JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Kaixuan Shao,Shicong Pei,Zhuqing Li,Xiaojun She,Yuqing Yang,Hongrui Hu,Mingdi Yang,Kehua Zhang,Hang Li,Ping Wang,Yunsheng Ding,Xianhai Hu
Polymeric rare earth complexes have attracted much attention due to their unique luminescence properties and application prospects. However, as an important component of polymeric rare earth complexes, Sm (III) complexes are rarely reported due to the lack of organic ligands matching the energy of Sm (III). Herein, A novel Sm(III) complexes (Sm(MPon) 3 APhen) emitting red fluorescence is synthesized by using Sm(III) as the central ion and 1-(4- tert -butylphenyl)-3-(4-methoxyphenyl)-1,3-propanone (MPon) and 5-amino-1,10-phenanroline (APhen) as ligands, respectively. Then, A novel waterborne polyurethane-based complex [Sm(MP) 3 AP] x -WPU with orange-red fluorescence is prepared by modified acetone method using Sm(MPon) 3 APhen as the end-blocking agent. Compared with Sm(MPon) 3 APhen, the fluorescence emission peak of [Sm(MP) 3 AP] x -WPU is blue-shifted, and the fluorescence intensity is significantly enhanced with the increase of the amount of Sm(MPon) 3 APhen. Notably, the strongest fluorescence emission peak of [Sm(MP) 3 AP] x -WPU is located in the red light band with the highest photosynthetic absorption efficiency of plants, which could significantly improve the light environment for plant growth and promote plant growth. More importantly, [Sm(MP) 3 AP] x -WPU is water as a dispersed phase, which is particularly safe and environmentally friendly during storage, transportation and use.
研究领域:
材料科学
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植物学
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环境科学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 40
·2303729
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IF 19
Qingyuan Li,Yifan Zheng,Xin Guo,Guodong Zhang,Guoyu Ding,Yifeng Shi,Fenghua Li,Mengjie Sun,Yuchuan Shao
Underwater solar cells (UWSCs) provide an ideal alternative to the energy supply for long-endurance autonomous underwater vehicles. However, different from conventional solar cells situated on land or above water, UWSCs give preference to use wide bandgap semiconductors (≥1.8 eV) as light absorber to match underwater solar spectra. Among wide bandgap semiconductors, FAPbBr 3 perovskite is under prime consideration owing to its matching optical bandgap (≈2.3 eV), outstanding photoelectric properties, easier processability, etc. Unfortunately, for FAPbBr 3 solar cells, substantial interface defects greatly limit the charge carrier extraction efficiency, thus limiting the device performance, especially in underwater low-light environments. This study employs a molecular self-assembly strategy to effectively eliminate the interfacial defects. As a result, a great improvement in power conversion efficiency (PCE) from 6.44% to 7.49% is obtained, which is among the best efficiency reported for inverted FAPbBr 3 solar cells up to date. Besides, a champion PCE of 30% is obtained under 520 nm monochromatic light irradiation (4.8 mW cm −2 ). These results demonstrate that FAPbBr 3 solar cells present a tremendously promising application in UWSCs.
研究领域:
材料科学
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能源技术
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DOI
高影响因子
ADVANCED MATERIALS
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2021
·Vol. 33
·期 27
·2100770
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IF 30.849
Xilai He,Jiangzhao Chen,Xiaodong Ren,Lu Zhang,Yucheng Liu,Jiangshan Feng,Junjie Fang,Kui Zhao,Shengzhong (Frank) Liu
Perovskite solar cells exhibit not only high efficiency under full AM1.5 sunlight, but also have great potential for applications in low-light environments, such as indoors, cloudy conditions, early morning, late evening, etc. Unfortunately, their performance still suffers from severe trap-induced nonradiative recombination, particularly under low-light conditions. Here, a holistic passivation strategy is developed to reduce traps both on the surface and in the bulk of micrometer-thick perovskite film, leading to a record efficiency of 40.1% under 301.6 µW cm −2 warm light-emitting diode (LED) light for low-light solar-cell applications. The involvement of guanidinium into the perovskite bulk film and 2-(4-methoxyphenyl)ethylamine hydrobromide (CH 3 O-PEABr) passivation on the perovskite surface synergistically suppresses the trap states. The charge carrier lifetimes of the perovskite film increase by tenfold and fivefold to 981 ns and 8.02 µs at the crystal surface and in its bulk, respectively. The decreased nonradiative recombination loss translates to a high open-circuit voltage ( V oc ) of 1.00 V, a high short-circuit current ( J sc ) of 152.10 µA cm −2 , and a fill factor (FF) of 79.52%. Note that this performance also stands as the highest among all photovoltaics measured under indoor light illumination. This work of trap passivation for micrometer-thick perovskite film paves a way for high-performance, self-powered IoT devices.
研究领域:
材料科学
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光伏技术
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能源工程
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DOI
PubMed
高影响因子
Nature Communications
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2025
·Vol. 16
·期 1
·1-12
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IF 15.7
Yang Yaqian,Ran Wenhao,Li Ying,Chen Yancheng,Chen Di,Shen Guozhen
Biological vision system-inspired optoelectronic synapses integrate sensing, memory, and processing for external information perception. However, most efforts focus on spatial expansion while overlooking critical dimensions like polarization and temporal evolution, which are critical for information extraction in complex environments. Inspired by the polarization-sensitive properties of kingfisher vision, we develop a polarization-sensitive optoelectronic synapse array device based on PEA 2 SnI 4 microwires array. Their anisotropic properties ensure polarization recognition, achieving a dichroic ratio of 1.38. And the asymmetric electrode designs create differentiated contact barriers, facilitating efficient charge storage and erasure under low power consumption. By employing four polarization-state-dependent convolutional kernels, the device demonstrates edge extraction capabilities even under 50% salt pepper noise. Furthermore, it enables high-precision in-sensor reservoir computing, with 100% accuracy in extracting fish trajectories under complex light environments. This work demonstrates motion perception in complex environments and provides a foundation for developing multi-dimensional, time-resolved visual systems for intelligent sensing and recognition.
研究领域:
神经形态工程
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光电子学
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人工智能
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传感器技术
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材料科学
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计算机视觉
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信息处理
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）