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| 1 | Suppressing thermal quenching via defect passivation for efficient quasi-2D perovskite light-emitting diodes显示文摘Emission thermal quenching is commonly observed in quasi-2D perovskite emitters,which causes the severe drop in luminescence eficiency for the quasi-2D perovskite light-emitting diodes(Pel EDs)during practical operations.However,this issue is often neglected and rarely studied,and the root cause of the thermal quenching has not been completely revealed now.Here,we develop a passivation strategy via the 2,7-dibromo-9,9-bis(3'-diethoxylphosphorylpropyl-fluorene to investigate and suppress the thermal quenching.The agent can effectively passivate coordination-unsaturated Pb2+defects of both surface and bulk of the flm without affecting the perovskite crysaliation,which helps to more truly demonstrate the important role of defects in thermal quenching.And our results reveal the root cause that the quenching will be strengthened by the defect promoted exciton-phonon coupling.Ultimately,the PeL EDs with defect passivation achieve an improved external quantum efficiengy(EQE)over 22%and doubled operation lifetime at room temperature,and can maintain about 85%of the initial EQE at 85℃,much higher than 17%of the control device.These findings provide an important basis for fabricating practical PeLEDs for lighting and displays. | Dezhong Zhang Yunxing Fu Hongmei Zhan Chenyang Zhao Xiang Gao Chuanjiang Qin Lixiang Wang | 2022 | Light(Science & Applications)2022，11，4： | 1 |
| 2 | Challenges in Channel Measurement and Modeling for RF Localization Inside the Human Body显示文摘 | Kaveh Pahlavan Yunxing Ye Ruijun Fu Umair Khan | 2012 | International Journal of Embedded and Real-Time Communication Systems (IJERTCS)2012，，3： | 1 |
| 3 | Dynamic simulation of China’s water-grain-meat system and evaluation of its support capability based on water footprint theory显示文摘The supply capacity of water resources,food and meat products is of great importance to the people’s livelihood of a country.In recent years,although China has introduced many policies on water resources and grain production,the current situation of China’s food self-sufficiency and imbalance between supply and demand of water resources has not been fundamentally changed.Food security and water security are facing a serious situation.This paper takes the water footprint as the connection point,and combines the water food meat system with mutual influence,mutual causation and dynamic feedback into a composite system.At the same time,the simulation model of the composite system is established by using system dynamics,and the dynamic simulation of water grain meat in China from 2000 to 2050 is carried out to explore the current situation and future development trend of China’s water,grain and meat supply capacity.It was found that during the simulated period,the agricultural blue-green water footprint on the demand side would continue to dominate,followed by the gray water footprint.The blue water footprint on the supply side remained stable,whereas the green water footprint and the circulating water footprint showed an upward trend.According to the contemporary social and economic development and the model of water resources in China,there will be no meat shortage in the future,but issues have been found in the ability to guarantee water and food supply.The root of China’s food support capability problem is excessive grain consumption due to meat production,whereas the cause of the water support capability problem is the slow development of the water conservation.Food support capability issues can be solved by regulating the meat output of livestock farming and fishery operations,reducing excess production capacity,and stabilizing the meat supply and demand.To solve the water support capability issue,China should focus on accelerating the pace of agricultural water-conservation development,improving the sewage treatment system,building rainwater-collection projects,and promoting the research and development of water recycling technology.This study provides support for optimizing the structures of the meat and grain industries and the policy formulation of the efficient use of water resources in China. | Qiuxiang Jiang Haoyu Liao Xingtao Ouyang Qiang Fu Xiaolong He Yunxing Wu Zilong Wang | 2023 | International Journal of Agricultural and Biological Engineering2023，16，5： | 0 |
| 4 | 超高级液相串联质谱法测定小鼠血浆中药物DPTM的含量显示文摘The objective is to develop an HPLC-MS/MS method for determining the concentration of DPTM in mouse plasma,and make a foundation for its pharmacokinetic study[1].HPLC and Mass spectrometry:Calibration standards and bio-sampleswere treated with protein precipitation method by acetonitrile.Before analysis,the residue was dissolved with certain volume mobile phase and filtered through 0.45m membrane,then separated with a ZORBAX SB-C 18 column(4.6 mm250 mm,5m)column at the flow rate of 0.2 mL/min by isocratic elution.The temperature of column oven was set at 40℃.The mobile phase consisted of acetonitrile-water with 0.1%formic acid(50:50,v/v).The auto-sampler was conditioned at 6℃and the injection volume was 10L for analysis. | Wu Qingfeng Li Jinyu Fu Yunxing | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
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