High-sensitivity and high-output voltage lead-free perovskite-based fiber optoelectronic devices

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-05-16 DOI:10.1016/j.jlumin.2025.121305

Xueliang Zhang , Xiaoman Zhang , Xiaodong Zhang , Lefu Mei , Luoxin Wang , Hua Wang , Xiangming Li , Kun Nie

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引用次数: 0

Abstract

Lead-free halide perovskites have excellent optoelectronic properties and have been widely studied in the optoelectronic field. A kind of all-inorganic double perovskite crystals (PCs) with high output voltage and high sensitivity was successfully synthesized via a more energy-efficient crystallization method in this study. The luminescence intensity of the perovskite crystals was significantly enhanced by Bi³⁺ doping. These perovskite crystals were used to prepare red light-emitting diodes (LEDs) with color purity of up to 93.1 %. In addition, the perovskite crystals were used to modify aramid chopped fibers (ACFs)/polyphenylene sulfide (PPS) composite fibers to fabricate flexible luminescent fibers. The modified composite fibers also demonstrated exceptional piezoelectric properties. Therefore, the modified composite fiber was used to prepare a piezoelectric sensor. The maximum output voltage of the sensor could reach 50 V at room temperature with a response time of only 8 ms. The piezoelectric constant d₃₃ of this piezoelectric sensor was 374 pC/N, indicating that the sensor had high sensitivity. When the temperature increased to 373 K, the output voltage gradually rose to 100 V. The red and white LED devices demonstrated the potential of perovskites for lighting and display applications. Meanwhile, the flexible light-emitting fibers and piezoelectric sensors further expanded the application scope of perovskite in multifunctional optoelectronic devices.

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高灵敏度、高输出电压无铅钙钛矿基光纤光电器件

无铅卤化物钙钛矿具有优异的光电性能，在光电领域得到了广泛的研究。本研究通过更节能的结晶方法，成功合成了一种高输出电压、高灵敏度的全无机双钙钛矿晶体（PCs）。Bi3+的掺杂显著增强了钙钛矿晶体的发光强度。这些钙钛矿晶体被用来制备红色发光二极管（led），其色纯度高达93.1%。此外，还利用钙钛矿晶体对芳纶短切纤维(ACFs)/聚苯硫醚（PPS）复合纤维进行改性，制备了柔性发光纤维。改性复合纤维还表现出优异的压电性能。因此，采用改性复合纤维制备压电传感器。该传感器在室温下的最大输出电压可达50 V，响应时间仅为8 ms。该压电传感器的压电常数d33为374 pC/N，表明该传感器具有较高的灵敏度。当温度升高到373 K时，输出电压逐渐上升到100 V。红色和白色LED器件展示了钙钛矿在照明和显示应用中的潜力。同时，柔性发光纤维和压电传感器进一步扩大了钙钛矿在多功能光电器件中的应用范围。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.