Olivier Bardagot

#MATSUS in Valencia, Spain. What a nice conference focused on the development of next-gen OECTs and understanding of the fundamental mechanisms.
Thank you to @scottkeene.bsky.social, @SabineLudwig, @TomVanDerPol for the organisation and kind invitation 🧠☀️

Interesting paper about the benefit of blending 2 n-type polymers (here N2200 and glycolated-NDI derivates) to enhance the performance of OECTs. By @cgbischak.bsky.social and his team. onlinelibrary.wiley.com/doi/abs/10.1...

Transistors organiques ultra-sensibles : une avancée pour la détection de biomarqueurs Pour diagnostiquer ou surveiller une maladie, pouvoir détecter des quantités infimes de biomarqueurs, les indicateurs biologi

➡️ Press release ⬅️ How does our work at @icpees.bsky.social contribute improving biosensors for medical applications? This question is answered by the @cnrs-alsace.bsky.social press release which presents the improvements reported in our last article on high-performance OECTs.

I am grateful to @femtomat.bsky.social, @stelorg.bsky.social, and #SimoneFabiano 's group for their valuable contributions in this work!
#OECT #Anisotropy #AdvancedMaterials

I am grateful to @femtomat.bsky.social, @stelorg.bsky.social, and #SimoneFabiano 's group for their valuable contributions in this work!
#OECT #Anisotropy #AdvancedMaterials

Figure 5 finally presents how aligned OECTs enhance the stability over 1000 pulsing cycles compared to non-aligned ones. Note that the stability remains the key parameter to enhance. Limiting the (de)doping range enhances stability, reaching 93% of Ids retention, at the expense of Ids amplification.

Figure 4 summarizes the enhancement of the normalized-gm (recalculated from the literature) and µC* values over the years for aqueous-based OECTs, underlining the unprecedented values achieved with aligned PBTTT-8O. A naive sketch tentatively illustrates the key parameters benefiting aligned films.

Figure 3 presents you how correlating the evolution of the absorbance of the channel vs. the Ids current flowing through over 1000 ON/OFF cycles informs us on the mechanisms of degradation. The aligned channels demonstrated faster response and higher cycling stability compared to non-aligned ones.

Figure 2 highlights that the > x10 Ids output enhancement is directly found on the transfer curves (raw data, independent of any model)

Figure 1 shows that aligning the polymer chain along the OECT channel direction does not imapct the electrochemical doping behaviour comapred to non-aligned channel

➡️ Paper out in Adv. Mater. ⬅️ Want to boost the IDS output of an OECT? By aligning the chains of a high-perf' single-ether PBTTT, we reached an unprecedented signal amplification (gmL/Wd = 2 580 S cm-1). Collab:
@femtomat.bsky.social
@stelorg.bsky.social
onlinelibrary.wiley.com/doi/abs/10.1...

Versatile Direct (Hetero)Arylation Polymerization of Electro‐Deficient Unsubstituted Thiazolo[5,4‐d]Thiazole: A Tool to Lower the LUMO Level An unsubstituted thiazolo[5,4-d]thiazole (TzTz) unit is used to synthesize a series of novel semiconducting polymers via eco-friendly direct arylation polymerization. These TzTz-based copolymers, wit....

A new paper is out! By combining unsubstituted thiazolo[5,4-d]thiazole (TzTz) and direct (hetero)arylation polymerisation (DHAP), ambipolar and n-type conjugated polymers with improved backbone planarity and deep LUMO levels have been synthesised.
onlinelibrary.wiley.com/doi/10.1002/...

Brilliant talk today by Prof. Chihaya Adachi from OPERA, Kyushu, about TADF and hyperfluorescence for high performance OLED at IPCMS, @cnrs.fr Strasbourg.

Looking forward to discuss with #GittiFrei in CNRS Strasbourg! Thanks for visiting us!

🙌 See you tomorrow at #MATUS25 @nanoge_conf to delve into #SustainableDevelopment topics!

👉 Follow the MATSUS25 signal to access the conference venue, we are looking forward to seeing you!

🗓️Discover the full weekly programe: https://www.nanoge.org/MATSUSSpring25/program/schedule-at-glanc

🚨To anyone feeling unwell during their academic journey. Science is supposed to be humanitarian, open, diverse and enriching! Alert, get support, make a report... Never give up!
Today at the #GlobalWomenBreakfast at University of Strasbourg.

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OEC...

advanced.onlinelibrary.wiley.com/doi/abs/10.1...

Excellent article from Wouter Maes's group (UHasselt, Belgium). Check it out!

@chloedindault.bsky.social from IMS Bordeaux shared encouraging results on how to grow crops under organic PV at #SPIC25 Paris today. #Agrivoltaics👌🌱

Thank you Chloé. I appreciated your talk about agrivoltaics as well!

Pleasure is mine! Thanks for the top-class research

Interesting dye structures for H2 generation presented at #SPIC25 by #ClaireBourguignon from #CyrilAumaitre and #RenaudDemadrille group (SyMMES, CEA, Grenoble). Go check her recent paper here: doi.org/10.1002/aesr...

#SaidOummouch PhD in #MartinBrinkmann 's group presented how post-deposition treatment of PBTTT can enhance the ability of the film to dope and reach ultra-high conductivity over 10'000 S cm-1 after high-temperature rubbing. Check his recent work here: onlinelibrary.wiley.com/doi/full/10....

Bravo à tous les doctorant.e.s de l'ICPEES inscrits en 1ère année de thèse qui ont participé au challenge "ma thèse en 180s" pour leurs présentations passionnantes.
Félicitations aux 3 gagnant.e.s, Amandine Brige (1ère), Antoine Borg (second), et Marvette Leriche Koguia Metchop (3ème)