Laser & Photonics Reviews
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2026
·
IF 9.7
Haohong Jiang,Yuanhong Hu,Tongzhou Wei,Lixiang Chen,Qiaoming Zhang,Yanlian Lei
Color vision is essential for human perception, yet red-green color vision deficiency (CVD) affects millions and poses significant challenges for chromatic discrimination. Existing assistive technologies are often static and distort true color perception. In this study, we introduce a novel photo-synaptic device designed to enhance chromatic discrimination for individuals with red-green CVD by converting photonic signals into digital synaptic currents. Utilizing a poly(3-hexylthiophene) (P3HT)-based organic heterojunction, our device achieves a tenfold improvement in wavelength discrimination between red and green light compared to a control device that mimics red-green color blindness. When integrated with artificial neural networks, the device demonstrates a remarkable 92% accuracy in recognizing complex chromatic patterns. Our findings further demonstrate the device's potential to enhance color recognition for individuals with color weakness, enabling more effective differentiation of intricate patterns. This work provides a robust solution for enhancing color perception and lays the groundwork for next-generation bioelectronic systems focused on sensory restoration.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121312
·
IF 7.2
Qinming Wang,Jinlin Wan,Sen Wu,Xingfu Zhou
Perovskite films fabricated by the solution-based approach usually contain a high density of defects, and as the top surface is exposed to the external environment, this region is where major defects are most easily formed. Organic ammonium salts can be used as materials for interfacial defect passivation. This study employed propylamine hydroiodide (PAI) to passivate the ternary perovskite's surface. PAI's interfacial passivation can effectively improve the interface defect and obtain the better film quality. Meanwhile, the incorporation of PAI can efficiently diminish the film's surface roughness, which is beneficial for the excellent contact at the interface. Post-PAI treatment effectively reduces the non-radiative recombination, markedly improving device stability and PCE. The final results show that the highest efficiency (PCE) after PAI passivation is 15.72 %, the open circuit voltage (V OC ) is 0.98 V, the short circuit current (J SC ) is 20.96 mA/cm 2 , and the filling factor FF is 76.51 %, which is 16.1 % higher than that of un-passivated devices. And in the case of light storage for more than 2000 h without packaging, PCE loss is only 14.5 %, showing significant long-term stability.
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JOURNAL OF COORDINATION CHEMISTRY
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2022
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IF 1.869
Chengjie Gao,Zhenzhou Sun,Ning Zhu,Hongliang Han,Zhongfeng Li,Chaoyue Gu,Yuping Yang,Xiulan Xin,Qiming Qiu,Wei Yang,Guo Wang,Qionghua Jin
Two new complexes, [Cu(dmp)(2-bdppmapy)](CF3SO3)·CH2Cl2 (1) and [Cu(imidazo[4,5-f])(2-bdppmapy)](SCN) (2) (2-bdppmapy = N,N-bis[(diphenylphosphino)methyl]-2-pyridinamine, dmp = 2,9-dimethyl-(1,10)phenanthroline and imidazo[4,5-f] = 1H-imidazo[4,5f][1,10]phenanthroline), have been synthesized in mixed solvents of CH3OH and CH2Cl2 (1:1, V/V). On the basis of studying the structure and photophysical properties of the Cu(I) complexes, the effects of different N ligands and counter anions on the luminescence properties of the Cu(I) complexes were characterized by single-crystal X-ray diffraction, fluorescence spectra and terahertz time-domain spectroscopy (THz-TDS). The research shows that 1 exhibits excellent photoluminescence quantum yields. It is ascribed to the unique stacked structure. In addition, the relationship between the multiple weak forces, structure, and photophysical properties of the complexes was investigated.
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Light-Science & Applications
·
2022
·Vol. 11
·期 1
·1-9
·
IF 20.257
Ju Songman,Zhu Yangbin,Hu Hailong,Liu Yang,Xu Zhongwei,Zheng Jinping,Mao Chaomin,Yu Yongshen,Yang Kaiyu,Lin Lihua,Guo Tailiang,Li Fushan
Interactive display devices integrating multiple functions have become a development trend of display technology. The excellent luminescence properties of perovskite quantum dots (PQDs) make it an ideal luminescent material for the next generation of wide-color gamut displays. Here we design and fabricate dual-function light-sensing/displaying light-emitting devices based on PQDs. The devices can display information as an output port, and simultaneously sense outside light signals as an input port and modulate the display information in a non-contact mode. The dual functions were attributed to the device designs: (1) the hole transport layer in the devices also acts as the light-sensing layer to absorb outside light signals; (2) the introduced hole trapping layer interface can trap holes originating from the light-sensing layer, and thus tune the charge transport properties and the light-emitting intensities. The sensing and display behavior of the device can be further modulated by light signals with different time and space information. This fusion of sensing and display functions has broad prospects in non-contact interactive screens and communication ports.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yanwen Jing,Yanqi Lv,Ke Wang,Zhimin Xu,Xingfu Zhou
The organic-inorganic perovskite solar cells (PSCs) have recently attracted significant attention owing to their remarkable photovoltaic performance . Herein, we fabricate a novel perovskite absorber Cs 0.05 (FA 0.83 MA 0.17 ) 0.95 Pb 1−x Zn x (I 0.83 Br 0.17 ) 3 by using ZnBr 2 as an additive. The introduction of zinc increases the grain size and reduces the grain boundary defects. At the optimized concentration of 0.5 mol% ZnBr 2 additive, the x-ray diffraction (XRD) shows the perfect crystallization of the perovskite film. The enhanced crystallization of the perovskite structure suppresses the non-radiative recombination loss and prolongs the carrier lifetime. The optimized PSC presents a champion power conversion efficiency (PCE) of 15.64 % and shows a negligible hysteresis effect. Moreover, the increased built-in electric field (V bi ) between the n-type Zn doped perovskite and the p-type CuSCN creates more driving force for the separation of photogenerated carriers and increases the open-circuit photovoltage (V oc ) of the device. The unencapsulated device maintains more than 87 % of its original PCE after aging for 90 days in the ambient condition, while the control device can only maintain 60 % of its original PCE. These results suggest that the simple B-site ion-doped perovskite could be a good option for the future improvement of PSCs.
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CANADIAN JOURNAL OF CHEMICAL ENGINEERING
·
2020
·
IF 1.687
Ibrahim A. Alhumaydhi,Rashid Abro,Shaukat Ali Mazari,Masroor Abro,Sabzoi Nizamuddin,Abdul Q. Memon,Guangren Yu
This work presented the preparation of two new systems comprised of ionic liquids (ILs), organic solvent, and cuprous salt. Consequently, their absorption ability was investigated for propylene (C 3 H 6 ) and propane (C 3 H 8 ) and their mixtures at 100 kPa-700 kPa pressure and 298 K-318 K temperature. Representative ILs were 1-butyl-3-methylimidazolium thiocyanate ([C 4 mim]SCN) and 1-ethyl-3-methylimidazolium thiocyanate ([C 2 mim]SCN). N,N-dimethylformamide (DMF) and cuprous thiocyanate (CuSCN) were selected for the absorption system. The effects of operating parameters like Cu + concentration, pressure, temperature, and recycling of ILs absorbency were examined and compared with the literature. It was observed that C 3 H 6 shows a chemical absorption while C 3 H 8 undergoes a physical one by [C 4 mim]SCN-DMF-CuSCN and [C 2 mim]SCN-DMF-CuSCN, and an increase in concentration of Cu + effectively improves the absorption capability for C 3 H 6 and the selectivity of C 3 H 6 /C 3 H 8 . Furthermore, [C 4 mim]SCN-DMF-CuSCN had higher absorption capability and selectivity for C 3 H 6 than [C 2 mim]SCN-DMF-CuSCN. [C 4 mim]SCN-CuSCN-2.0 M absorbed 0.637 mol of C 3 H 6 per litre while 0.16 mol of C 3 H 8 per litre at 700 kPa and 298 K, with a selectivity of 3.9. This work shows that new combination of organic solvent and ILs with Cu + salt is a new class of potential reactive absorbents to separate C 3 H 6 and C 3 H 8 .
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Yanqi Lv,Hui Tong,Wanxian Cai,Zhaobin Zhang,Hongling Chen,Xingfu Zhou
Recently, the rapid development of efficient organic-inorganic halide perovskite solar cells (PSCs) has been witnessed extensively. In this study, the TiO 2 nanorod arrays (NAs) with different molar ratios of zinc doping were employed as electron transport layer in carbon-based perovskite solar cells for enhancing photovoltaic performance . Zinc-doped TiO 2 NAs as electron transport and TiO 2 compacted electron blocking layer were simultaneously grown on the fluorine-doped tin oxide glass . Zn-doped TiO 2 NAs show the vertical growth on FTO surface with good crystallinity which provides the direct pathway for the perovskite penetration and the better carrier transfer performance. The surface morphology , crystal structure, absorption and electrical conductivity of Zn-doped TiO 2 NAs are investigated methodically. The reduced contact angle shows the enhanced affinity of Zn-doped TiO 2 with perovskite. Study shows that Zn-doped TiO 2 based PSC device has higher shunt resistance and low series resistance and longer carrier lifetime when compared with pristine sample. The space-charge-limited current (SCLC) measurement demonstrates that 2.5 mol% Zn-doped TiO 2 NAs ETL exhibits higher electron mobility than that of pristine TiO 2 NAs. The increased in J sc of the Zn-doped TiO 2 NAs based cells is mainly ascribed to the reduced trap-state density and enhanced electrical conductivity. As compared with the flat band potential (V FB ) of pristine sample, the V FB of 2.5 mol% Zn-doped TiO 2 NAs has a negative shift of 0.33V, thus resulting in the positive shift of conduction band and better band alignment with perovskite layer. The power conversion efficiency was improved from 12.99% to 14.45% with the optimized zinc doping concentration of 2.5 mol%. Furthermore, the optimized cell without encapsulation still maintains 85% of original efficiency via 30 days stability test.
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Advanced Materials Technologies
·
2020
·Vol. 5
·期 8
·2000260
·
IF 5.969
Zhiyong Liu,Xingyue Liu,Bo Sun,Xianhua Tan,Haibo Ye,Jianxin Zhou,Zirong Tang,Tielin Shi,Guanglan Liao
Photodetectors are essential parts of wireless optical communication system for obtaining high fidelity signal transmission, which mainly relies on expensive and energy-consuming Si, GaN, and InGaAs based photodiodes. The emerging organic–inorganic metal halide perovskite materials, with the merits of low-cost, strong optical absorption, superior charge transport, and so on, are widely investigated in photodetection applications. Herein, a Cu ion induced p-type doping strategy for perovskite film is proposed to facilitate hole transport, passivate trap states, avoid charge accumulation, and suppress recombination of photogenerated carriers, contributing to an enhanced photoelectric performance for self-powered hole-conductor-free devices. The optimal device shows a highest responsivity of 0.37 A W −1 , detectivity of 1.06 × 10 12 Jones, linear dynamic range of over 101 dB, and an ultimate photoresponse rate approaching 5 µs. Moreover, an optical communication system integrated with the perovskite photodetector as light signal receiver for transmitting digital signals is demonstrated, in which characters can be transmitted accurately, and audio signal is recovered with high fidelity. The results suggest that with proper chemical modification, perovskite materials are promising alternative to inorganic semiconductors for efficient photodetection in advanced integrated optical communication system.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2015
·
IF 3.091
Guangren Yu,Lin Zhang,Ibrahim A. Alhumaydhi,Ahmed A. Abdeltawab,Abdulaziz A. Bagabas,Hamid A. Al-Megren,Salem S. Al-Deyab,Xiaochun Chen
Ionic liquids (ILs) coupled with Ag + or Cu + salts to form a new kind of reactive absorbent have been studied to separate light olefin from paraffin recently. In this work, we prepared two halogen-free alkylimidazolium thiocyanate ILs with cheaper cuprous thiocyanate, i.e., [Bmim]SCN–CuSCN and [Emim]SCN–CuSCN (Bmim, 1-butyl-3-methylimidazolium; Emim, 1-ethyl-3-methylimidazolium) and investigated their absorption capability for propylene, propane and mixture of both at 1–7 bar and 298–318 K. The effects of operating parameter including cation nature, temperature, pressure, Cu + concentration and reuse of absorbent were investigated. Propylene shows a chemical absorption while propane does a physical one, and increasing Cu + concentration effectively improves the absorption capability for propylene and the selectivity of propylene/propane. [Bmim]SCN–CuSCN has higher absorption capability and selectivity for propylene than [Emim]SCN–CuSCN, e.g., [Bmim]SCN–CuSCN-1.5 M can absorb 0.12 mol of propylene per liter while 0.012 mol of propane per liter at 1 bar and 298 K, with a selectivity of 10, which is comparable to some other ILs-Ag + salts and better than pure ILs. Such absorbents can be regenerated through temperature and pressure swing without remarkable activity loss. This work shows that alkylimidazolium thiocyanate ILs with Cu + salts are promising reactive absorbents to separate propylene from propane.
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SEPARATION SCIENCE AND TECHNOLOGY
·
2013
·
IF 1.164
Xiaochun Chen,Shuimin Ming,Xinying Wu,Chang Chen,Charles Asumana,Guangren Yu
The absorption of propylene and propane in Cu(I)-based ionic liquids, i.e., 1-butyl-3-methylimidazolium chloride/CuCl ([Bmim][Cl]/CuCl), N-Methyl pyrrolidone chloride/CuCl ([HNMP][Cl]/CuCl), and tricaprylmethylammonium thiocyanate/CuSCN ([A336][SCN]/CuSCN), are investigated in this work. It is observed that such Cu(I)-based ionic liquids, especially Bmim-based ionic liquids, present good absorption capability for propylene and good selectivity over propane, e.g., 1.0 kilogram [Bmim][Cl]/CuCl is able to absorb 0.08 mol propylene while only 0.006 mol propane at 25°C and 1.3 bar with the selectivity of 13. The effects of pressure, Cu+ concentration, and temperature on the absorption are investigated; in addition, the absorption kinetics of propylene by [Bmim][Cl]/CuCl is obtained. The much higher absorption capability for propylene than propane is ascribed to the π-complexation between propylene and Cu+. This work shows that the absorption by Cu(I)-based ionic liquids is an potential alternative method for traditional cryogenic distillation with high energy cost to separate propylene and propane.
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Scientific Reports
·
2017
·Vol. 7
·期 1
·1-10
·
IF 4.259
Du Jianwei,Zhang Peng,Zhao Xiao,Wang Youxiang
Cucurbit[7]uril (CB[7]), a representative member of the host family cucurbit[n]uril, can host-guest interact with many guest molecules such as adamantane, viologen and naphthalene derivatives. This host-guest interaction provides an easy strategy in gene vector assembling. Furthermore, CB[7] can self-assemble on gold nanospheres (AuNSs). Herein, the combination of CB[7] and AuNSs provides both advantages of host-guest interaction and photo-thermal effect of AuNSs. In this study, polyethyleneimine (PEI) and polyethylene glycol (PEG) were separately interacted with CB[7] via host-guest interaction. Then by assembling on AuNSs, PEI and PEG were combined together to condense DNA into polyplexes as well as enhance circulation stability of the polyplexes. These gene vectors were found to have high cellular uptake efficiency and low cytotoxicity. Furthermore, the well distributed AuNSs in the polyplexes could transform light into heat under light exposure because of the photo-thermal effect. This was found to effectively promote the entry of gene into cytoplasm and highly enhanced gene transfection efficiency.
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高影响因子
Science China-Materials
·
2025
·
IF 7.4
Chen Wenliang,Zhang Yingze,Zhu Xiaoyu,Miao Junhui,Liu Jun,Wang Lixiang
Near-infrared (NIR) organic photodetectors (OPDs) hold enormous commercial potential in wearable biosensing and imaging applications. However, their sensitivity remains comparatively lower than that of commercially available silicon-based photodetectors (Si PDs). In this study, we present highly sensitive NIR OPDs by incorporating an all-fused-ring small molecule acceptor, FM4, with low trap density into a conventional active layer system. FM4 effectively reduces traps in the active layer, resulting in a decrease in trap density from 1.57 × 10 15 to 8.86 × 10 14 cm −3 . Consequently, under −1 V bias, the OPD device with FM4 as the third component achieves an ultra-low real-measured noise current of 7.56 × 10 −15 A Hz −1/2 at 1 kHz, lower than that of commercial Si PDs, which is primarily attributed to the substantial decrease in trap density within the active layer. Due to its ultra-low noise current, the ternary device exhibits a high specific detectivity of 1.83 × 10 13 Jones at 840 nm under −1 V bias and a broad linear dynamic range of 155 dB. Its sensitivity exceeds that of Si PDs. Furthermore, this sensitive OPD device has been successfully utilized in single-pixel low-light imaging, delivering superior image clarity compared to Si PDs.
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