Dr Flurin Eisner
Lecturer in Green Energy and Sustainable Engineering
School of Engineering and Materials Science
Queen Mary University of London
Queen Mary University of London
Research
Photovoltaics, Organic Semiconductors, Photoelectrochemistry, Sustainable Energy, Light conversion, Spectroscopy
Interests
My main area of research is on organic-semiconductor based solar energy conversion devices, which can be dissolved in solution to form a solar ink that can be easily painted on substrates like glass or PET; for example to make low-cost and lightweight solar panels. My work involves trying to gain an increased understanding of the underlying physics of how they work in order to find ways to improve the performance of such materials and devices. My other interests also include other renewable technologies, such as producing green hydrogen by solar-powered water splitting.Recent research highlights include:
1. Dabozci, Eisner* et al., "Enhanced Solar Water Oxidation and Unassisted Water Splitting Using Graphite Protected Bulk Heterojunction Organic Photoactive Layers". Nature Energy, Just Accepted (2024).
2. Royakkers, Eisner* et al., "Synthesis of model heterojunction interfaces reveals molecular-configuration dependent photoinduced charge transfer". Nature Chemistry 16, 1453-1461 (2024).
3.Müller, Eisner* et al., "Charge-Transfer State Dissociation Efficiency Can Limit Free Charge Generation in Low-Offset Organic Solar Cells." ACS Energy Letters 8, 3387-3397 (2023).
4. Eisner* et al., "Emissive Charge-Transfer States at Hybrid Inorganic/Organic Heterojunctions Enable Low Non-Radiative Recombination and High-Performance Photodetectors". Advanced Materials 34, 2104654 (2022).
Publications
Publications of specific relevance to the Centre for Sustainable Engineering2024
Yu H, Marks A, Tuladhar SM, Siemons N, Anderson I, Bidinger S, Keene ST, Quill TJ, Wu R, Gough O, Wu G, Eisner F, Salleo A, Rivnay J, Malliaras GG, Barnes PRF, McCulloch I and Nelson J (2024). The Influence of Alkyl Spacers and Molecular Weight on the Charge Transport and Storage Properties of Oxy‐Bithiophene‐Based Conjugated Polymers. Angewandte Chemie International Edition, Wiley 23-12-2024
Royakkers J, Yang H, Gillett AJ, Eisner F, Ghosh P, Congrave DG, Azzouzi M, Andaji-Garmaroudi Z, Leventis A, Rao A, Frost JM, Nelson J and Bronstein H (2024). Synthesis of model heterojunction interfaces reveals molecular-configuration-dependent photoinduced charge transfer. Nature Chemistry, Springer Nature vol. 16 (9), 1453-1461. 20-08-2024
2023
Hou X, Coker JF, Yan J, Shi X, Azzouzi M, Eisner FD, McGettrick JD, Tuladhar SM, Abrahams I, Frost JM, Li Z, Dennis TJS and Nelson J (2023). Structure–Property Relationships for the Electronic Applications of Bis-Adduct Isomers of Phenyl‑C61 Butyric Acid Methyl Ester. Chemistry of Materials, American Chemical Society (ACS) vol. 36 (1), 425-438. 28-12-2023
Xu C, Miao K, Eisner F, Liu G, Feng C, Su H, Lan L, He Z and Nelson J (2023). Dilution‐Induced Self‐Assembly PEDOT:PSS Interlayer Enables Low‐Noise Near‐Infrared Organic Photodetectors for High‐Contrast Imaging. Advanced Optical Materials, Wiley vol. 12 (14) 07-12-2023
Daboczi M, Eisner F, Cui J, Luke J, Kim J-S, Nelson J and Eslava S (2023). Days-Long Stable Halide Perovskite and Organic Semiconductor Photoanodes for Solar Water Splitting. Proceedings of the MATSUS Fall 2023 Conference. 18-07-2023
Eisner F, Tam B and Nelson J (2023). An optical-electronic model of photovoltaic-coupled photoelectrochemical water splitting for maximising solar-to-hydrogen efficiency in devices. Proceedings of the MATSUS Fall 2023 Conference. 18-07-2023
Müller JS, Comí M, Eisner F, Azzouzi M, Ruiz DH, Yan J, Attar SS, Al-Hashimi M and Nelson J (2023). Charge-Transfer State Dissociation Efficiency Can Limit Free Charge Generation in Low-Offset Organic Solar Cells. ACS Energy Letters, American Chemical Society (ACS) vol. 8 (8), 3387-3397. 14-07-2023
Panidi J, Mazzolini E, Eisner F, Fu Y, Furlan F, Qiao Z, Rimmele M, Li Z, Lu X, Nelson J, Durrant JR, Heeney M and Gasparini N (2023). Biorenewable Solvents for High-Performance Organic Solar Cells. ACS Energy Letters, American Chemical Society (ACS) vol. 8 (7), 3038-3047. 16-06-2023
Eisner F, Azzouzi M, Yuan SW and Nelson J (2023). Field Dependent Exciton Dissociation and Charge Generation in Non-Fullerene Acceptors. Proceedings of the International Conference on Hybrid and Organic Photovoltaics. 30-03-2023
2022
Kafourou P, Qiao Z, Tóth M, Aniés F, Eisner F, Gasparini N and Heeney M (2022). Low Dark Current Organic Photodetectors Utilizing Highly Cyanated Non-fullerene Acceptors. ACS Applied Materials & Interfaces, American Chemical Society (ACS) vol. 14 (34), 39141-39148. 16-08-2022
Azzouzi M, Nelson J, Hou X, Yan J, Eisner F and Li Z (2022). Chemical structure-property relationships in organic photovoltaics and their impact on device stability. Proceedings of the Materials for Sustainable Development Conference (MAT-SUS). 11-07-2022
Nelson J, Eisner F, Azzouzi M, Yan J, Tam B, Sandwell P and Winchester B (2022). Modelling of materials, devices and systems to optimise integrated photovoltaic applications. Proceedings of the Materials for Sustainable Development Conference (MAT-SUS). 11-07-2022
Li Z (2022). Relationship between molecular properties and degradation mechanisms of organic solar cells based on bis-adducts of phenyl-C61 butyric acid methyl ester. Journal of Materials Chemistry C Materials for optical and electronic devices, Royal Society of Chemistry 25-04-2022
Nelson J, Azzouzi M, Eisner F, Rezasoltani E and Yan J (2022). Luminescence as a probe of energetics, microstructure and charge dynamics at molecular heterojunctions. Proceedings of the nanoGe Spring Meeting 2022. 07-02-2022
Yan J, Rodríguez-Martínez X, Pearce D, Douglas H, Bili D, Azzouzi M, Eisner F, Virbule A, Rezasoltani E, Belova V, Dörling B, Few S, Szumska AA, Hou X, Zhang G, Yip H-L, Campoy-Quiles M and Nelson J (2022). Identifying structure–absorption relationships and predicting absorption strength of non-fullerene acceptors for organic photovoltaics. Energy & Environmental Science, Royal Society of Chemistry (RSC) vol. 15 (7), 2958-2973. 01-01-2022
Azzouzi M, Gallop NP, Eisner F, Yan J, Zheng X, Cha H, He Q, Fei Z, Heeney M, Bakulin AA and Nelson J (2022). Reconciling models of interfacial state kinetics and device performance in organic solar cells: impact of the energy offsets on the power conversion efficiency. Energy & Environmental Science, Royal Society of Chemistry (RSC) vol. 15 (3), 1256-1270. 01-01-2022
2021
Kafourou P, Nugraha MI, Nikitaras A, Tan L, Firdaus Y, Aniés F, Eisner F, Ding B, Wenzel J, Holicky M, Tsetseris L, Anthopoulos TD and Heeney M (2021). Near-IR Absorbing Molecular Semiconductors Incorporating Cyanated Benzothiadiazole Acceptors for High-Performance Semitransparent n‑Type Organic Field-Effect Transistors. ACS Materials Letters, American Chemical Society (ACS) vol. 4 (1), 165-174. 17-12-2021
Eisner F, Tam B, Belova V, Ow W, Yan J, Azzouzi M, Kafizas A, Campoy-Quiles M, Hankin A and Nelson J (2021). Color-tunable hybrid heterojunctions as semi-transparent photovoltaic windows for photoelectrochemical water splitting. Cell Reports Physical Science, Elsevier vol. 2 (12) 01-12-2021
Eisner F, Foot G, Yan J, Azzouzi M, Georgiadou DG, Sit WY, Firdaus Y, Zhang G, Lin Y, Yip H, Anthopoulos TD and Nelson J (2021). Emissive Charge‐Transfer States at Hybrid Inorganic/Organic Heterojunctions Enable Low Non‐Radiative Recombination and High‐Performance Photodetectors. Advanced Materials, Wiley vol. 34 (22) 05-10-2021
Ding B, Kim G, Kim Y, Eisner FD, Gutiérrez‐Fernández E, Martín J, Yoon M and Heeney M (2021). Influence of Backbone Curvature on the Organic Electrochemical Transistor Performance of Glycolated Donor–Acceptor Conjugated Polymers. Angewandte Chemie International Edition, Wiley vol. 60 (36), 19679-19684. 06-08-2021
Yan J, Rezasoltani E, Azzouzi M, Eisner F and Nelson J (2021). Influence of static disorder of charge transfer state on voltage loss in organic photovoltaics. Nature Communications, Springer Nature vol. 12 (1) 15-06-2021
Eisner F and Nelson J (2021). Barrierless charge generation at non-fullerene organic heterojunctions comes at a cost. Joule, Elsevier vol. 5 (6), 1319-1322. 01-06-2021
2020
Rezasoltani E, Guilbert AAY, Yan J, Rodríguez-Martínez X, Azzouzi M, Eisner F, Tuladhar SM, Hamid Z, Wadsworth A, McCulloch I, Campoy-Quiles M and Nelson J (2020). Correlating the Phase Behavior with the Device Performance in Binary Poly-3-hexylthiophene: Nonfullerene Acceptor Blend Using Optical Probes of the Microstructure. Chemistry of Materials, American Chemical Society (ACS) vol. 32 (19), 8294-8305. 02-09-2020
Kirmani AR, Eisner F, Mansour AE, Firdaus Y, Chaturvedi N, Seitkhan A, Nugraha MI, Yarali E, de Arquer FPG, Sargent EH, Anthopoulos TD and Amassian A (2020). Colloidal Quantum Dot Photovoltaics Using Ultrathin, Solution-Processed Bilayer In2O3/ZnO Electron Transport Layers with Improved Stability. ACS Applied Energy Materials, American Chemical Society (ACS) vol. 3 (6), 5135-5141. 28-05-2020
Eisner F, Azzouzi M and Nelson J (2020). Spectroscopic studies of transfer states and their impact on the open-circuit voltage and efficiency of organic solar cells (Conference Presentation). Organic Electronics and Photonics: Fundamentals and Devices II. 01-04-2020
Azzouzi M, Calado P, Telford AM, Eisner F, Hou X, Kirchartz T, Barnes PRF and Nelson J (2020). Overcoming the Limitations of Transient Photovoltage Measurements for Studying Recombination in Organic Solar Cells. Solar RRL, Wiley vol. 4 (5) 20-03-2020
He Q, Shahid M, Jiao X, Gann E, Eisner FD, Wu T, Fei Z, Anthopoulos TD, McNeill CR and Heeney M (2020). Crucial Role of Fluorine in Fully Alkylated Ladder-Type Carbazole-Based Nonfullerene Organic Solar Cells. ACS Applied Materials & Interfaces, American Chemical Society (ACS) vol. 12 (8), 9555-9562. 30-01-2020
He Q, Eisner FD, Pearce D, Hodsden T, Rezasoltani E, Medranda D, Fei Z, Nelson J and Heeney M (2020). Ring fusion in tetrathienylethene cored perylene diimide tetramers affords acceptors with strong and broad absorption in the near-UV to visible region. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) vol. 8 (48), 17237-17244. 01-01-2020
2019
He Q, Shahid M, Wu J, Jiao X, Eisner FD, Hodsden T, Fei Z, Anthopoulos TD, McNeill CR, Durrant JR and Heeney M (2019). Fused Cyclopentadithienothiophene Acceptor Enables Ultrahigh Short‐Circuit Current and High Efficiency >11% in As‐Cast Organic Solar Cells. Advanced Functional Materials, Wiley vol. 29 (40) 08-08-2019
Eisner F, Azzouzi M, Fei Z, Heeney M and Nelson J (2019). Hybridization of Local Exciton and Charge-Transfer States Reduces Nonradiative Voltage Losses in Organic Solar Cells. Proceedings of the nanoGe Fall Meeting19. 18-07-2019
Nelson J, Yan J, Rezasoltani E, Azzouzi M, Eisner FD and Guilbert AAY (2019). Relating Microstructure Behaviour to Charge Transfer States Properties and Energy Losses in Organic Bulk Heterojunction Solar Cells. Proceedings of the nanoGe Fall Meeting19. 18-07-2019
Eisner FD, Azzouzi M, Fei Z, HOU X, Anthopoulos TD, DENNIS TJS, Heeney M and Nelson J (2019). Hybridization of Local Exciton and Charge-Transfer States Reduces Non-Radiative Voltage Losses in Organic Solar Cells. Journal of the American Chemical Society, American Chemical Society 18-03-2019
Sun G, Shahid M, Fei Z, Xu S, Eisner FD, Anthopoulos TD, McLachlan MA and Heeney M (2019). Correction: Highly-efficient semi-transparent organic solar cells utilising non-fullerene acceptors with optimised multilayer MoO 3 /Ag/MoO 3 electrodes. Materials Chemistry Frontiers, Royal Society of Chemistry (RSC) vol. 3 (5), 955-955. 01-01-2019
Sun G, Shahid M, Fei Z, Xu S, Eisner FD, Anthopolous TD, McLachlan MA and Heeney M (2019). Highly-efficient semi-transparent organic solar cells utilising non-fullerene acceptors with optimised multilayer MoO 3 /Ag/MoO 3 electrodes. Materials Chemistry Frontiers, Royal Society of Chemistry (RSC) vol. 3 (3), 450-455. 01-01-2019
2018
Karuthedath S, Gorenflot J, Firdaus Y, Sit W, Eisner F, Seitkhan A, Ravva MK, Anthopoulos TD and Laquai F (2018). Charge and Triplet Exciton Generation in Neat PC70BM Films and Hybrid CuSCN:PC70BM Solar Cells. Advanced Energy Materials, Wiley vol. 9 (1) 08-11-2018
Du T, Burgess CH, Lin C, Eisner F, Kim J, Xu S, Kang H, Durrant JR and McLachlan MA (2018). Probing and Controlling Intragrain Crystallinity for Improved Low Temperature–Processed Perovskite Solar Cells. Advanced Functional Materials, Wiley vol. 28 (51) 04-11-2018
Gallop NP, Zheng X, Eisner F, Azzouzi M, Fei Z, Heeney M, Nelson J and Bakulin AA (2018). Understanding the photophysics of efficient non-fullerene acceptors (Conference Presentation). Physical Chemistry of Semiconductor Materials and Interfaces XVII. 07-09-2018
Wijeyasinghe N, Eisner F, Tsetseris L, Lin Y, Seitkhan A, Li J, Yan F, Solomeshch O, Tessler N, Patsalas P and Anthopoulos TD (2018). p‐Doping of Copper(I) Thiocyanate (CuSCN) Hole‐Transport Layers for High‐Performance Transistors and Organic Solar Cells. Advanced Functional Materials, Wiley vol. 28 (31) 03-06-2018
Firdaus Y, Seitkhan A, Eisner F, Sit W, Kan Z, Wehbe N, Balawi AH, Yengel E, Karuthedath S, Laquai F and Anthopoulos TD (2018). Charge Photogeneration and Recombination in Mesostructured CuSCN‐Nanowire/PC70BM Solar Cells. Solar RRL, Wiley vol. 2 (8) 02-05-2018
Eisner F, Seitkhan A, Han Y, Khim D, Yengel E, Kirmani AR, Xu J, de Arquer FPG, Sargent EH, Amassian A, Fei Z, Heeney M and Anthopoulos TD (2018). Solution‐Processed In2O3/ZnO Heterojunction Electron Transport Layers for Efficient Organic Bulk Heterojunction and Inorganic Colloidal Quantum‐Dot Solar Cells. Solar RRL, Wiley vol. 2 (7) 25-04-2018
Fei Z, Eisner FD, Jiao X, Azzouzi M, Röhr JA, Han Y, Shahid M, Chesman ASR, Easton CD, McNeill CR, Anthopoulos TD, Nelson J and Heeney M (2018). An Alkylated Indacenodithieno[3,2‐b]thiophene‐Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses. Advanced Materials, Wiley vol. 30 (13) 01-03-2018
Sit W, Eisner FD, Lin Y, Firdaus Y, Seitkhan A, Balawi AH, Laquai F, Burgess CH, McLachlan MA, Volonakis G, Giustino F and Anthopoulos TD (2018). High‐Efficiency Fullerene Solar Cells Enabled by a Spontaneously Formed Mesostructured CuSCN‐Nanowire Heterointerface. Advanced Science, Wiley vol. 5 (4) 02-02-2018
Fei Z, Eisner FD, Jiao X, Azzouzi M, Röhr JA, Han Y, Shahid M, Chesman ASR, Easton CD, McNeill CR, Anthopoulos TD, Nelson J and Heeney M (2018). An Alkylated Indacenodithieno[3,2‐b]thiophene‐Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses. Advanced Materials, Wiley vol. 30 (8) 09-01-2018
2017
Wijeyasinghe N, Regoutz A, Eisner F, Du T, Tsetseris L, Lin Y, Faber H, Pattanasattayavong P, Li J, Yan F, McLachlan MA, Payne DJ, Heeney M and Anthopoulos TD (2017). Copper(I) Thiocyanate (CuSCN) Hole‐Transport Layers Processed from Aqueous Precursor Solutions and Their Application in Thin‐Film Transistors and Highly Efficient Organic and Organometal Halide Perovskite Solar Cells. Advanced Functional Materials, Wiley vol. 27 (35) 28-07-2017
2014
Zhang Q, Celorrio V, Bradley K, Eisner F, Cherns D, Yan W and Fermín DJ (2014). Density of Deep Trap States in Oriented TiO2 Nanotube Arrays. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 118 (31), 18207-18213. 18-07-2014
Grants
Grants of specific relevance to the Centre for Sustainable EngineeringEnabling real-time and ultra-sensitive measurement of photo(electro)chemical reaction products through Photoelectrochemical Mass-SpectrometryFlurin Eisner
£19,932 Royal Society (01-10-2024 - 30-09-2025)