Panagiotis Argitis
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View article: Photophysical Investigation of Dyes and Dye-PMMA Systems: Insights into Absorption, Emission, and Charge Transfer Mechanisms
Photophysical Investigation of Dyes and Dye-PMMA Systems: Insights into Absorption, Emission, and Charge Transfer Mechanisms Open
The photophysical properties of five dyes, i.e., perylene, anthracene, aminoanthracene, 1,6-diphenylhexatriene, and 7-diethylamino-4-methylcoumarin, in solvent and attached to the poly(methyl methacrylate) (PMMA) polymer, were studied via …
View article: Highly Robust Double Memristive Device Based on Perovskite/Molybdenum Oxide‐Sulfide Compound Heterojunction System
Highly Robust Double Memristive Device Based on Perovskite/Molybdenum Oxide‐Sulfide Compound Heterojunction System Open
Halide organic–inorganic perovskites (HOIPs) are a promising class of materials for neuromorphic computing and processing systems demonstrating a variety of resistive switching (RS) mechanisms. HOIPs have been used as active layers in two‐…
View article: Michael Hatzakis, semiconductor industry pioneer
Michael Hatzakis, semiconductor industry pioneer Open
Although this opinion paper tracks the career of Mike Hatzakis (as he liked to be called), and explains the impact he made on the IT industry, it is not intended to be comprehensive insofar as the work that was underway during his career i…
View article: A zinc porphyrin-amidine as a green carbon-based electron transport material for organic-light emitting diodes
A zinc porphyrin-amidine as a green carbon-based electron transport material for organic-light emitting diodes Open
Charge injection and transport interlayers based on artificial green carbon materials are imperative for a sustainable future of many classes of optoelectronic devices, including organic light-emitting diodes (OLEDs). Especially, porphyrin…
View article: Efficient and Stable Air-Processed Ternary Organic Solar Cells Incorporating Gallium-Porphyrin as an Electron Cascade Material
Efficient and Stable Air-Processed Ternary Organic Solar Cells Incorporating Gallium-Porphyrin as an Electron Cascade Material Open
Two gallium porphyrins, a tetraphenyl GaCl porphyrin, termed as (TPP)GaCl, and an octaethylporphyrin GaCl porphyrin, termed as (OEP)GaCl, were synthesized to use as an electron cascade in ternary organic bulk heterojunction films. A perfec…
View article: Efficient and Stable Air-Processed Ternary Organic Solar Cells Incorporating Gallium-Porphyrin as Electron Cascade Material
Efficient and Stable Air-Processed Ternary Organic Solar Cells Incorporating Gallium-Porphyrin as Electron Cascade Material Open
Two gallium porphyrins, a tetraphenyl GaCl porphyrin, termed as (TPP)GaCl, and an octaethylporphyrin GaCl porphyrin, termed as (OEP)GaCl were synthesized to use as electron cascade in ternary organic bulk heterojunction films. A perfect ma…
View article: Photolithographically Patterned Cell‐Repellent PEG‐<i>b</i>‐PTHPMA Diblock Copolymer for Guided Cell Adhesion and Growth
Photolithographically Patterned Cell‐Repellent PEG‐<i>b</i>‐PTHPMA Diblock Copolymer for Guided Cell Adhesion and Growth Open
Surfaces for guided cell adhesion and growth are indispensable in several diagnostic and therapeutic applications. Towards this direction, four diblock copolymers comprising polyethylene glycol (PEG) and poly(2‐tetrahydropyranyl methacryla…
View article: Functionalized BODIPYs as Tailor‐Made and Universal Interlayers for Efficient and Stable Organic and Perovskite Solar Cells
Functionalized BODIPYs as Tailor‐Made and Universal Interlayers for Efficient and Stable Organic and Perovskite Solar Cells Open
Solar cells based on metal halide perovskite and polymer donor:nonfullerene acceptor blend absorbers have recently witnessed a significant rise in their photovoltaic performance. However, they still suffer from some instability issues orig…
View article: Core–shell carbon-polymer quantum dot passivation for near infrared perovskite light emitting diodes
Core–shell carbon-polymer quantum dot passivation for near infrared perovskite light emitting diodes Open
High-performance perovskite light-emitting diodes (PeLEDs) require a high quality perovskite emitter and appropriate charge transport layers to facilitate charge injection and transport within the device. Solution-processed n-type metal ox…
View article: Fiber‐Shaped Electronic Devices
Fiber‐Shaped Electronic Devices Open
Textile electronics embedded in clothing represent an exciting new frontier for modern healthcare and communication systems. Fundamental to the development of these textile electronics is the development of the fibers forming the cloths in…
View article: Free-standing nanopaper electrode for all-printed super-flexible perovskite solar cells
Free-standing nanopaper electrode for all-printed super-flexible perovskite solar cells Open
The development of all-printed, flexible solar cells of high efficiency and ultra-low weight will offer advancements for new market entrants. Herein, we report the design and fabrication of all-printed in ambient air, super-flexible perovs…
View article: High Sensitivity Resists for EUV Lithography: A Review of Material Design Strategies and Performance Results
High Sensitivity Resists for EUV Lithography: A Review of Material Design Strategies and Performance Results Open
The need for decreasing semiconductor device critical dimensions at feature sizes below the 20 nm resolution limit has led the semiconductor industry to adopt extreme ultra violet (EUV) lithography with exposure at 13.5 nm as the main next…
View article: Inorganic and Hybrid Interfacial Materials for Organic and Perovskite Solar Cells
Inorganic and Hybrid Interfacial Materials for Organic and Perovskite Solar Cells Open
As organic solar cells (OSCs) and perovskite solar cells (PVSCs) move closer to commercialization, further efforts toward optimizing both cell efficiency and stability are needed. As interfaces strongly affect device performance and degrad…
View article: Molecular materials as interfacial layers and additives in perovskite solar cells
Molecular materials as interfacial layers and additives in perovskite solar cells Open
Here we review the recent strategies for developing organic and inorganic molecular materials for application as electron and hole transport layers and as additives to achieve high efficiency and stability perovskite solar cells.
View article: Functionalized Zinc Porphyrins with Various Peripheral Groups for Interfacial Electron Injection Barrier Control in Organic Light Emitting Diodes
Functionalized Zinc Porphyrins with Various Peripheral Groups for Interfacial Electron Injection Barrier Control in Organic Light Emitting Diodes Open
Here, we use a simple and effective method to accomplish energy level alignment and thus electron injection barrier control in organic light emitting diodes (OLEDs) with a conventional architecture based on a green emissive copolymer. In p…
View article: Ultra-sensitive EUV resists based on acid-catalyzed polymer backbone breaking
Ultra-sensitive EUV resists based on acid-catalyzed polymer backbone breaking Open
The aim of the current work was to develop new sensitive polymeric materials for lithographic applications, focusing in particular to EUV lithography, where the main polymer chain is cleaved under the influence of photogenerated acid. Resi…
View article: A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO<sub>2</sub> cathode interlayers for highly efficient and extremely stable polymer solar cells
A silanol-functionalized polyoxometalate with excellent electron transfer mediating behavior to ZnO and TiO<sub>2</sub> cathode interlayers for highly efficient and extremely stable polymer solar cells Open
A silanol-functionalized polyoxometalate improves the electron collecting interface.
View article: Improved Stability of Polymer Solar Cells in Ambient Air via Atomic Layer Deposition of Ultrathin Dielectric Layers
Improved Stability of Polymer Solar Cells in Ambient Air via Atomic Layer Deposition of Ultrathin Dielectric Layers Open
Polymer solar cells have attracted tremendous interest in the highly competitive solar energy sector, due to the practical advantages they exhibit, such as being lightweight, flexible, and low cost, in stark contrast to traditional photovo…
View article: The effect of TiO<sub>2</sub> component on the properties of acrylic and urea-aldehyde resins under accelerated ageing conditions
The effect of TiO<sub>2</sub> component on the properties of acrylic and urea-aldehyde resins under accelerated ageing conditions Open
Synthetic resins were introduced in paintings conservation during the 1930s, as an alternative to natural resins, due to their superior resistance to degradation. Their composition usually includes a small amount of additives, such as tita…
View article: Low Work Function Lacunary Polyoxometalates as Electron Transport Interlayers for Inverted Polymer Solar Cells of Improved Efficiency and Stability
Low Work Function Lacunary Polyoxometalates as Electron Transport Interlayers for Inverted Polymer Solar Cells of Improved Efficiency and Stability Open
Effective interface engineering has been shown to play a vital role in facilitating efficient charge-carrier transport, thus boosting the performance of organic photovoltaic devices. Herein, we employ water-soluble lacunary polyoxometalate…
View article: Accelerated Thermal Ageing Of Acrylic Copolymers, Cyclohexanone-Based And Urea-Aldehyde Resins Used In Paintings Conservation
Accelerated Thermal Ageing Of Acrylic Copolymers, Cyclohexanone-Based And Urea-Aldehyde Resins Used In Paintings Conservation Open
The monitoring of performance characteristics of resins was always an issue for the conservation community, since the stability of the art objects depends on the service life of conservation materials used. Among the resins commonly applie…
View article: Correction: Hydrogenated under-stoichiometric tungsten oxide anode interlayers for efficient and stable organic photovoltaics
Correction: Hydrogenated under-stoichiometric tungsten oxide anode interlayers for efficient and stable organic photovoltaics Open
Correction for ‘Hydrogenated under-stoichiometric tungsten oxide anode interlayers for efficient and stable organic photovoltaics’ by M. Vasilopoulou et al., J. Mater. Chem. A, 2014, 2, 1738–1749.
View article: Surface passivation effect by fluorine plasma treatment on ZnO for efficiency and lifetime improvement of inverted polymer solar cells
Surface passivation effect by fluorine plasma treatment on ZnO for efficiency and lifetime improvement of inverted polymer solar cells Open
The surface passivation effect of SF6 plasma on ZnO films for application in polymer solar cells is demonstrated.