Wei Zhang , Yifei Wang , Hengyang Xiang , Yongshu Wang , Fan Wu , Zhongchao Bai , Qiang Zhang , Yuan Chen
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引用次数: 0
Abstract
An antisolvent engineering strategy was proposed to prevent the solvent corrosion phenomenon, the specific type and ratio of antisolvents was demonstrated could effectively decrease the surface defect density. Consequently, the CsPbBr3 perovskite single crystal films (PSCF) present well optical and electrical properties. Accordingly, the light emitting diode based on bared PSCF that without only surface passivation and interface modification achieved high performance. Over 10,000 brightness and external quantum efficiency about 1.3 % were achieved. Moreover, the electroluminescence peak located at 521 nm showed a narrow half peak width of 18 nm, which well meets the display requirements of NTSC. The device also presents good stability, the T50 has reached 2 and 37 h at the brightness of 1000 cd/cm2 and 100 cd/cm2, respectively.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
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