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| 1 | Effect of TMGa flux on GaN films deposited on Ti coated on glass substrates at low temperature显示文摘Highly c-axis-oriented GaN films were deposited on Ti coated glass substrates using low temperature electron cyclotron resonance plasma enhanced metal organic chemical vapor deposition system(ECR-PEMOCVD)with trimethyl gallium(TMGa)as gallium source.The influence of TMGa flux on the properties of GaN films were systematically investigated by reflection high energy electron diffraction(RHEED),X-ray diffraction analysis(XRD),atomic force microscopy(AFM)and Raman scattering.The GaN film with small surface roughness and high c-axis preferred orientation was successfully achieved at the optimized TMGa flux of 1.0 sccm.The ohmic contact characteristic between GaN and Ti layer was clearly demonstrated by the near-linear current-voltage(I-V)curve.The GaN/Ti/glass structure has great potential to dramatically improve the scalability and reduce the cost of solid-state lighting light emitting diodes. | WANG EnPing BIAN JiMing QIN FuWen ZHANG Dong LIU YueMei ZHAO Yue DUAN ZhongWei WANG Shuai | 2013 | Chinese Science Bulletin2013，58，30： | 2 |
| 2 | Discharge behavior of Mg–4wt%Ga–2wt%Hg alloy as anode for seawater activated battery显示文摘 | Jun Zhao Kun Yu Yanan Hu Shaojun Li Xin Tan Fuwen Chen Zhiming Yu | 2011 | Electrochimica Acta2011，，24： | 2 |
| 3 | Ecological scale and seasonal heterogeneity in the spatial behaviors of giant pandas显示文摘We report on the first study to track the spatial behaviors of wild giant pandas(Ailuropoda melanoleuca)using high-resolution global positioning system(GPS)telemetry.Between 2008 and 2009,4 pandas(2 male and 2 fe-male)were tracked in Foping Reserve,China for an average of 305 days(±54.8 SE).Panda home ranges were larger than those of previous very high frequency tracking studies,with a bimodal distribution of space-use and distinct winter and summer centers of activity.Home range sizes were larger in winter than in summer,although there was considerable individual variability.All tracked pandas exhibited individualistic,unoriented and multi-phasic movement paths,with a high level of tortuosity within seasonal core habitats and directed,linear,large-scale movements between habitats.Pandas moved from low elevation winter habitats to high elevation(>2000 m)summer habitats in May,when temperatures averaged 17.5°C(±0.3 SE),and these large-scale movements took<1 month to complete.The peak in panda mean elevation occurred in Jul,after which they began slow,large-scale movements back to winter habitats that were completed in Nov.An adult female panda made 2 long-distance movements during the mating season.Pandas remain close to rivers and streams during winter,possi-bly reflecting the elevated water requirements to digest their high-fiber food.Panda movement path tortuosity and first-passage-time as a function of spatial scale indicated a mean peak in habitat search effort and patch use of approximately 700 m.Despite a high degree of spatial overlap between panda home ranges,particularly in winter,we detected neither avoidance nor attraction behavior between conspecifics. | Zejun ZHANG James K.SHEPPARD Ronald R.SWAISGOOD Guan WANG Yonggang NIE Wei WEI Naxun ZHAO Fuwen WEI | 2014 | Integrative Zoology2014，9，1： | 1 |
| 4 | Effects of Sowing Time, Density and Fertilizer Application on the Economic Characters of Zhuoyou 058显示文摘In order to study the high-yield cultivation techniques of Zhuoyou 058,the single-factor test design method was applied to study the effects of sowing time,density,and fertilizer application on plant traits,yield traits and yield.The results showed that with the delay of sowing,the plant height and the first branch height decreased,the whole growth period was shortened,and the yield was the highest at 197.50 kg/666.7 m^2 in the treatment of sowing on October 1,so the most suitable sowing date should be before October 9.With the increase of the planting density,the plant height and the first branch height increased,the yield traits decreased significantly,and lodging occurred.The yield per unit area was the highest at 201.44 kg/666.7 m^2 under the density of 12 000 plants/666.7 m^2,and the lowest at 155.47 kg/666.7 m^2 under the density of 6 000 plants/666.7 m^2.Therefore,the best density was 9 000-15 000 plants/666.7 m^2.As the fertilizing amount increased,the plant height,the first branch height,the number of effective branches and the number of effect pods all increased,and the yield was the highest at 194.93 kg/666.7 m^2 under the fertilizing amount of 50 kg/666.7 m^2,and the lowest at 135.16 kg/666.7 m^2 under the fertilizing amount of 30 kg/666.7 m^2.The gross profit was the highest at 854.20 yuan/666.7 m^2 under the density of 12 000 plants/666.7 m^2,and the second highest at 836.65 yuan/666.7 m^2 under the fertilizing amount of 50 kg/666.7 m^2.The best fertilizing amount should be 40-50 kg/666.7 m^2 in cultivation. | Hua WANG Fuwen KE Hailin WANG Yao ZHAO | 2019 | Agricultural Biotechnology2019，8，3： | 1 |
| 5 | Modulating morphology via side-chain engineering of fused ring electron acceptors for high performance organic solar cells显示文摘In this work, four fused ring electron acceptors(FREAs), 2F-C5, 2F-C6, 2F-C8 and 2F-C10, are developed to investigate the effect of side-chain size on the molecular properties and photovoltaic performance of FREA systematically. The elongation of side-chains in the FREAs not only improves their solubility in the processing solvent, but also enhances their miscibility with the donor PBDB-T. It helps the FREA diffuse into the donor PBDB-T during film-formation, thus leading to the decrease in domain size and domain purity from PBDB-T:2F-C5 to PBDB-T:2F-C10 blend films in sequence. The smaller domain size affords more D/A interfaces to benefit exciton dissociation and inhibit monomolecular recombination. However, severe bimolecular recombination occurs when the domain purity decreases to a critical point. Due to the dual function of the increment of side-chain length, both short-circuit current density(J_(SC)) and fill factor(FF) of devices exhibit an evolution of first increasing then decreasing from 2F-C5, 2F-C6, 2F-C8 to 2F-C10 based OSCs. The PBDB-T:2F-C8 based OSCs get a fine balance in morphology with moderate domain size as well as high domain purity simultaneously for the least charge carrier recombination, thus achieving the highest power conversion efficiency of 12.28% with the best J_(SC)(21.27 mA cm^(-2)) and FF(71.96%). | Fuwen Zhao Dan He Jingming Xin Shuixing Dai Han Xue Li Jiang Zhixiang Wei Wei Ma Xiaowei Zhan Yongfang Li Chunru Wang | 2019 | Science China Chemistry2019，62，6： | 1 |
| 6 | On the origin of SARS-CoV-2——The blind watchmaker argument显示文摘In the comparison with SARS-CoVof 2003,SARS-CoV-2 is extremely well adapted to the human populations and its adaptive shift from the animal host to humans must have been even more extensive.By the blind watchmaker argument,such an adaptive shift can only happen prior to the onset of the current pandemic and with the aid of step-by-step selection. | Chung-I Wu Haijun Wen Jian Lu Xiao-dong Su Alice CHughes Weiwei Zhai Chen Chen Hua Chen Mingkun Li Shuhui Song Zhaohui Qian Qihui Wang Bingjie Chen Zixiao Guo Yongsen Ruan Xuemei Lu Fuwen Wei Li Jin Le Kang Yongbiao Xue Guoping Zhao Ya-Ping Zhang | 2021 | Science China(Life Sciences)2021，64，9： | 1 |
| 7 | Rhodanine flanked indacenodithiophene as non-fullerene acceptor for efficient polymer solar cells显示文摘A fused-ring electron acceptor IDT-2BR1 based on indacenodithiophene core with hexyl side-chains flanked by benzothiadiazole rhodanine was designed and synthesized.In comparison with its counterpart with hexylphenyl side-chains(IDT-2BR),IDT-2BR1exhibits higher highest occupied molecular orbital(HOMO)energy but similar lowest unoccupied molecular orbital(LUMO)energy(IDT-2BR1:HOMO=-5.37eV,LUMO=-3.67eV;IDT-2BR:HOMO=-5.52eV,LUMO=-3.69eV),red-shifted absorption and narrower bandgap.IDT-2BR1 has higher electron mobility(2.2×10^(-3)cm^2 V^(-1)s^(-1))than IDT-2BR(3.4×10^(-4)cm^2 V^(-1)s^(-1))due to the reduced steric hindrance and ordered molecular packing.Fullerene-free organic solar cells based on PTB7-Th:IDT-2BRl yield power conversion efficiencies up to 8.7%,higher than that of PTB7-Th:IDT-2BR(7.7%),with a high open circuit voltage of0.95 V and good device stability. | Boyu Jia Yao Wu Fuwen Zhao Cenqi Yan Siya Zhu Pei Cheng Jiangquan Mai Tsz-Ki Lau Xinhui Lu Chun-Jen Su Chunru Wang Xiaowei Zhan | 2017 | Science China Chemistry2017，60，2： | 0 |
| 8 | Seed Propagation Technology and Quality Standards of Zhuoyou 1032显示文摘The breeder’s seeds of 56 A are produced through individual selection,sib mating in pairs and selection in isolation zone(net) plant line nursery.The foundation seeds are produced by isolated propagation of the breeder’s seeds,and the sterile line seeds for field production are produced by isolated propagation of the foundation seeds.The breeder’s seeds of restorer line 8020 R are produced by bagging and selfing and selection in isolation zone(net) plant line nursery,and the foundation seeds are produced by re-propagation.The hybrid seed production requires better isolation conditions,which can be realized using natural forests,mountains,rivers,roads(railways,highways),houses,etc.,and the isolation distance in open areas is equal to or larger than 800 m.It also requires early sowing of the male parent,so that the male parent can make full use of the light and temperature resources before winter to grow vegetatively,forming strong male parent plants that can provide more pollen.The seeds of the male parent are sown on September 8-10,and those of the female seeds are sown on September 12-16.Quality test is conducted during breeding and seed production in accordance with relevant national standards.The purity standards of the parent seeds are as follows: purity≥99%,neatness≥98%,germination rate≥80%,moisture≤9%,glucosinolate content≤20 μmol/g,and erucic acid content≤0.5%;the quality standards for parental field production seeds are as follows: purity≥98%,neatness≥98%,germination rate≥80% and moisture≤9%;and quality standards for hybrid seeds: purity≥85%,neatness≥98%,germination rate≥80% and moisture≤9%. | Hua WANG Hailin WANG Yao ZHAO Cong LU Fuwen KE | 2020 | Agricultural Biotechnology2020，9，2： | 0 |
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