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Stably doped graphene transparent electrode with improved lightextraction for efficient flexible organic light-emitting diodes

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Nano Research 2023年第11期16卷 12788-12793页

作者： Lai-Peng Ma Zhongbin Wu Yukun Yan dingdong zhang Shichao Dong Jinhong Du Dongge Ma Hui-Ming Cheng Wencai Ren Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Frontiers Science Center for Flexible Electronics Institute of Flexible Electronics(IFE)Northwestern Polytechnical UniversityXi’an 710072China State Key Laboratory of Luminescent Materials&Devices South China University of TechnologyGuangzhou 510640China Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen 518055China

Graphene-based flexible transparent electrodes(FTEs)are promising candidate materials for developing next-generation flexible organic light-emitting diodes(OLEDs).However,the quest for high-efficiency OLEDs is hindered by the low light-extraction and charge injection efficiencies of graphene ***,we combine the frustrated Lewis pair doping with nanostructure engineering to obtain high-performance graphene FTE.A p-type dopant aci-nitromethane-tris(pentafluorophenyl)borane(ANBCF)was synthesized and deposited on graphene FTE to form an aperiodic nanostructure,which not only improves the light-extraction but also stably p-dopes graphene to enhance its hole *** use of ANBCF-doped graphene as the anode enables high-efficiency flexible green OLEDs with external quantum efficiency(EQE)and power efficiency(PE)out-performing most flexible graphene OLEDs of comparable *** study provides a simple and effective pathway to fabricate high-performance graphene FTEs for efficient flexible OLEDs.

关键词： graphene transparent electrode flexible organic light-emitting diode(OLED) doping light-extraction

Aquafeed fermentation improves dietary nutritional quality and benefits feeding behavior,meat flavor,and intestinal microbiota of Chinese mitten crab(Eriocheir sinensis)

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Animal Nutrition 2023年第3期14卷 1-19页

作者： Weibo Jiang Xiaoyan Jia Ningjun Xie Chuang Wen Shuo Ma Guangzhen Jiang Xiangfei Li Cheng Chi dingdong zhang Wenbin Liu Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province College of Animal Science and TechnologyNanjing Agricultural UniversityNanjing 210095China

Normally,proper fermentation can be an efficient and widely used method to improve feed quality in animal rearing;however,the studies on crustaceans,especially Eriocheir sinensis,remain *** study aimed to investigate whether feed fermentation could meliorate dietary nutritional value and benefit *** ***,non-fermented feed(NFD)and fermented feed(FD)were produced and assessed,***,the“Y”maze feed choice behavior test(180 times;30 times,6 rounds)was conducted to assess the attractiveness of these 2 feeds for ***,a total of 80 crabs(44.10±0.80 g)were randomly assigned into 2 groups with 4 replicates,and fed the experimental diets for 8 weeks to evaluate the effects of each feed on growth,antioxidant capacity,meat flavor,and intestinal *** this study,FD showed higher levels of crude protein(P<0.01),soluble protein(P<0.01),amino acids(P<0.05),lactic acid(P<0.001),and lower levels of crude fiber(P<0.05)and antinutritional factors(agglutinin,trypsin inhibitor,glycinin,andβ-conglycinin)(P<0.001)than ***,FD was more attractive to crabs than NFD(P<0.01)and it stimulated the appetite of crabs more than NFD(P<0.05).The growth performance,feed efficiency,and digestive enzyme activity of FDfed crabs were significantly higher than those of NFD-fed crabs(P<0.05).The electronic sensory measurements and free amino acid profiles revealed that the FD diet had positive impacts on the meat flavor of crabs,particularly in“sweet”and“umami”***,the antioxidant capacity of FD-fed crabs was significantly higher than that of NFD-fed crabs(P<0.05).Fermented feed also affected the diversity and composition of intestinal *** functional prediction of microbial communities showed that crabs fed FD had a better microecological environment in the *** conclusion,the fermentation of aquafeed could be an effective approach to enhance feed quality and therefore benefit *** rearing.

关键词： Fermentation feed Feed attraction Meat flavor Intestinal microflora Nutritional composition Eriocheir sinensis

Effects of dietary cottonseed meal protein hydrolysate on growth,antioxidants and immunity of Chinese mitten crab Eriocheir Sinensis

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Journal of Oceanology and Limnology 2020年第3期38卷 869-882页

作者： CHENG Huihui LIU Wenbin YUAN Xiangyang JIA Erteng zhang dingdong JIANG Guangzhen Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province National Experimental Teaching Center for Animal ScienceCollege of Animal Science and TechnologyNanjing Agricultural UniversityNanjing 210095China

One hundred and sixty crabs(average initial weight:51.32±0.08 g)were fed with four experimental diets containing cottonseed meal protein hydrolysate(CPH)at 0%(CPH0,control),0.3%(CPH0.3),0.6%(CPH0.6),and 1.2%CPH(CPH1.2).The experiment results show that no difference was observed in specific growth rate and survival rate of crabs fed with CPH *** content of crabs fed with CPH0.6 diet was significantly reduced than that of the CPH0 *** dismutase and catalase activities of crabs fed with CPH0.6 diet were significantly increased and the difference was not significant between the CPH0.3 and CPH0.6 *** content of CPH0.3 group was significantly lower than that of the CPH0 ***,alkaline phosphatase,and acid phosphatase activities of CPH0.3 diet crabs were significantly higher than that of the CPH0 ***-pyruvic transaminase activity of crabs fed with CPH0.3 diet was significantly decreased compared to the CPH0 *** relative expression levels of Toll1,Toll2,MyD88,LITAF,and ILF-2 of crabs fed with CPH0.3 diet were significantly higher than that of the CPH0 *** expression level of SOCS2 showed an opposite *** CPH perfusion,the expression levels of SOCS2 and Toll1 in intestine at time 3 h and SOCS2 in hepatopancreas at time 18 h increased significantly to the highest *** expression level of Toll2,MyD88,LITAF,decreased at times 6 h,6 h,12 h,respectively,then increased ***,supplementation of dietary CPH could improve antioxidant capacity and immune function;the appropriate supplement dosage of CPH for crab could be 0.3%-0.6%.Furthermore,the short-term CPH stimulation could significantly increase or decline the expression levels of immune-related genes at different times after CPH perfusion.

关键词： Eriocheir sinensis cottonseed meal protein hydrolysate growth body composition immunity antioxidant

Germ cell-specific deletion of Pex3 reveals essential roles of PEX3-dependent peroxisomes in spermiogenesis

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The Journal of Biomedical Research 2024年第1期38卷 24-36页

作者： Yejin Yao Baolu Shi Xiangzheng zhang Xin Wang Shuangyue Li Ying Yao Yueshuai Guo dingdong Chen Bing Wang Yan Yuan Jiahao Sha Xuejiang Guo State Key Laboratory of Reproductive Medicine and Offspring Health Nanjing Medical UniversityNanjingJiangsu 211166China Reproductive and Genetic Branch the First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230001China State Key Laboratory of Reproductive Medicine and Offspring Health Women's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjing Medical UniversityNanjingJiangsu 211166China.

Peroxisomes are organelles enclosed by a single membrane and are present in various *** abruption of peroxisomes is correlated with peroxisome biogenesis disorders and single peroxisomal enzyme deficiencies that induce diverse diseases in different ***,little is known about the protein compositions and corresponding roles of heterogeneous peroxisomes in various *** transcriptomic and proteomic analyses,we observed heterogenous peroxisomal components among different organs,as well as between testicular somatic cells and different developmental stages of germ *** Pex3 is expressed in both germ cells and Sertoli cells,we generated Pex3 germ cell-and Sertoli cell-specific knockout *** Pex3 deletion in Sertoli cells did not affect spermatogenesis,the deletion in germ cells resulted in male sterility,manifested as the destruction of intercellular bridges between spermatids and the formation of multinucleated giant *** analysis of the Pex3-deleted spermatids revealed defective expressions of peroxisomal proteins and spermiogenesis-related *** findings provide new insights that PEX3-dependent peroxisomes are essential for germ cells undergoing spermiogenesis,but not for Sertoli cells.

关键词： male infertility spermiogenesis peroxisome oxidative stress PEX3

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低功耗非对称性可调STDP突触电路设计

微电子学 2022年第1期52卷 17-21页

作者：王巍张珊赵汝法张定冬熊德宇袁军重庆邮电大学光电工程学院/国际半导体学院重庆400065

基于65 nm CMOS工艺设计了一种可用于脉冲神经网络系统的低功耗、高能效、结构紧凑的突触电路。突触电路采用开关电容电路结构,直接接收来自神经元电路的脉冲信号,根据脉冲时间依赖可塑性(STDP)学习规则调节突触权重,并实现了权重学习... 详细信息

基于65 nm CMOS工艺设计了一种可用于脉冲神经网络系统的低功耗、高能效、结构紧凑的突触电路。突触电路采用开关电容电路结构,直接接收来自神经元电路的脉冲信号,根据脉冲时间依赖可塑性(STDP)学习规则调节突触权重,并实现了权重学习窗口的非对称性调节,使突触电路可以适应不同情况。仿真结果表明,突触电路耗能约为0.4 pJ/spike。

关键词：突触 CMOS STDP 脉冲神经网络

一种SAR ADC电容失配自测量与数字校准技术

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微电子学 2022年第4期52卷 550-554页

作者：王巍刘博文赵汝法张定冬张珊熊德宇重庆邮电大学光电工程学院/国际半导体学院重庆400065

为了解决高分辨率逐次逼近模数转换器(SAR ADC)中,电容式数模转换器(DAC)的电容失配导致精度下降的问题,提出了一种电容失配自测量方法,以及一种可适用于各种差分电容DAC设计的低复杂度的前台数字校准方法。该方法利用自身电容阵列及比... 详细信息

为了解决高分辨率逐次逼近模数转换器(SAR ADC)中,电容式数模转换器(DAC)的电容失配导致精度下降的问题,提出了一种电容失配自测量方法,以及一种可适用于各种差分电容DAC设计的低复杂度的前台数字校准方法。该方法利用自身电容阵列及比较器完成位电容失配测量,基于电容失配的转换曲线分析,对每一位输出的权重进行修正,得到实际DAC电容大小对应的正确权重,完成数字校准。数模混合电路仿真结果表明,引入电容失配的16位SAR ADC,经该方法校准后,有效位数由10.74 bit提高到15.38 bit。

关键词：逐次逼近模数转换器数字校准电容失配

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用于CdZnTe探测器的高速前端读出电路

微电子学 2022年第3期52卷 376-382页

作者：王巍张定冬赵汝法刘博文张珊熊德宇黎淼重庆邮电大学光电学院/国际半导体学院重庆400065

采用0.35μm CMOS工艺,设计了一种用于CdZnTe探测器的16通道高速前端读出电路。整体电路由16个模拟通道、偏置模块和逻辑控制模块组成,每个通道包括电荷敏感放大器、漏电流补偿电路、成形器、基线保持电路、峰值检测保持电路和时间甄别... 详细信息

采用0.35μm CMOS工艺,设计了一种用于CdZnTe探测器的16通道高速前端读出电路。整体电路由16个模拟通道、偏置模块和逻辑控制模块组成,每个通道包括电荷敏感放大器、漏电流补偿电路、成形器、基线保持电路、峰值检测保持电路和时间甄别器。分析了高入射频率下主要电路模块的性能及通道的读出时序。仿真结果表明,本前端读出电路的输入能量范围为29~430 keV@1~15 fC,每个通道功耗小于1.8 mW,等效噪声电荷为87.6e^(-),最大能补偿的漏电流为50 nA,达峰时间为150 ns,通道增益为50 mV/fC,非线性小于1%,最高注入频率为500 kHz。

关键词：前端读出电路 CdZnTe探测器高速单光子发射计算机断层成像

饲料脂肪酸碳链长度对团头鲂生长、肌纤维发育及肉质的影响

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水产学报 2023年第12期47卷 95-110页

作者：王曦肖康刘文斌戴永军郭慧星汪茫茫李向飞张定东蒋广震南京农业大学动物科技学院江苏省水产营养重点实验室

饲料脂肪不仅影响养殖鱼类的生长与健康状况，还会通过调控肌纤维特性影响肉质。为探究不同碳链长度脂肪酸对团头鲂生长、肌纤维发育及肉质的影响，实验选取108尾初始平均体重为(77.89±0.81) g的健康团头鲂，随机分为4组，每组3重复，... 详细信息

饲料脂肪不仅影响养殖鱼类的生长与健康状况，还会通过调控肌纤维特性影响肉质。为探究不同碳链长度脂肪酸对团头鲂生长、肌纤维发育及肉质的影响，实验选取108尾初始平均体重为(77.89±0.81) g的健康团头鲂，随机分为4组，每组3重复，分别饲喂基础饲料(对照组)以及替代1.5%豆油的丁酸(BA)、辛酸(OA)、棕榈酸(PA)组饲料8周。结果显示，与对照组相比，饲料添加不同碳链长度脂肪酸对团头鲂生长无显著影响，然而可显著提升肌肉黏附性，增加肌纤维数量、较小直径(<20μm)肌纤维比例及肌节长度。在基因表达方面，OA显著增加了肌源性因子myf5基因mRNA表达量。BA能在下调抑肌基因mstnb的同时，显著上调ampkα2和sirt1基因的mRNA表达量。Ca2+依赖的信号通路的关键基因camk表达量也随饲料中脂肪酸碳链长度的增加而显著提升。研究表明，饲料添加不同碳链长度脂肪酸可以通过AMPK和Ca2+依赖的信号通路实现对团头鲂肌纤维发育及肉质的有效提升。本研究为营养素调控团头鲂鱼肉品质提供了基础数据和理论依据，也为鱼类肌肉品质的营养强化提供了全新模式。

关键词：团头鲂脂肪酸碳链长度肌纤维发育肉质

5位高速低功耗Binary-Search模数转换器

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微电子学 2022年第2期52卷 289-294页

作者：赵汝法熊德宇王巍张定冬张珊袁军杨正琳李俊峰重庆邮电大学光电工程学院/国际半导体学院重庆400065 中国科学院微电子研究所集成电路先导工艺研发中心北京100029

基于65 nm CMOS工艺,设计了一种高速低功耗二分搜索算法(Binary-Search)模数转换器(ADC)。与传统Binary-Search结构相比,该ADC的比较器采用两级动态前置放大器和一级动态闩锁器组合构成,减小了静态电流,得到极低的功耗;失调电压降低到... 详细信息

基于65 nm CMOS工艺,设计了一种高速低功耗二分搜索算法(Binary-Search)模数转换器(ADC)。与传统Binary-Search结构相比,该ADC的比较器采用两级动态前置放大器和一级动态闩锁器组合构成,减小了静态电流,得到极低的功耗;失调电压降低到不会引起判决误差,省去了外接的数字校准模块。因此,芯片面积减小,避免了校准模块拖慢比较器的工作速度。后仿结果表明,当采样频率为1 GHz时,该Binary-Search ADC的有效位达4.59 bit,功耗仅1.57 mW。

关键词：模数转换器二分搜索算法全动态结构