Results 21 to 30 of about 260 (165)
Moving beyond traditional trial‐and‐error, this review explores how integrating high‐throughput computational simulations, automated experimentation, and machine learning significantly accelerates perovskite solar cell development. By establishing intelligent, closed‐loop workflows, these synergistic technologies pave the way for fully autonomous ...
Yiming Wang +5 more
wiley +1 more source
Turn Broad Into Narrow: Understanding the Pr3+ → Gd3+ Energy Transfer in Cs2NaYCl6
The energy transfer processes of Pr3+ in elpasolite‐like Cs2NaY1‐xGdxCl6: 1mol%$1 \,\mathrm{mol}\%$ Pr3+ is investigated by steady‐state and time‐resolved spectroscopy. An analysis of the multiexponential decays in the framework of the shell model of energy transfer suggests an occupation of both the Y and Na sites by Pr3+ in this host.
Tom Förster +5 more
wiley +1 more source
Spectroscopic studies, theoretical models and structural characterization. I. The elpasolites Cs2NaLnCl6, where Ln3+ = Er3+, Yb3+ [PDF]
The stoichiometric elpasolites of the type Cs2NaLnCl6 are known to belong to the space group Fm3m(script O signh 5). The structural data of these elpasolites is both scare and rather limited and therefore a throughout experimental study is needed.
Acevedo, R., Tanner, P. A., Poblete, V.
core
The Anionically All‐Boron‐Based Anti‐Perovskites Cs3[BH4][B12H12] and Cs3[BF4][B12H12]
The anionically all‐boron‐based colorless anti‐perovskites Cs3[BH4][B12H12] and Cs3[BF4][B12H12] can be obtained by isothermal evaporation from aqueous solutions of the underlying pseudo‐binary components Cs2[B12H12] and Cs[BH4] or Cs[BF4]. At ambient conditions, Cs3[BH4][B12H12] crystallizes trigonally (R3¯$\overline{3}$m) and transforms reversibly ...
Ioannis Tiritiris +3 more
wiley +1 more source
Lead‐free double perovskites are emerging alternatives to lead‐halide analogues, leveraging low toxicity and highly tunable chemical compositions. These materials possess unique carrier dynamics, often governed by self‐trapped exciton (STE)‐mediated recombination.
Joshua K. G. Karlsson +7 more
wiley +1 more source
The crystal structures of (Ba6Nx)2[MN4][CN2]6 (left) and “ideal” 2 × 2 × 2 Perovskite (right) show similar linkage patterns despite differently shaped coordination polyhedra. Cubic carbodiimide nitride nitridometalates (Ba6Nx)2[MN4][CN2]6 of M = Zr, Hf, Nb, Ta, Mo, and W are synthesized by various high‐temperature reactions and their respective crystal
Peter Höhn +4 more
wiley +1 more source
A Sb3+‐activated bismuth‐based halide single crystal shifts the onset temperature by ≈200 K. The confluence of the spin‐orbit interaction and the dynamic Jahn–Teller effect is responsible for maximizing the opposite emission changes at different temperatures. A high relative sensitivity (Sr) value of 18.9 % K−1 is obtained at 77 K.
Weihao Wang +6 more
wiley +1 more source
This article provides a comprehensive review of supercapacitor and photosupercapacitor applications of halide perovskites and their future perspectives. Abstract Supercapacitors have garnered significant research interest as high‐performance energy storage devices, owingto their high power density and excellent recyclability.
Chandra Sekhar Rout +4 more
wiley +1 more source
Defining of the Covalence Parameters in Cs2NaYCl6:Eu3+ and Cs2NaEuCl6 by the Optical Spectra [PDF]
The influence of the excited configurations with the charge transfer on the Stark structure of the multiplets of Eu3+ ion in the elpasolites was investigated with the help of the modified crystal field Hamiltonian.
Fomicheva, L. A. +2 more
core +1 more source
The Importance of Metal Ion Impurity Bands in the Photoluminescence of Halide Double Perovskites
Many publications have associated emission spectral features of double perovskite halides in the region at 460–470 nm with “pristine” materials. This leads to not only false observations but also incorrect conclusions concerning the transformation of dark into bright excitons or boosting self‐trapped exciton emission.
Hei‐Yui Kai +4 more
wiley +1 more source

