Imperial College London

ProfessorThomasAnthopoulos

Faculty of Natural SciencesDepartment of Physics

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 6669thomas.anthopoulos Website

 
 
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Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
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Location

 

1111Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
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506 results found

Sharma A, Faber H, AlGhamdi WS, Naphade D, Lin Y-H, Heeney M, Anthopoulos TDet al., 2024, Label-Free Metal-Oxide Transistor Biosensors for Metabolite Detection in Human Saliva., Adv Sci (Weinh)

Metabolites are essential molecules involved in various metabolic processes, and their deficiencies and excessive concentrations can trigger significant physiological consequences. The detection of multiple metabolites within a non-invasively collected biofluid could facilitate early prognosis and diagnosis of severe diseases. Here, a metal oxide heterojunction transistor (HJ-TFT) sensor is developed for the label-free, rapid detection of uric acid (UA) and 25(OH)Vitamin-D3 (Vit-D3) in human saliva. The HJ-TFTs utilize a solution-processed In2 O3 /ZnO channel functionalized with uricase enzyme and Vit-D3 antibody for the selective detection of UA and Vit-D3, respectively. The ultra-thin tri-channel architecture facilitates strong coupling between the electrons transported along the buried In2 O3 /ZnO heterointerface and the electrostatic perturbations caused by the interactions between the surface-immobilized bioreceptors and target analytes. The biosensors can detect a wide range of concentrations of UA (from 500 nm to 1000 µM) and Vit-D3 (from 100 pM to 120 nm) in human saliva within 60 s. Moreover, the biosensors exhibit good linearity with the physiological concentration of metabolites and limit of detections of ≈152 nm for UA and ≈7 pM for Vit-D3 in real saliva. The specificity is demonstrated against various interfering species, including other metabolites and proteins found in saliva, further showcasing its capabilities.

Journal article

Vasilopoulou M, Mohd Yusoff ARB, Chai Y, Kourtis MA, Matsushima T, Gasparini N, Du R, Gao F, Nazeeruddin MK, Anthopoulos TD, Noh YYet al., 2023, Neuromorphic computing based on halide perovskites, Nature Electronics, Vol: 6, Pages: 949-962

Neuromorphic computing requires electronic systems that can perform massively parallel computational tasks with low energy consumption. Such systems have traditionally been based on complementary metal–oxide–semiconductor circuits, but further advances in computational performance will probably require devices that can offer high-order complexity combined with area and energy efficiency. Halide perovskites can handle both ions and electronic charges, and could be used to create adaptive computing systems based on intrinsic device dynamics. The materials also offer exotic switching phenomena, providing opportunities for multimodal systems. Here we explore the development of neuromorphic hardware systems based on halide perovskites. We examine how devices based on these materials can serve as synapses and neurons, and can be used in neuromorphic computing networks. We also consider the challenges involved in developing practical perovskite neuromorphic systems, and highlight how these systems could augment and complement digital circuits.

Journal article

Panagiotopoulos A, Maksudov T, Kakavelakis G, Perrakis G, Alharbi EA, Kutsarov D, Isikgor FH, Alfihed S, Petridis K, Kafesaki M, Silva SRP, Anthopoulos TD, Graetzel Met al., 2023, A critical perspective for emerging ultra-thin solar cells with ultra-high power-per-weight outputs, Applied Physics Reviews, Vol: 10

Ultrathin, solution-processed emerging solar cells with high power-per-weight (PPW) outputs demonstrate unique potential for applications where low weight, high power output, and flexibility are indispensable. The following perspective explores the literature of emerging PVs and highlights the maximum reported PPW values of perovskite solar cells (PSCs) 29.4 W/g, organic solar cells (OSCs) 32.07 W/g, and quantum dot solar cells 15.02 W/g, respectively. The record PPW values of OSCs and PSCs are approximately one order of magnitude higher compared to their inorganic ultrathin solar cells counterparts (approximately 3.2 W/g for CIGS and a-Si). This consists emerging PVs, very attractive for a variety of applications where the PPW is the key parameter. In particular, both OSCs and PSCs can be implemented in different scenarios of applications (indoor and biocompatible applications for OSCs and outdoor and high-energy radiation conversion conditions for the PSCs) due to their unique optoelectronic and physiochemical properties. Finally, our theoretical optical and electrical simulation and optimization study for the most promising and well-suited PV technologies showed an impressive maximum realistic theoretical PPW limit of 74.3 and 93.7 W/g for PSCs and OSCs, respectively. Our finding in the theoretical section shows that the experimental results achieved in the literature of PSCs and OSCs toward high PPW outputs is not quite close to the theoretical maximum (35% and 40% of the theoretical maximum for OSCs and PSCs, respectively), and thus, more work needs to be done to further increase the experimental PPW output of these promising PV technologies.

Journal article

Sharma A, Faber H, Khosla A, Anthopoulos TDet al., 2023, 3D printed electrochemical devices for bio-chemical sensing: A review, Materials Science and Engineering R: Reports, Vol: 156, ISSN: 0927-796X

Portable, affordable, and miniaturized electrochemical sensors for point-of-care diagnostic devices represent a step towards achieving the United Nations’ Sustainable Development Goal 3: Good Health and Well-Being. Over the last 10 years, rapid advancements in three-dimensional (3D) printing technology (additive manufacturing) have enabled the production of low-cost, miniature 3D printed (3DP) devices for bio-chemical sensing, enabling innovation in healthcare diagnostics for everyone regardless of their economic background or geographical location. Compared to traditional manufacturing processes, 3D printing offers numerous advantages for miniaturized electrochemical point-of-care diagnostic devices, such as rapid prototyping, custom-shaped devices, flexible fabrication designs, low energy consumption, reduced time to market, and reduced waste generation. This article reviews recent developments in 3DP electrochemical sensors, including the printing of composite materials, advanced electrode architectures, activation and functionalization methods, and electrochemical sensing performance (i.e. sensitivity, linear range, limits of detection) towards various analytes, including heavy metals/water pollutants, toxic/explosive substances, neurotransmitters/stimulants, metabolites, DNA, amino acids, proteins, viruses, and food pathogens. Moreover, we discuss the remaining challenges and gaps in current knowledge and solutions to improve the electroanalytic performance of 3DP electrodes for future biomedical applications in wearable and smart-implantable sensor systems of the future.

Journal article

Rogdakis K, Chatzimanolis K, Psaltakis G, Tzoganakis N, Tsikritzis D, Anthopoulos TD, Kymakis Eet al., 2023, Mixed-Halide Perovskite Memristors with Gate-Tunable Functions Operating at Low-Switching Electric Fields, ADVANCED ELECTRONIC MATERIALS, ISSN: 2199-160X

Journal article

Sharma A, AlGhamdi WS, Faber H, Lin Y-H, Liu C-H, Hsu E-K, Lin W-Z, Naphade D, Mandal S, Heeney M, Anthopoulos TDet al., 2023, Non-invasive, ultrasensitive detection of glucose in saliva using metal oxide transistors, BIOSENSORS & BIOELECTRONICS, Vol: 237, ISSN: 0956-5663

Journal article

Ling Z, Nugraha MI, Hadmojo WT, Lin Y, Jeong SY, Yengel E, Faber H, Tang H, Laquai F, Emwas A-H, Chang X, Maksudov T, Gedda M, Woo HY, Mcculloch I, Heeney M, Tsetseris L, Anthopoulos TDet al., 2023, Over 19% Efficiency in Ternary Organic Solar Cells Enabled by n-Type Dopants, ACS ENERGY LETTERS, Vol: 8, Pages: 4104-4112, ISSN: 2380-8195

Journal article

Albaridy R, Periyanagounder D, Naphade D, Lee CJ, Hedhili M, Wan Y, Chang WH, Anthopoulos TD, Tung V, Aljarb A, Schwingenschlögl Uet al., 2023, Strain-Induced Sulfur Vacancies in Monolayer MoS<inf>2</inf>, ACS Materials Letters, Vol: 5, Pages: 2584-2593

The tuning of two-dimensional (2D) materials offers significant potential to overcome nanoelectronic limitations. As strain engineering is a nondestructive approach, we examine in this study the influence of biaxial strain on the chalcogen vacancy formation energy in transition metal dichalcogenides, employing a combination of calculations and experiments, specifically density functional theory, spherical-corrected scanning transmission electron microscopy, X-ray photoelectron spectroscopy, Raman and photoluminescence spectroscopy, Kelvin probe force microscopy, and I-V characterization. We demonstrate that compressive/tensile biaxial strain decreases/increases the chalcogen vacancy formation energy, increasing/decreasing the probability of creating chalcogen vacancies during the growth. Thus, differently strained areas within a sample can have different chalcogen vacancy densities, opening up a way to customize the work function and a route for defect engineering.

Journal article

Gedda M, Gkeka D, Nugraha MI, Scaccabarozzi AD, Yengel E, Khan J, Hamilton L, Lin Y, Deconinck M, Vaynzof Y, Laquai F, Bradley DDC, Anthopoulos TDet al., 2023, High-Efficiency Perovskite-Organic Blend Light-Emitting Diodes Featuring Self-Assembled Monolayers as Hole-Injecting Interlayers, ADVANCED ENERGY MATERIALS, Vol: 13, ISSN: 1614-6832

Journal article

Sahoo S, Kothavade PA, Naphade DR, Torris A, Praveenkumar B, Zareba JK, Anthopoulos TD, Shanmuganathan K, Boomishankar Ret al., 2023, 3D-printed polymer composite devices based on a ferroelectric chiral ammonium salt for high-performance piezoelectric energy harvesting, MATERIALS HORIZONS, Vol: 10, Pages: 3153-3161, ISSN: 2051-6347

Journal article

He Q, Shaw J, Firdaus Y, Hu X, Ding B, Marsh AV, Dumon AS, Han Y, Fei Z, Anthopoulos TD, McNeill CR, Heeney Met al., 2023, p-Type Conjugated Polymers Containing Electron-Deficient Pentacyclic Azepinedione, MACROMOLECULES, Vol: 56, Pages: 5825-5834, ISSN: 0024-9297

Journal article

Nugraha MI, Indriyati I, Primadona I, Gedda M, Timuda GE, Iskandar F, Anthopoulos TDDet al., 2023, Recent Progress in Colloidal Quantum Dot Thermoelectrics, ADVANCED MATERIALS, ISSN: 0935-9648

Journal article

Deswal S, Panday R, Naphade DR, Cazade P-A, Guerin S, Zareba JK, Steiner A, Ogale S, Anthopoulos TD, Boomishankar Ret al., 2023, Design and Piezoelectric Energy Harvesting Properties of a Ferroelectric Cyclophosphazene Salt, SMALL, ISSN: 1613-6810

Journal article

Wu J, Ling Z, Franco LRR, Jeong SY, Genene Z, Mena J, Chen S, Chen C, Araujo CM, Marchiori CFN, Kimpel J, Chang X, Isikgor FHH, Chen Q, Faber H, Han Y, Laquai F, Zhang M, Woo HY, Yu D, Anthopoulos TDD, Wang Eet al., 2023, On the Conformation of Dimeric Acceptors and Their Polymer Solar Cells with Efficiency over 18 %, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, ISSN: 1433-7851

Journal article

Negahdary M, Sharma A, Anthopoulos TD, Angnes Let al., 2023, Recent advances in electrochemical nanobiosensors for cardiac biomarkers, TRAC-TRENDS IN ANALYTICAL CHEMISTRY, Vol: 164, ISSN: 0165-9936

Journal article

Aljarb A, Min J, Hakami M, Fu J-H, Albaridy R, Wan Y, Lopatin S, Kaltsas D, Naphade D, Yengel E, Hedhili MN, Sait R, Emwas A-H, Kutbee A, Alsabban M, Huang K-W, Shih K, Tsetseris L, Anthopoulos TD, Tung V, Li L-Jet al., 2023, Interfacial Reconstructed Layer Controls the Orientation of Monolayer Transition-Metal Dichalcogenides, ACS NANO, Vol: 17, Pages: 10010-10018, ISSN: 1936-0851

Journal article

Duijnstee EA, Gallant BM, Holzhey P, Kubicki DJ, Collavini S, Sturdza BK, Sansom HC, Smith J, Gutmann MJ, Saha S, Gedda M, Nugraha MI, Kober-Czerny M, Xia C, Wright AD, Lin Y-H, Ramadan AJ, Matzen A, Hung EY-H, Seo S, Zhou S, Lim J, Anthopoulos TD, Filip MR, Johnston MB, Nicholas RJ, Delgado JL, Snaith HJet al., 2023, Understanding the Degradation of Methylenediammonium and Its Role in Phase-Stabilizing Formamidinium Lead Triiodide, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 145, Pages: 10275-10284, ISSN: 0002-7863

Journal article

Lin Y, Zhang Y, Magomedov A, Gkogkosi E, Zhang J, Zheng X, El-Labban A, Barlow S, Getautis V, Wang E, Tsetseris L, Marder SR, McCulloch I, Anthopoulos TDDet al., 2023, 18.73% efficient and stable inverted organic photovoltaics featuring a hybrid hole-extraction layer, MATERIALS HORIZONS, Vol: 10, Pages: 1292-1300, ISSN: 2051-6347

Journal article

Panca A, Panidi J, Faber H, Stathopoulos S, Anthopoulos TD, Prodromakis Tet al., 2023, Flexible Oxide Thin Film Transistors, Memristors, and Their Integration, ADVANCED FUNCTIONAL MATERIALS, ISSN: 1616-301X

Journal article

Chen H, Jeong SY, Tian J, Zhang Y, Naphade DR, Alsufyani M, Zhang W, Griggs S, Hu H, Barlow S, Woo HY, Marder SR, Anthopoulos TD, McCulloch I, Lin Yet al., 2023, A 19% efficient and stable organic photovoltaic device enabled by a guest nonfullerene acceptor with fibril-like morphology, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 16, Pages: 1062-1070, ISSN: 1754-5692

Journal article

Prajesh N, Naphade DR, Yadav A, Kushwaha V, Praveenkumar B, Zareba JK, Anthopoulos TD, Boomishankar Ret al., 2023, Visualization of domain structure and piezoelectric energy harvesting in a ferroelectric metal-ligand cage, CHEMICAL COMMUNICATIONS, Vol: 59, Pages: 2919-2922, ISSN: 1359-7345

Journal article

Anies F, Nugraha MI, Fall A, Panidi J, Zhao Y, Vanelle P, Tsetseris L, Broggi J, Anthopoulos TD, Heeney Met al., 2023, In Situ Generation of n-Type Dopants by Thermal Decarboxylation, ADVANCED FUNCTIONAL MATERIALS, Vol: 33, ISSN: 1616-301X

Journal article

He Q, Basu A, Cha H, Daboczi M, Panidi J, Tan L, Hu X, Huang CC, Ding B, White AJP, Kim J-S, Durrant JR, Anthopoulos TD, Heeney Met al., 2023, Ultra-Narrowband Near-Infrared Responsive J-Aggregates of Fused Quinoidal Tetracyanoindacenodithiophene, ADVANCED MATERIALS, Vol: 35, ISSN: 0935-9648

Journal article

Rahmawati I, Indriyati, Permatasari FA, Irham MA, Nugraha MI, Anthopoulos TD, Iskandar Fet al., 2023, Modulating Photothermal Properties of Carbon Dots through Nitrogen Incorporation Enables Efficient Solar Water Evaporation, ACS APPLIED NANO MATERIALS

Journal article

Portilla L, Loganathan K, Faber H, Eid A, Hester JGD, Tentzeris MMM, Fattori M, Cantatore E, Jiang C, Nathan A, Fiori G, Ibn-Mohammed T, Anthopoulos TDD, Pecunia Vet al., 2023, Wirelessly powered large-area electronics for the Internet of Things (vol 6, pg.no: 10, 2023), NATURE ELECTRONICS, ISSN: 2520-1131

Journal article

Mandal S, Hou Y, Wang M, Anthopoulos TD, Choy KLet al., 2023, Surface Modification of Hetero-phase Nanoparticles for Low-Cost Solution-Processable High-k Dielectric Polymer Nanocomposites, ACS APPLIED MATERIALS & INTERFACES, ISSN: 1944-8244

Journal article

Hu X, Basu A, Rimmele M, Marsh AVV, Anies F, He Q, Anthopoulos TDD, Heeney Met al., 2023, N-type polymer semiconductors incorporating heteroannulated benzothiadiazole, POLYMER CHEMISTRY, Vol: 14, Pages: 469-476, ISSN: 1759-9954

Journal article

Yarali E, El-Demellawi JK, Faber H, Naphade D, Lin Y, Loganathan K, Alghamdi WS, Xu X, Rehman AU, Aydin E, Gkeka D, Luo L, Yengel E, Maksudov T, De Wolf S, Alshareef HN, Anthopoulos TDet al., 2023, Fully Sprayed Metal Oxide Transistors Utilizing Ti3C2TX MXene Contacts, ACS APPLIED ELECTRONIC MATERIALS

Journal article

Wang H, Chen M, Yang Y, Ma Y, Luo L, Liu C, Getmanov I, Anthopoulos TD, Zhang X, Shamim Aet al., 2023, A Graphene Geometric Diode with the Highest Asymmetry Ratio and Three States Gate-Tunable Rectification Ability, Advanced Electronic Materials

Graphene geometric diodes, with applications in THz detection, energy harvesting, and high-speed rectification, have been previously constrained by graphene quality and geometry feature size. This study presents significant advancements in graphene geometric diodes by employing the h-BN/monolayer graphene/h-BN heterojunction and extremely precise electron beam lithography. Two distinct designs of graphene geometric diodes with neck widths of 23 and 26 nm are fabricated, the superior of which demonstrated an asymmetry ratio of 1.97, a zero bias current responsivity of 0.6 A W−1, and a voltage responsivity of 12,000 V W−1, setting new benchmarks for such devices. Integrating this device into a rectification circuit, the experimentally validate that the rectified DC output voltage can be dynamically modulated and even inverted through adjustments to the diode's gate voltage. This behavior aligns seamlessly with graphene's intrinsic tunability of charge carriers, implying promising prospects for the device's application in advanced logic circuits, bidirectional switches, and signal modulation/demodulation techniques.

Journal article

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