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A comparison of the structural, optical and electronic properties of the recently discovered transparent conducting oxide (TCO), nanoporous Ca12Al14O33, with those of the conventional TCO's (such as Sc-doped CdO) indicates that this…

Materials Science · Physics 2009-11-10 J. E. Medvedeva , A. J. Freeman

Organic charge-transfer complexes (CTCs) formed by strong electron acceptor and strong electron donor molecules are known to exhibit exotic effects such as superconductivity and charge density waves. We present a low-temperature scanning…

Mesoscale and Nanoscale Physics · Physics 2021-06-24 Avijit Kumar , Kaustuv Banerjee , Mikko M. Ervasti , Shawulienu Kezilebieke , Marc Dvorak , Patrick Rinke , Ari Harju , Peter Liljeroth

Porphyrinic materials show a range of interesting and useful optical and electrical properties. The less well-known sub-class of porphyrin diacids has been used in this work to construct an ionic hybrid organic-inorganic material in…

Molecular materials enable a vast variety of functionalities for novel electronic and spintronic devices. The unique possibility to alter or substitute organic molecules or metallic substrates offers the opportunity to modify and optimize…

Mesoscale and Nanoscale Physics · Physics 2020-09-02 Johannes Seidel , Leah L. Kelly , Markus Franke , Christian Kumpf , Mirko Cinchetti , Martin Aeschlimann , Benjamin Stadtmüller

Organolead halide perovskites are a family of hybrid organic-inorganic compounds whose remarkable optoelectronic properties have been under intensive scrutiny in recent years. Here we use inelastic X-ray scattering to study low-energy…

Many phenomena in condensed matter are thought to result from competition between different ordered phases. Palladium is a paramagnetic metal close to both ferromagnetism and superconductivity, and is therefore a potentially interesting…

Mesoscale and Nanoscale Physics · Physics 2010-05-14 Gavin D. Scott , Juan J. Palacios , Douglas Natelson

Highly luminescent isolated polydiacetylene (PDA) chains in a new diacetylene crystal are studied. The diacetylene crystal structure and theoretical calculations suggest that the chains are not planar and more strongly twisted than any…

Periodically driven optical materials and metamaterials have recently emerged as a promising platform for realizing photonic time crystals (PTCs), which are systems whose optical properties are strongly and periodically modulated on…

Nanolayered post-transition metal monochalcogenides (PTMMCs) stand out as promising advanced two-dimensional (2D) materials. Beyond inheriting the general advantages associated with traditional 2D materials, they exhibit unique properties,…

Materials Science · Physics 2024-03-06 Mingyu Yu , Maria Hilse , Qihua Zhang , Yongchen Liu , Zhengtianye Wang , Stephanie Law

We performed an extensive first-principles study of nanowires in various pentagonal structures by using pseudopotential plane wave method within the density functional theory. Our results show that nanowires of different types of elements,…

Materials Science · Physics 2009-11-07 Prasenjit Sen , O. Gulseren , T. Yildirim , Inder P. Batra , S. Ciraci

We investigate the molecular acceptors 3,4,9,10-perylene-tetracarboxylic acid dianhydride (PTCDA), 2,3,5,6-tetra uoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ), and 4,5,9,10-pyrenetetraone (PYTON) on Ag(111) using densityfunctional theory.…

Materials Science · Physics 2015-06-17 Oliver T. Hofmann , Viktor Atalla , Nikolaj Moll , Patrick Rinke , Matthias Scheffler

Virtually all organic (opto)electronic devices rely on organic/inorganic interfaces with specific properties. These properties are, in turn, inextricably linked to the interface structure. Therefore, a change in structure can introduce a…

Materials Science · Physics 2022-04-21 Lukas Hörmann , Andreas Jeindl , Oliver T. Hofmann

There is a substantial interest in the heterostructures of semiconducting transition metal dichalcogenides (TMDCs) amongst each other or with arbitrary materials, through which the control of the chemical, structural, electronic,…

We present a group theoretic analysis of several classes of organic superconductors. We argue that highly frustrated half-filled layered organic superconductors, such as kappa-(ET)_2Cu2(CN)_3 (where ET is BEDT-TTF) and…

Superconductivity · Physics 2007-05-23 B. J. Powell

A high-throughput screening based on first-principles calculations was performed to search for new ternary inorganic electrides. From the available materials database, we identified three new thermodynamically stable materials…

Materials Science · Physics 2019-02-13 Junjie Wang , Qiang Zhu , Zhenhai Wang , Hideo Hosono

Solution processed polymers are at the core of organic electronics. Polyradicals (polymers in which each repeating unit contains an unpaired spin) are unique alternatives to their p-conjugated, semiconducting counterparts. Unique of…

Applied Physics · Physics 2019-10-24 Deepa Singh , Francois Magnan , Joe B. Gilroy , Giovanni Fanchini

Rechargeable Aluminium-organic batteries are an exciting emerging energy storage technology owing to their low cost and promising high performance, thanks to the ability to allow multiple-electron redox chemistry and multivalent Al-ion…

Chemical Physics · Physics 2022-03-23 Nicolò Canever , Thomas Nann

Recently, significant research efforts have been made to develop complex nanostructures to provide more sophisticated control over the optical and electronic properties of nanomaterials. However, there are only a handful of semiconductors…

Materials Science · Physics 2015-06-12 Andrew P. Magyar , Igor Aharonovich , Mor Baram , Evelyn L. Hu

Hybrid halide perovskite semiconductors exhibit complex, dynamical disorder while also harboring properties ideal for optoelectronic applications that include photovoltaics. However, these materials are structurally and compositionally…

Materials Science · Physics 2020-12-10 Eve M. Mozur , James R. Neilson

The extraordinary properties of materials accompanying their phase transitions are exciting from the perspectives of scientific research and new applications. Most recently, Karothu et al.1 described guanidinium nitrate, [C(NH2)3]+[NO3]-,…

Materials Science · Physics 2023-05-30 Marek Szafrański , Andrzej Katrusiak