organic materials
Manipulating Excitons with plasmonic nanoantennas
Singlet exciton fission
Real time exciton diffusion mapping
Organic memory devices
Our invited speakers for the afternoon are JanaZaumseil, Joel Yuen-Zhou, Gleb M. Akselrod, and Klaus Meerholz.
This announcement comes in parallel with the start of the session Excitons in Organic and Hybrid Systems I of our Symposium EP1, which began 5 minutes ago. Today we are looking in more detail on processes connected with excitons in organic and hybrid systems. We will see sophisticated techniques, modeling, etc.
Here are some keywords that we will come across during the morning program:
Nanoscale exciton migration
QM/MM simulation of TADF materials
Exciton migration in TADF materials
Exciton transport in colloidal QDs
Single molecule look on TADF
Spatial confinement of triplet excitons in rubrene
Exciton processes in OLEDs
Our invitees are Naomi Ginsberg, William Tisdale, John Lupton, and Grayson Ingram.
The morning focus will be on the emitters itself, where we will here recent progress on various molecular concepts for high performance luminescence. This will include the fundamental studies that excel our current understanding of these emitters. Some things that we will see:
Design rules for TADF emitters
Crystalline OLED emission layers for nearly perfect emitter alignment
Investigation of exciplex emission (electric field dependence and charge separation)
Platinum complexes for high efficiency, color pure blue OLEDs
Control of molecular orientation
TADF emitters for LECs and OLEDs
Biluminescence for optical sensing
Photophysics of H- and J-aggregates
Our invited speakers of the morning are: Andrew Monkman, Wolfgang Brütting, and Frank Würthner.
EP1.3: Organic Lasers
In the afternoon we switch gears – Its laser time. With the basis of the laser tutorial we had on Monday, we should be all set for some interesting contributions related to laser physics with organics. Important: Due to a serious illness of one of our speakers, the program of the first part of the EP1.3 session has been updated. We will start at 2:00pm rather than the originally planned time of 1:30pm. Please refer to the online program for the latest updates!
Here are some details to the post-lunch session:
Condensate physics with organic polaritons
Tunable, narrow line width solid-state lasers
LED-pumped organic lasers (planar integration) based on luminescent concentration
Self-assembled colloidal lasers
Low threshold up-converted laser
Strong coupling in organic microcavities
Solvent nano imprint lithography of polymer lasers
Photoluminescence enhancement in nano cavities
Our afternoon invited speakers are: Stéphane Kéna-Cohen and Alexander J. Kuehne.
Again, a lot of cool and interesting things to look forward to. See you tomorrow!
Tomorrow, Tuesday March 29, we start out with the first Session of our Symposium EP1 Organic Excitonic Systems and Devices. The session runs under the title Organic Light-Emitting Devices (OLEDs). So clearly, we are looking to a collection of recent progress on the OLED technology, where the optimization of efficiency is in the central focus. Here are some keywords that will represent the content of tomorrow:
Enhanced emission of OLEDs
Bright NIR OLEDs based on high mobility polymers
Intrinsic degradation mechanisms in UV and blue OLEDs
Increased stability of TADF OLEDs
100% triplet harvesting in fluorescent OLEDs
Blue phosphorescent OLEDs
Absence of triplet up-conversion in anthracene based emitters
Afterglow OLEDs (a demonstration of biluminescence in OLEDs)
Origin and control of emitter orientation in OLEDs
Our invited speakers for this session are: Mark Thompson, Stephen R. Forrest, and Jang-Joo Kim.