Results 21 to 30 of about 1,456,910 (261)

Thermochromic Lead‐Free Halide Double Perovskites [PDF]

Advanced Functional Materials, 2019
AbstractLead‐free halide double perovskites with diverse electronic structures and optical responses, as well as superior material stability show great promise for a range of optoelectronic applications. However, their large bandgaps limit their applications in the visible light range such as solar cells.
Ning, Weihua, Zhao, Xin‐Gang, Klarbring, Johan, Bai, Sai, Ji, Fuxiang, Wang, Feng, Simak, Sergei I., Tao, Youtian, Ren, Xiao‐Ming, Zhang, Lijun, Huang, Wei, Abrikosov, Igor A., Gao, Feng   +12 more
  +6 more sources

Magnetostructural Transition in Spin Frustrated Halide Double Perovskites. [PDF]

Chem Mater
Geometrical frustration in the face-centered-cubic (fcc) lattice presents a fundamental challenge in determining antiferromagnetic order, as the ground state is highly sensitive to subtle differences in competing magnetic interactions and structural symmetry.
Mopoung K, Tao Q, Orlandi F, Mukhuti K, Ramsamoedj KS, Singh U, Khamkaeo S, Zhang M, de Dreu MW, Dilmieva E, Ammerlaan ELQN, Ottenbros T, Wiedmann S, Boothroyd AT, Christianen PCM, Simak SI, Rosen J, Gao F, Buyanova IA, Chen WM, Puttisong Y.   +20 more
europepmc   +7 more sources

Chemically Localized Resonant Excitons in Silver-Pnictogen Halide Double Perovskites. [PDF]

J Phys Chem Lett, 2021
Halide double perovskites with alternating silver and pnictogen cations are an emerging family of photoabsorber materials with robust stability and band gaps in the visible range. However, the nature of optical excitations in these systems is not yet well understood, limiting their utility.
Biega RI, Filip MR, Leppert L, Neaton JB.   +3 more
europepmc   +8 more sources

Tuning Defects in a Halide Double Perovskite with Pressure

Journal of the American Chemical Society, 2022
Dopant defects in semiconductors can trap charge carriers or ionize to produce charge carriers─playing a critical role in electronic transport. Halide perovskites are a technologically important semiconductor family with a large pressure response.
Nathan R. Wolf, Adam Jaffe, Adam H. Slavney, Wendy L. Mao, Linn Leppert, Hemamala I. Karunadasa   +5 more
openaire   +2 more sources

Manipulation of parity and polarization through structural distortion in light-emitting halide double perovskites

Communications Materials, 2021
Halide perovskites recently attracted wide attention for light emitting applications. Here, octahedral distortion in halide double perovskites Cs2AgMCl6, induced by the mixture of trivalent M-cations Bi3+, In3+, and Sb3+, gives rise to enhanced white ...
Tamilselvan Appadurai, Ravi Kashikar, Poonam Sikarwar, Sudhadevi Antharjanam, Birabar Ranjit Kumar Nanda, Aravind Kumar Chandiran   +5 more
doaj   +1 more source

Two-Dimensional Halide Pb-Perovskite–Double Perovskite Epitaxial Heterostructures

Journal of the American Chemical Society, 2023
Epitaxial heterostructures of two-dimensional (2D) halide perovskites offer a new platform for studying intriguing structural, optical, and electronic properties. However, difficulties with the stability of Pb- and Sn-based heterostructures have repeatedly slowed the progress.
Singh, Ajeet, Yuan, Biao, Rahman, Md. Habibur, Yang, Hanjun, De, Angana, Park, Jee Yung, Zhang, Shuchen, Huang, Libai, Mannodi-Kanakkithodi, Arun, Pennycook, Timothy J., Dou, Letian   +10 more
openaire   +3 more sources

Computational screening of Cs based vacancy‐ordered double perovskites for solar cell and photocatalysis applications

EcoMat, 2023
The toxicity of lead ions in halide perovskite absorbing materials is the main bottleneck for practical application. To replace the traditional lead halide perovskites by environmental friendly double perovskite, computational tools based on density ...
Xinyu Ye, Anmin Liu, Liguo Gao, Chu Zhang, Lijing Yan, Shizheng Wen, Tingli Ma   +6 more
doaj   +1 more source

Efficient Emission in Halide Layered Double Perovskites: The Role of Sb3+ Substitution in Cs4Cd1–xMnxBi2Cl12 Phosphors [PDF]

, 2020
Layered halide perovskites and double perovskites optoelectronic properties have recently been the subject of intense research. Layered double perovskites represent the merging of both worlds, and as such, have the potential to further expand the already
Brenda, Vargas, Oscar, Ovalle-Encinia, Eduardo, Coutiño-Gonzalez, Diego, Solis-Ibarra, Citlali, Sánchez-Aké   +4 more
core   +2 more sources

Probing Local Coordination and Halide Miscibility in Single‑, Double‑, and Triple-Halide Perovskites Using EXAFS. [PDF]

J Phys Chem C Nanomater Interfaces
Lead-halide perovskites are a promising material platform as semiconductors in next-generation solar cells because of their solution processability, defect tolerance, and tunable optoelectronic properties. Mixed iodide–bromide perovskite compositions are
Mulgund SS, Hung EY, Bostwick L, Galbraith A, Romberg OM, Just J, Belisle RA.   +6 more
europepmc   +2 more sources

Hybrid Layered Double Perovskite Halides of Transition Metals

Journal of the American Chemical Society, 2022
Hybrid layered double perovskite (HLDP) halides comprise hexacoordinated 1+ and 3+ metals in the octahedral sites within a perovskite layer and organic amine cations between the layers. Progress on such materials has hitherto been limited to compounds containing main group 3+ ions isoelectronic with PbII (such as SbIII and BiIII). Here, we report eight
Pratap Vishnoi, Julia L. Zuo, Xiaotong Li, Devesh Chandra Binwal, Kira E. Wyckoff, Lingling Mao, Linus Kautzsch, Guang Wu, Stephen D. Wilson, Mercouri G. Kanatzidis, Ram Seshadri, Anthony K. Cheetham   +11 more
openaire   +4 more sources