The FEMS Master Thesis Award was held during the FEMS Junior EUROMAT 2024, in Manchester, from the 15th to the 18th of July. On the 17th, Lluís gave a presentation of 10 minutes, followed by a 5 minutes section of questions by a tribunal.

Lluís holds a dual degree in Physics and Chemistry from the Autonomous University of Barcelona (UAB). For his Nanoscience and Nanotechnology Master's thesis at UAB, conducted at the Institute of Materials Science of Barcelona (ICMAB-CSIC), he developed near-infrared phototransistors for flexible health monitoring applications using photosensitive organic semiconductor materials. He is currently a 'La Caixa Foundation' doctoral fellow at ICMAB under Prof Marta Mas-Torrent and Dr Carme Martínez-Domingo working on organic photodetectors, while also pursuing a Master's in Quantum Science and Technology at the University of Barcelona (UB). He enjoys teaching, outreach activities, nature, mountain hiking, and is learning to dance electro swing.

Organic Field-Effect Transistors for Near-Infrared Light Detection
In this work, Organic Field-Effect Transistors (OFETs) have been fabricated and studied as Near-Infrared (NIR) photodetectors using a solution-processed Organic Semiconductor (OSC), named Y6. The study has shown the importance of thermal annealing in achieving crystallinity of the OSC, obtaining a high n-type field -effect mobility of 0.1 cm²V^-1s^-1 after annealing at 170C.The Y6 devices have also detected NIR light at 840nm, presenting a maximum photoresponsivity of 1.25 AW^-1 at low incident optical powers. In summary, this work offers a method to develop NIR phototransistors by using low-cost fabrication techniques with roll-to-roll and large-area fabrication.

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Meet the 2024 FEMS Master Thesis Award finalists | FEMS - The Federation of European Materials Societies