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F. Molina-Lopez

@fmolinalopezlab.bsky.social
40 followers 68 following 58 posts

Associate Professor Materials Engineering @KU Leuven; ERC grantee; Formerly Hardware Engineer @Apple, Postdoc @Stanford, PhD @EPFL, Major @University of Granada. Printed hybrid organic-inorganic stretchable multifunctional materials.

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F. Molina-Lopez @fmolinalopezlab.bsky.social · 31/08/2026
🔥We are hiring🔥! Are you a recent PhD graduate with strong experience in thermoelectrics 🔥⚡❄️, and looking for the next step in your career 🚀? Join us to work on laser-printed metal chalcogenide flexible thermoelectrics. Apply by Sept 30 👇! www.kuleuven.be/personeel/jo...
kuleuven.be
Laser-printed flexible sustainable thermoelectrics (Postdoc position)
Fabrication and characterization of flexible, high-performance thermoelectric energy harvesters and coolers via laser printing. Sustainable materials will be investigated as an alternative to traditio...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 17/08/2026
2/🧵 Even better, it showed "universal" character, performing very well on many different polymers. Thanks to the first authors, Juhyung Park and Shubhradit Guchait, and our collaborators @kuleuvenuniversity.bsky.social @fwovlaanderen.bsky.social, @erc.europa.eu @teconversion.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 17/08/2026
1/🧵Our latest paper is out @advancedportfolio.bsky.social TAB-2TFSI is a wonderful yet overlooked dopant for polymer thermoelectrics. It not only provided the best performance for P3HT, but it also showed better stability than other common dopants. advanced.onlinelibrary.wiley.com/doi/10.1002/...
advanced.onlinelibrary.wiley.com
Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics
TAB–2TFSI enables efficient ion-pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic ...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 07/08/2026
🧵2/2 Unleashing the Potential of Raman Spectroscopy to Estimate PEDOT:PSS Doping Level and Crystalline Morphology - Yu - 2026 - Advanced Science - Wiley Online Library advanced.onlinelibrary.wiley.com/doi/full/10.... @erc.europa.eu @kuleuvenuniversity.bsky.social @fwovlaanderen.bsky.social
advanced.onlinelibrary.wiley.com
Unleashing the Potential of Raman Spectroscopy to Estimate PEDOT:PSS Doping Level and Crystalline Morphology
Herein, the correlational changes of each PEDOT Raman peak to morphology and doping level are identified. Two equations are derived to estimate PEDOT π–π spacing and doping level from Raman spectra (....
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 07/08/2026
🧵1/2 Are you working with PEDOT:PSS and want to know more about its structure and doping level with just 1-minute measurement? Check out one of our latest papers:
advanced.onlinelibrary.wiley.com
Unleashing the Potential of Raman Spectroscopy to Estimate PEDOT:PSS Doping Level and Crystalline Morphology
Herein, the correlational changes of each PEDOT Raman peak to morphology and doping level are identified. Two equations are derived to estimate PEDOT π–π spacing and doping level from Raman spectra (....
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 08/06/2026
3/🧵All of this with attention to disassembly and recycling to reduce environmental impact. As shown below, the p- and n-type materials can be easily separated. @kuleuvenuniversity.bsky.social @erc.europa.eu , @fwovlaanderen.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 08/06/2026
2/🧵A device installed on the hot water pipe running into his office wall heater, we could have already powered a few sensors for the IoT. Moreover, he demonstrated on-demand cooling ❄️ below room temperature!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 08/06/2026
1/🧵Happy to share our latest work on laser-printed flexible inorganic thermoelectrics (TEs) ⚡️🔥, published in @nature.com npj Flexible Electronics: rdcu.be/fm99C
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 23/03/2026
We kicked off MatSus 2026 in Barcelona! I will be presenting our recent work on stable doping of p-type thermoelectric polymers on Thursday pm (symposium B3)! @kuleuvenuniversity.bsky.social @erc.europa.eu @nanoge.org @teconversion.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 07/03/2026
Proud of my great research group! This year is a transition year with many PhDs graduating and the typical postdoc turnover. I hope funding will allow us to keep the science going! @kuleuvenuniversity.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 03/03/2026
Happy to share the fruit of a collaboration between @kuleuvenuniversity.bsky.social and @iitalk.bsky.social! @erc.europa.eu Printed Organic Thermoelectric Generators: Progress and Challenges Towards Efficient Energy Harvesting - Adv. Mater. Tech. advanced.onlinelibrary.wiley.com/doi/full/10....
advanced.onlinelibrary.wiley.com
Printed Organic Thermoelectric Generators: Progress and Challenges Towards Efficient Energy Harvesting
Printed organic thermoelectric generators (OTEGs) enable flexible and sustainable energy harvesting from low-grade heat. This Perspective critically assesses recent advances in printable thermoelectr...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 18/01/2026
The final program of the MATSUS26 conference is out!📢. I will be presenting our latest work on doped conjugated polymers for thermoelectrics, along with top-researcher colleagues. @kuleuvenuniversity.bsky.social @erc.europa.eu
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 14/01/2026
Today, I had the pleasure of sharing the role of external jury member with Mariano Campoy-Quiles during the PhD defense of Bram Bijnens from Uhasselt in organic bolometers for infrared detection. Congratulations to the new doctor and thanks to Koen Vandewal for the invitation.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 12/12/2025
Today we went for bowling and dinner afterwards. It felt so good to see the group enjoying some free time together out of the lab.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 08/12/2025
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 08/12/2025
Congratulations to Dr Hasan Baysal! The 3rd graduate of the group and our expert in 3D printing and PEDOT:PSS aerogels! Thanks to the jury members and the funding agencies . @giorgiomattana.bsky.social @erc.europa.eu @kuleuvenuniversity.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 07/12/2025
Always great to meet my friend and colleague @giorgiomattana.bsky.social from @itodys.bsky.social who came to @kuleuvenuniversity.bsky.social to serve as jury member for the PhD defense of Hasan Baysal. We are enjoying Belgium beer diversity.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 27/11/2025
Congrats to Bokai Zhang, the second PhD student to graduate from the group. He worked on brush-printed organic thermoelectrics. The first PhD graduates are instrumental in building the lab, both literally and culturally. Thank you! @kuleuvenuniversity.bsky.social; @erc.europa.eu
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/11/2025
🧵4/5 @erc.europa.eu, @kuleuvenuniversity.bsky.social, @teconversion.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/11/2025
🧵4/5 This work is a step forward in the co-integration of miniaturized TE harvesters and micro-chips. Although we demonstrated only energy harvesting (for now), this technology holds potential also for chip cooling. Thanks, Milad Shojaeian and Prof. M. Kraft, for the collaboration.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/11/2025
🧵3/5 Taking advantage of the built-in stress generated during sputtering deposition, we can move from CMOS-compatible 2D structures to elevated 3D structures, which are convenient for efficient heat harvesting/cooling as they enable a high temperature difference across the device.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/11/2025
🧵2/5 Despite their high conductivity and power factor, metals are usually neglected as thermoelectric (TE) energy harvesters and coolers due to their high thermal conductivity. In this work, we demonstrated that metal parts can be engineered to balance electrical & thermal resistance.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/11/2025
🧵1/5 I am happy to share our latest collaborative work in Nano Energy: "Stress-engineered 3D thin-film micro-thermoelectrics for integrated energy harvesting and thermal management". You can access for free for 50 days at: www.sciencedirect.com/science/arti...
sciencedirect.com
Stress-engineered 3D thin-film micro-thermoelectrics for integrated energy harvesting and thermal management
This study presents a mechanical self-assembly strategy to fabricate high-performance, CMOS-compatible microscale thermoelectric devices (μTEDs). Plan…
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 05/11/2025
Today we had the pleasure to welcome Prof Zheng Chen at @kuleuvenuniversity.bsky.social. He shared with us his impressive research at @ucsandiego.bsky.social in battery regeneration process.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 27/10/2025
Last week we hosted @kuleuvenuniversity.bsky.social and IMEC a Korean delegation from Postech EE. Thank you Prof. Jiwon Lee, @jangenoe.bsky.social, and the sponsor for the organization. I hope great collaborations come from this meeting!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 16/10/2025
We'd love to power small wearables with light! Please check our work on inkjet-printed organic photovoltaic cells – using the example of PM6:Y6 - published in Materials Advances pubs.rsc.org/en/content/a... Thank you, @erc.europa.eu & @fwovlaanderen.bsky.social @kuleuvenuniversity.bsky.social
pubs.rsc.org
Process and design guidelines for inkjet-printed organic photovoltaic cells – using the example of PM6:Y6
Inkjet printing (IJP) is a promising non-contact and digital technique for the precise deposition and patterning of functional materials on reduced areas, enabling versatile applications in both indoo...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/09/2025
Between talk and talk a (fast) walk! Another way to visit Cambridge #ECME2025
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 25/09/2025
In action!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 25/09/2025
Seems our approach must interest some 3D printing industries. Thanks for the coverage! @kuleuvenuniversity.bsky.social @erc.europa.eu @3dprintingnews.bsky.social 3dprintingindustry.com/news/ku-leuv...
3dprintingindustry.com
KU Leuven researchers 3D print stretchable PEDOT:PSS aerogels for wearable thermoelectrics - 3D Printing Industry
A team from KU Leuven,a leading Belgian research university, has demonstrated the first omnidirectional 3D printing of PEDOT:PSS aerogels, enabling stretchable interconnects and high-aspect-ratio ther...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 24/09/2025
Enjoying #ECME2025 at @universitypress.cambridge.org with Tanmay (PhD). We will share a poster and a talk about inkjet printed organic PVs and organic thermoelectrics being developed in our group @kuleuvenuniversity.bsky.social. @erc.europa.eu @fwovlaanderen.bsky.social @teconversion.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 23/09/2025
1st reunion of the Bao group Alumni yesterday in Zürich! It is great to catch up with such excellent scientists!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 22/09/2025
Thrilled to welcome Prof. Yang Yang’s research team from CAS to visit our labs at @kuleuvenuniversity.bsky.social and exchange research ideas. It was great to learn about deep sea exploration using flexible sensors in China. Quite impressive!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 19/09/2025
Grateful to my group member, Isidro Florenciano, for representing the group and @kuleuvenuniversity.bsky.social at the ECT25 conference in Nancy last week. He shared our latest results on laser-printed inorganic flexible thermoelectrics. @fwovlaanderen.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 18/09/2025
We hosted LIMNI Summer School – NanoFabMat2025 participants in our lab @kuleuvenuniversity.bsky.social ! Great energy and a chance to showcase our latest research. Proud of the team & grateful to the organizers for including us in the program. @erc.europa.eu ; @fwovlaanderen.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 11/09/2025
Keeping nice traditions. This year, we celebrate the 600th anniversary @kuleuvenuniversity.bsky.social with the University Trail. 10 km to discover the beautiful Arenberg campus, including going inside buildings! Here a team representing the Department of Materials Engineering.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 02/09/2025
Congratulations to Sachin and Nastasha on successfully defending their Master’s theses. Sachin worked on composites for wearable ultrasound devices, and Nastasha on inkjet-printed electrodes for organic PVs. Well done, both!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 19/07/2025
4/🧵Right after, a person told me quite roughly that I was riding without a ticket. I could not comprehend where that came from! I was trying to pay, but the driver would not give me a ticket, nor did he offer alternatives. He just closed the door and rode. I couldn't get off!!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 19/07/2025
3/🧵HOWEVER... on my last day to work, the bus ran out of paper to provide tickets! Unbelievable, right? While I was trying to understand from the driver how I could pay, he closed the doors and started riding. I was suddenly trapped!
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 19/07/2025
2/🧵I spent the last 2 wonderful weeks @upcite.bsky.social as a visiting Professor. I took the bus to go to work every day. It is written at the bus stop that you can buy the ticket from the driver, and so did I: cash only, a bit XX century, but OK...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 16/07/2025
Big shoutout to Jean and Bokai for presenting at #ICOE2025 in Coimbra 🇵🇹! They shared our latest work on: 👉 Substrate-induced crystallinity in brush-printed PEDOT:PSS for enhanced Seebeck 👉 Inkjet-printed electrodes enabling ITO-free OPVs for wearables & IoT @erc.europa.eu @fwovlaanderen.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 14/07/2025
I am happy to see my name in the list! In the project SUSTEG, we’ll try to make sustainable thermoelectric generators in the easiest possible manner @kuleuvenuniversity.bsky.social . Then the Swedish start-up EMickers will help us couple them with low-power systems. @erc.europa.eu
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 11/07/2025
@erc.europa.eu @fwovlaanderen.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 11/07/2025
Happy to share a bit of the group’s work about the often “forgotten” link between organic thermoelectric materials and skin-mounted devices with the @itodys.bsky.social group at the @upcite.bsky.social ⁦‪Thanks @giorgiomattana.bsky.social for hosting. @kuleuvenuniversity.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 05/07/2025
L’aventure française commence! I will be a guest professor @upcite.bsky.social for a couple of weeks to learn more about organic thermoelectrics. Thanks @giorgiomattana.bsky.social for the invitation! If you happen to be around, ping me! @teconversion.bsky.social @kuleuvenuniversity.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 01/07/2025
The FMolina-Lopez group enjoying the Materials Eng. summer event. Good food, drinks 🍺 and games make it easier to endure the 35 C at Leuven today. @kuleuvenuniversity.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 16/06/2025
🚀Join our team! We are seeking a strongly motivated PhD 🎓 candidate to investigate laser-printed flexible inorganic thermoelectrics ⚡️🔥. Apply via the link below before July 18th! @teconversion.bsky.social; Laser-printed flexible sustainable thermoelectrics (for PhD) www.kuleuven.be/personeel/jo...
kuleuven.be
Laser-printed flexible sustainable thermoelectrics (PhD position)
Develop flexible, high-performance thermoelectric energy harvesters and coolers via laser printing. Sustainable materials will be investigated as an alternative to traditional bismuth telluride. The f...
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 28/05/2025
Thank you to the organizers to put together such a nice symposium at E-MRS! ⁦
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/05/2025
Lots of interesting discussions until the end.
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 26/05/2025
We kick-started E-MRS Spring meeting with Altynay’s great talk! Tomorrow I will be sharing in Symp. G the our recent results on printed wearable thermoelectrics. Thomas will be presenting a poster on PEDOT:PSS Raman analysis. @erc.europa.eu @fwovlaanderen.bsky.social @thermoelectric.bsky.social
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F. Molina-Lopez @fmolinalopezlab.bsky.social · 22/05/2025
I just returned from a flash trip to DTU for a nice PhD thesis defense. Hope to come back with more time in the future. Congrats to the new doctor!
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