Results 131 to 140 of about 10,754 (283)

A comprehensive theoretical investigation of lead-free mixed antimony-bismuth halide double perovskite (Cs₂AgBi₀.₇₅Sb₀.₂₅Br₆) solar cell using SCAPS-1D

open access: yesDiscover Electronics
The environmental hazards associated with lead (Pb)-based double perovskite solar cells (DPSCs) have intensified the search for efficient, lead-free alternatives.
Parwaz Asif   +3 more
doaj   +1 more source

Predicting the thermodynamic stability of double-perovskite halides from density functional theory

open access: yesAPL Materials, 2018
Recently, a series of double-perovskite halide compounds such as Cs2AgBiCl6 and Cs2AgBiBr6 have attracted intensive interest as promising alternatives to the solar absorber material CH3NH3PbI3 because they are Pb-free and may exhibit enhanced stability ...
Dan Han   +5 more
doaj   +1 more source

Robust and Tailored 1D/3D Heterojunction for Efficient and Stable Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
This study successfully established a robust 1D/3D heterojunction, characterized by a stable 1D phase, favorable lattice matching, strong interface binding, and effective defect passivation. The resulting epitaxial perovskite film demonstrates preferential vertical orientation of (100) facets, thereby facilitating carriers’ transport and stress relief.
Wending Hao   +7 more
wiley   +1 more source

Single Step and Solution Process Fabrication of Mesoporous ZnOS Thin Film as an Effective Electron Transport Layer for the Cs‐Based Halide Double PSCs

open access: yesEnergy Science & Engineering
In this study, the ZnOS thin films have been fabricated by the spin coating technique for applying as an effective electron transport layer (ETL) for halide double perovskite solar cells (PSCs).
Md. Jakir Hossen   +8 more
doaj   +1 more source

Synergistic Pyro‐Phototronics and Structural Anisotropy in CsAg2I3/GaN Heterostructures for High‐Performance Polarization‐Sensitive UV Photodetectors

open access: yesAdvanced Science, EarlyView.
The development of polarization‐sensitive ultraviolet photodetectors is limited by poor heterojunction quality and low polarization sensitivity. This study integrates synthesized CsAg2I3 single crystals with intrinsic non‐centrosymmetry into van der Waals heterojunction devices, demonstrating pronounced pyro‐phototronic effect.
Yalin Zhai   +9 more
wiley   +1 more source

Correction to Epitaxial Halide Perovskite Lateral Double Heterostructure [PDF]

open access: yesACS Nano, 2017
Yiping Wang   +7 more
openaire   +2 more sources

Engineered Interfacial Control for Suppression of Phase Instability: Operando Visualization from Device to Module Scale

open access: yesAdvanced Science, EarlyView.
Operando real‐time current density–voltage absorption spectroscopy visualizes spatial phase evolution in mixed‐halide perovskites from device to module scale. Phase instability preferentially initiates in regions with insufficient carrier extraction, revealing electrical boundary conditions as governing factors.
Hangyeol Choi   +8 more
wiley   +1 more source

Tracing the Dynamic Chemical Transformations of Spiro‐OMeTAD in Operating Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Mapping of Spiro‐OMeTAD layer's chemistry and electronic properties in PSC: Advanced cluster ion‐beam sputtering depth profile XPS reveals that environmental stressors (light, potential, and moisture) trigger the decomposition of LiTFSI dopants in Spiro‐OMeTAD.
Chittaranjan Das   +6 more
wiley   +1 more source

Ultrathin Quasi‐2D Perovskite‐Organic Segregated‐Structure Coupling for High‐Performance Narrowband Photomultiplication Detectors

open access: yesAdvanced Science, EarlyView.
Quasi‐2D perovskite‐organic segregated‐structure coupling enables low‐power narrowband photomultiplication photodetectors with 110 nm perovskite layer. The optimal device achieves 1200% EQE and 1.82 × 1011 Jones D* at 3 V, offering a new strategy for miniaturized high‐selectivity optoelectronic sensing.
Hongfei Qu   +11 more
wiley   +1 more source

Structural Diversity and Magnetic Properties of Hybrid Ruthenium Halide Perovskites and Related Compounds [PDF]

open access: yes, 2020
Cheetham, Anthony K   +6 more
core   +1 more source

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