Last week the group had the pleasure of welcoming Professor Ji-Seon Kim from University of Oxford. She presented the colloquium titled Fascinating Molecular Nature of Organic Semiconductors, where she delved into their different molecular properties and how these can be modified.

Last week some members of the group attended the SU2P symposium in Glasgow. Ifor, Olga and Masato can be seen attending the conference dinner. While in Glasgow, they took the opportunity to visit Dr. Gordon Hedley’s (group alumni) lab.

Congratulations to the authors of "A trade‐off between efficiency and stability in a class of sky‐blue organic light‐emitting diodes" just published in FlexMat. This work was done in collaboration with @ezc-group.bsky.social, and Fluxim AG in Switzerland. DOI: doi.org/10.1002%2Ffl...

Congratulations to Dr Thomas Sayner for completing his PhD viva earlier this week! After the viva there were some celebrations and parting gifts from the group. We wish him all the best with his new position in Spain!

Last Friday some members of the group enjoyed a well deserved break from work to catch up over some drinks. Due to the recent closure of St Andrews' Brewdog, the group's social was hosted at Brewco, followed by a hearty dinner at Tulsi!

The 27th International Conference on Science and Technology of Synthetic Electronic Materials (ICSM 2026) is still accepting abstracts, with the submission deadline being extended to March 17th. We encourage applications to ensure a strong and diverse scientific program.

Congratulations to Dr Marianna Leite De Avellar on successfully passing her PhD Viva!

Last week we were pleased to host St Andrews alumni Sir Professor Michael Berry who gave an interesting and insightful colloquium "A plurality of optical singularities: intensity, phase, polarisation".

Ifor attended Photonics West in San Francisco last week, the world's largest photonics conference. He gave a talk on the groups advancements on Visible Light Communication, some of which are linked to the HISOPE project.

Members of the group enjoyed the Scottish University Physics Alliance (SUPA) Energy Theme meeting and a Solar Power course, followed by dinner with lecturers. We had the pleasure of welcoming Prof. David Cohen, Dr Stephen Reynolds andDr Scott Doyle for guest lectures.

Congratulations to Dr Aswin Sasi for completing his PhD viva for his thesis 'Let there be light: Development and modelling of a novel illumination system to improve light availability, biomass production and pigment yield in photobioreactors'.

Following another year of successful research the OSO group finished the year with a deep clean of the evaporator and their annual Christmas dinner celebration. Happy holidays everyone!

This week we have been pleased to welcome Dr Nagarjuna Puvvala and Chu-Hsiang (Allen) Hsu from National Taiwan University as part of our growing collaboration in organic semiconductor optoelectronic research.

Congratulations Dr Michele Duarte Tonet!

We are happy to welcome Olga Filippova to the group. She will be supervised by Prof Ifor Samuel and Prof Carlos Penedo, and her PhD research will focus on understanding the photophysical properties of conjugated polymer chains at the single-molecule level.

Congratulations to the authors of "Exploring the Impact of the Presence of 9,9′-Spirobifluorene Moieties on the Performance of Carbonyl-Based Multiresonant Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes" published in Advanced Optical Materials. DOI: doi.org/10.1002/adom....

We would like to congratulate Martin McLaren on receiving the IOP Technician Award. He received this award for his work as technical manager, overseeing operations of the Centre for Designer Quantum Materials since its inception. Congratulations Martin! www.iop.org/about/awards...

Yesterday the School of Physics and Astronomy held the Wilson Sibbett memorial symposium. The day featured several talks from Wilson's friends and colleagues who spoke movingly about his impact on their lives, research, and the field of ultrafast photonics.

Ifor receives the Thomas Young Prize Congratulations to Ifor on receiving the Thomas Young Prize for world-leading research into OLEDs, organic lasers and their applications in technology and medicine. This prize recognises that he has made distinguished contributions to the field of optics.

Last week's group coffee saw us welcoming two new members to the group, Masato Kato for his PhD and Dr Buddhika Karunathilaka as a Postdoctoral Fellow. Masato brought some green tea chocolates for everyone to enjoy!

This week we are very happy to welcome Dr Buddhika Karunathilaka to the group. He will be supervised by Prof Ifor Samuel and Prof Graham Turnbull, and his research will focus on developing organic lasers that operate under continuous-wave (CW) conditions.

This week we are pleased to welcome Masato Kato to the group. His PhD, supervised by Dr Jean-Charles Ribierre and Prof Ifor Samuel, will focus on researching Organic Hyperbolic Metamaterials for optoelectronic applications.

Ifor attended the Optical Probes meeting in Fukuoka last week and gave an invited talk. Also attending were four former OSC members who now lead their own research groups (Prof John Lupton, Prof P. Rajamalli, Dr Gordon Hedley and Prof Paloma dos Santos).

This week we are pleased to welcome Yamini Sharma to the group. She is visiting us from the IPCMS in Strasbourg. During her one month stay she will be researching the photophysics of TADF materials.

Today is international day in the school of Physics and Astronomy. It is a great opportunity to celebrate the diversity in the OSC that helps make our research world class.

Congratulations to the authors of the paper “OLED illuminated metasurfaces for holographic image projection” which has just been published with Light: Science & Applications. DOI: doi.org/10.1038/s413...

We are happy to welcome Chico Paulics Bresler to the group for his PhD on the HISOPE project, researching fast organic optoelectronic materials and devices. He is jointly supervised by Prof Ifor Samuel and Prof Graham Turnbull.

Congratulations to Jingxiang, Dongyang, & Yan for their paper accepted in @angewandtechemie.bsky.social ,(doi.org/10.1002/anie...) work in collab with Ifor Samuel's group and @jeannecrassousiscr.bsky.social ⚗️🧪@standrewschem.bsky.social @standrewsosc.bsky.social #TADFSolutions

This week we are pleased to welcome Shintaro Kohata to the group. He is visiting us from the Adachi lab at Kyushu University. During his two month stay he will be investigating photophysics in novel TADF systems.

Today we celebrated Ifor's birthday with some cake and pastries. Happy birthday Ifor, we hope you enjoy the presents!

Last month, Aswin attended the Algal BBB conference in Arizona, US. He gave a talk on 'Unlocking the optimal wavelength for different growth phases for Arthrospira platensis in a cylindrical airlift photobioreactor'.

Congratulations to Liam, Kou, and our collaborators at the University of Cambridge, led by Harald Haas for the paper "Visible light communication using thermally activated delayed fluorescent OLEDs". DOI: lnkd.in/er_6ZuiQ

Recently Sagarika attended the International Meeting on Chemical sensors in Freiburg, Germany where she presented some of her recent work.

Working with the team of Prof Harald Haas we have demonstrated a record communication rate in OLEDs. The new paper "High-speed organic light-emitting diodes based on dinaphthylperylene achieving 4-Gbps communication" published with Advanced Photonics. DOI: doi.org/10.1117/1.AP...

This week Ifor gave presented work on high brightness OLEDs and lasers at the Excited State Processes conference in Santa Fe, New Mexico. Former group member Prof John Lupton spoke directly after him.

Yesterday OSC members had the opportunity to attend an excellent seminar "Digital Discovery for Organic Electronics" by Prof. Alessandro Troisi where he was presented with his RSC Tilden Prize for Chemistry medal. @ezc-group.bsky.social

We are pleased to announce that our paper "Enabling the Next-Generation Network of Networks" has now been published with IEEE. We have worked closely on this with Prof Harald Haas and his team at the LiFi Research and Development Centre at the University of Cambridge. DOI: doi.org/10.1109/MVT....

Last week, Kou attended the SID Display Week 2025 and gave an invited talk on our work on electrically driven organic lasers. It was an exciting opportunity to learn about the latest developments in OLED research from both academic and industry researchers. Photos courtesy of Mr. Shintaro Nomura.

Ifor, Kou and Graham are visiting the National Taiwan University to discuss joint research and Ifor presented some of the latest work of the OSC.

Congratulations to the authors of "Merging Boron and Carbonyl based MR-TADF Emitter Designs to Achieve High Performance Pure Blue OLEDs". The paper ranked within the top 10% of most-viewed papers published by @wiley.com @angewandtechemie.bsky.social International Edition in 2023. #TopViewedArticle

🥳Congrats to Abhi for his paper accepted in @jmaterchem.bsky.social (JMCC) on red-to-NIR donor-acceptor #tadf emitters and #oleds. @standrewschem.bsky.social

Finally, after more than 4 years of work, our review on #tadf materials is out!!!. The Golden Age of Thermally Activated Delayed Fluorescence Materials: Design and Exploitation | Chemical Reviews pubs.acs.org/doi/10.1021/.... @StAndrewsChem @StAndrewsOsc @chemguyeli.bsky.social

Shoutout to our Angstrom evaporator users and cleanroom techs for teaming up on a quick, thorough glove box clean! Awesome work — efficient, collaborative, and spotless!

The OSC is now on Bluesky! We are a collaboration of interdisciplinary research groups at the University of St Andrews. We study organic semiconductor materials from their synthesis to device applications. Find out more about us on our website: osc.wp.st-andrews.ac.uk