Results 91 to 100 of about 1,921 (222)

The Dawn of Lead‐Free Perovskite Solar Cell: Highly Stable Double Perovskite Cs2AgBiBr6 Film

Advanced Science, 2018
Recently, lead‐free double perovskites have emerged as a promising environmentally friendly photovoltaic material for their intrinsic thermodynamic stability, appropriate bandgaps, small carrier effective masses, and low exciton binding energies. However,
Cuncun Wu, Qiaohui Zhang, Yang Liu, Wei Luo, Xuan Guo, Ziru Huang, Hungkit Ting, Weihai Sun, Xinrui Zhong, Shiyuan Wei, Shufeng Wang, Zhijian Chen, Lixin Xiao   +12 more
doaj   +1 more source

Theoretical Design and Characterization of Rb2ZnRuCl6 and Cs2ZnRuCl6 Novel Halide Perovskites

ChemNanoMat, Volume 12, Issue 1, January 2026.
Lead‐free Ru‐based double halide perovskites Rb2ZnRuCl6 and Cs2ZnRuCl6 are theoretically predicted to be structurally stable. Their Ru‐Cl‐dominated electronic structure yields indirect bandgaps in the visible range and moderate dielectric screening, favoring efficient photoexcited charge generation and separation for optoelectronic applications.
Francielen S. M. Rodrigues, Matheus H. L. C. Terzo, Mateus S. Santos, José A. S. Laranjeira, Sérgio A. Azevedo, Mateus M. Ferrer, Julio R. Sambrano   +6 more
wiley   +1 more source

Designing Physical Unclonable Functions From Optically Active Materials

Advanced Materials, Volume 37, Issue 49, December 10, 2025.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen, Junfang Zhang, Molly M. Stevens   +2 more
wiley   +1 more source

Bi–Sb Co‐Alloying Tunes Photoexcited State Dynamics in (4FPEA)4AgBi1−xSbxI8 Layered Double Perovskites through Structural Confinement

Advanced Optical Materials, Volume 13, Issue 36, December 19, 2025.
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, Sami Toikkonen, Noolu Srinivasa Manikanta Viswanath, Alejandro Cortés‐Villena, Raquel E. Galian, Noora Lamminen, G. Krishnamurthy Grandhi, Paola Vivo   +7 more
wiley   +1 more source

Metal‐Free Perovskites for X‐Ray Detection and Imaging: Progress and Prospects

EcoEnergy, Volume 3, Issue 4, December 2025.
The MFPs possess structural diversity and photoelectric properties and show attractive advantages for X‐ray detection and imaging. This review highlights the significant roles of components in influencing the material properties and physical parameters of MFPs, and systematically summarizes the advanced progress on both rigid and flexible‐based X‐ray ...
Zhizai Li, Yaxing Wang, Zhiwen Jin
wiley   +1 more source

Rudorffite Silver‐Bismuth Iodides: Emerging Eco‐Friendly Wide‐Bandgap Absorbers for Indoor Photovoltaics

Small, Volume 21, Issue 52, December 29, 2025.
This review highlights recent advances in rudorffite silver–bismuth iodides (Ag–Bi–I) as eco‐friendly, wide‐bandgap absorbers for indoor photovoltaics. It summarizes their crystallographic and optoelectronic properties, compares solution‐ and vapor‐processed film formation, and discusses device engineering strategies—such as hot‐air‐assisted ...
Taeho Moon
wiley   +1 more source

Deep insight into structural and optoelectronic properties of mixed anion perovskites [PDF]

Here we present the optoelectronic properties of pure inorganic lead-free halide perovskites in the form of Cs2AgBiX6 (X = Br, Cl, F, I) using the density functional theory calculations on cubic phase (Fm Misplaced & m) and tetragonal phase (I4/m). First,
Arunasalam, Thevakaran, Eidsvåg, Håkon, Ponniah, Vajeeston, Ravirajan, Punniamoorthy, Velauthapillai, Dhayalan, Wanniarachchi, Chapa   +5 more
core   +1 more source

Understanding the Performance-Limiting Factors of Cs₂AgBiBr₆ Double-Perovskite Solar Cells [PDF]

, 2020
Double perovskites have recently emerged as possible alternatives to lead-based halide perovskites for photovoltaic applications. In particular, Understanding the Performance-Limiting Factors of Cs₂AgBiBr₆ Double-Perovskite Solar Cells has been the ...
Abdi-Jalebi, M, Buizza, LRV, Herz, LM, Longo, G, Mahesh, S, Nayak, PK, Ramadan, AJ, Snaith, HJ, Wright, AD   +8 more
core  

From Chemistry to Solar Cells: The Central Role of Materials Innovation in Perovskite Photovoltaic Revolution

Transformative Chemistry, Volume 1, Issue 1, December 2025.
Perovskite solar cells offer transformative potential with high efficiency and low cost but face commercialization barriers due to instability, lead toxicity, and scalability. This perspective highlights materials innovation—compositional engineering, additives, and interfaces—as central to overcoming these hurdles.
Michael Grätzel
wiley   +1 more source

Polar Indirect Valley as a Limiting Factor for Radiative Efficiency in Gold‐Based Mixed‐Valence Double Perovskites

Advanced Optical Materials, Volume 13, Issue 32, November 14, 2025.
This work addresses a common issue in many double perovskites: their weak luminescence. Using the example of promising infrared‐bandgap mixed‐valence gold halide double perovskites, it demonstrates strong polar electron‐phonon coupling. Temperature‐dependent spectroscopy reveals that bright polarons are favored at low temperature, while a dark low ...
Ange B. Chambissie Kameni, Alexandre Py‐Renaudie, Damien Garrot, Baptiste Berenguier, Guillaume Bouchez, Davide Raffaele Ceratti, Philip Schulz, Jean‐François Guillemoles, Géraud Delport   +8 more
wiley   +1 more source