Results 11 to 20 of about 9,384 (233)
Exciton Dynamics in MoS2-Pentacene and WSe2-Pentacene Heterojunctions [PDF]
ACS Nano, 2022 We measured the exciton dynamics in van der Waals heterojunctions of transition metal dichalcogenides (TMDCs) and organic semiconductors (OSs). TMDCs and OSs are semiconducting materials with rich and highly diverse optical and electronic properties. Their heterostructures, exhibiting van der Waals bonding at their interfaces, can be utilized in the ...
Pavel A. Markeev +12 more
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Aryl substitution of pentacenes [PDF]
Beilstein Journal of Organic Chemistry, 2014 A series of 11 new pentacene derivatives has been synthesized, with unsymmetrical substitution based on a trialkylsilylethynyl group at the 6-position and various aryl groups appended to the 13-position.
Andreas R. Waterloo +4 more
doaj +3 more sources
Artificial Intelligence-Driven Inverse Design of Singlet Fission Candidates in the Acene family. [PDF]
Adv Sci (Weinh)In this work, we describe an AI‐driven inverse design platform predicting S1 and T1 energies across acenes with high accuracy. Using Hammett σ constants as descriptors and RNN models coupled with optimization algorithms, it efficiently explores ≈1014 structures, uncovering novel SF candidates from benzene to pentacene. Freely accessible at https://alba.
Uceda RG +9 more
europepmc +2 more sources
The Vapour Sensing Capabilities of Organic Field-Effect Transistors [PDF]
, 2012 The work in this doctoral thesis is mainly concerned with the detection of volatile organic vapours (analytes) using organic field-effect transistors (OFETs) as transducers, in some cases using a ‘sensitiser layer’ on top of the devices to improve their ...
Hague, Lee
core +6 more sources
Modeling the Polymorphism of Pentacene [PDF]
Journal of the American Chemical Society, 2003 Thin films of pentacene are known to crystallize in at least four different polymorphs. All polymorphs are layered structures that are characterized by their interlayer spacing d(001). We develop a model that rationalizes the size of the interlayer spacing in terms of intralayer shifts of the pentacene molecules along their long molecular axes.
Mattheus, CC +4 more
openaire +2 more sources
Dynamics of Frenkel Excitons in Pentacene [PDF]
Materials, 2018 The dispersion relation for noninteracting excitons and the influence of perturbative corrections are examined in the case of pentacene structure. The values of exchange integrals are determined by nonlinear fits to the experimental dispersion data, obtained by the inelastic electron scattering reported in recent experiments.
Gombar, Sonja +4 more
openaire +3 more sources
Momentum dependence of the excitons in pentacene [PDF]
The Journal of Chemical Physics, 2012 We have carried out electron energy-loss investigations of the lowest singlet excitons in pentacene at 20 K. Our studies allow to determine the full exciton band structure in the a*, b* reciprocal lattice plane. The lowest singlet exciton can move coherently within this plane, and the resulting exciton dispersion is highly anisotropic.
Roth, Friedrich +4 more
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Interface Energy Alignment between Lead Halide Perovskite Single Crystals and TIPS-Pentacene
, 2023 At present, there is a huge development in optoelectronic applications using lead halide perovskites. Considering that device performance is largely governed by the transport of charges across interfaces and, therefore, the interfacial electronic ...
Håkan Rensmo (2459827) +13 more
core +1 more source
Singlet fission in pentacene dimers [PDF]
Proceedings of the National Academy of Sciences, 2015 Significance In the present work, we show compelling evidence for the unprecedented intramolecular singlet fission at room temperature and in dilute solutions within a set of three different regioisomeric pentacene dimers. Pump–probe experiments, which were complemented by theoretical calculations using high-level ab initio ...
Johannes, Zirzlmeier +8 more
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Strain-induced thermoelectricity in pentacene
Physical Chemistry Chemical Physics, 2022 The present work discusses a non-synthetic strategy to achieve a favorable thermoelectric response in pentacene via strain.
Kallol Mondal +2 more
openaire +3 more sources