Advanced Functional Materials, EarlyView.A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer +12 more
wiley +1 more source
Generalized low rank approximation to the symmetric positive semidefinite matrix [PDF]
arXiv, 2019 In this paper, we investigate the generalized low rank approximation to the symmetric positive semidefinite matrix in the Frobenius norm: $$\underset{ rank(X)\leq k}{\min} \sum^m_{i=1}\left \Vert A_i - B_i XB_i^T \right \Vert^2_F,$$ where $X$ is an unknown symmetric positive semidefinite matrix and $k$ is a positive integer. We firstly use the property
arxiv
An Efficient Algorithm for Inverting a Block-Symmetric Matrix [PDF]
, 1967 S. Charmonman
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Inter‐Layer Diffusion of Excitations in 2D Perovskites Revealed by Photoluminescence Reabsorption
Advanced Functional Materials, EarlyView.Inter‐layer diffusion of photoexcitations is monitored in thin films of the 2D perovskite (PEA)2PbI4 by tracking time‐dependent changes in photoluminescence spectra induced by photon reabsorption effects. A low out‐of‐plane excitation diffusion coefficient of 0.26 × 10−4 cm2 s−1 is determined through 1D diffusion modeling.
Jiaxing Du +7 more
wiley +1 more source
The Moments of Elementary Symmetric Functions of the Roots of a Matrix in Multivariate Analysis [PDF]
, 1961 Tito A. Mijares
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On the symmetric solutions of linear matrix equations
Linear Algebra and its Applications, 1990 AbstractThe symmetric solutions of linear matrix equations AX = C and AXB = C are considered. The necessary and sufficient conditions for the consistency of the equations with a symmetric condition on solutions are derived using the singular-value decomposition and the generalized singular-value decomposition.
openaire +2 more sources
Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level
Advanced Functional Materials, EarlyView.High‐resolution, multi‐frequency continuous wave, and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy uncover the intricate Na ion storage mechanisms in hard carbon. This study reveals the coexistence of Na ion intercalation and solvent co‐intercalation, alongside a subsequent transition of Na ions from ionic to quasi‐metallic to metallic ...
Qingbing Xia +5 more
wiley +1 more source
On Elementary Symmetric Functions of the Roots of a Multivariate Matrix: Distributions [PDF]
, 1964 Tito A. Mijares
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High‐Speed and Scalable Wet Spinning of Graphene/Liquid Crystalline Elastomer Composite Filaments
Advanced Functional Materials, EarlyView.Polydomain filaments from graphene/liquid crystalline elastomer (LCE) composites are scalably‐manufactured by wet spinning across a wide range of diameters (≈137–1128 µm) at a speed up to 4500 m h−1 through a double diffusion coagulation mechanism, enabling fast actuation and optimized mechanical performance for broad applications.
Antonio Proctor Martinez +5 more
wiley +1 more source
A comparison of methods for computing the eigenvalues and eigenvectors of real symmetric matrix [PDF]
, 1964 Paul A. White, Robert R. Brown
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