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electron affinity     
相关语句
  电子亲和势
     The electron affinity of Na 2KSb,Na 2KSb+Cs and(Na 2KSb+Cs)+Sb+Cs is 0.70~0.91 eV,0.35~0.41 eV and 0.33 eV respective1y. The difference of the electron affinity reflects difference of photo cathode preparation technology.
     Na2 KSb、Na2 KSb +Cs和 [Na2 KSb +Cs]+Sb +Cs的电子亲和势分别为 0 .7~ 0 .91eV ,0 .35~ 0 .4 1eV和 0 .33eV ,并认为电子亲和势的差异取决于阴极工艺的差别。
短句来源
     Their band gaps (Eg), electron affinity (E_A) and ionization potentials (P_I) calculated are 2.51-2.82 eV, 2.69-3.62 eV and 5.41-5.82 eV, respectively, indicating that compounds are good candidates as electroluminescent materials with good hole-transporting property.
     在2.51~2.82eV,电离势(P_I)在5.41~5.82eV,电子亲和势(E_A)在2.69~3.62 eV。 数据表明化合物具有较宽的带隙,有望成为优良的空穴高效注入和传输的有机电致发光材料。
短句来源
     Compared to D-π-A-π-D compounds, the intermolecular charge transfer (ICT) of D-π-A-π-A compounds increased with the enhancement of the electron affinity (E_A), which might result in high two-photon absorption cross-section.
     D-π-A-π-A结构和D-π-A-π-D相比,由于分子末端强吸电子基团的引入,电子亲和势(E_A)增加,分子内的电荷转移增强,有可能成为较大双光子吸收截面的光电材料。
短句来源
     Results showed that title compounds have higher electron affinity energy(3.8~4.0 eV) than widely used as electron tansporting material PBD((2.82 eV).)
     结果表明,标题化合物的电子亲和势为3.8~4.0 eV,高于常用电子传输材料2-(4-联苯基)-5-(叔丁苯基)-1,3,4-噁二唑(2.82 eV),具有较好的电子传输性能。
短句来源
     Our preliminary results indicated that alternating addition of Sb and K may determine whether Na_2KSb compound is the p-or n-conducting type and that Cs sensitization may reduce its electron affinity and extend the spectral response cut-off wavelength.
     研究结果表明,Sb,K交替决定双碱化合物Na_2KSb的导电类型,Cs处理降低Na_2KSb的电子亲和势,延伸长波阈;
短句来源
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  电子亲合势
     Systematic theoretical methods have been used to study the thermochemical properties of NH 2,NH 2 +,NH 2 - ,such as dissociation energy(DE),electron affinity(EA),ionization energy(IE),proton affinity(PE) and atomization energy(AE). These methods involve Gaussian n methods: G1,G2,G2 (MP2) and CBS n methods: CBS 4,CBS q,CBS Q,CBS APNO.
     利用系统的理论方法研究NH2,NH2+,NH2-体系的物理化学性质:解离能,电子亲合势,离化能,质子亲合势,原子化能.这些方法有Gaussian-n:G1,G2,G2(MP2)以及CBS-n:CBS-4,CBS-q,CBS-Q,CBS-APNO.对所得结果及其误差进行比较和分析.
短句来源
     It is found that electron-withdrawing substituents (-CN, -F) cause the incre- ase of electron affinity, and electron-donatnig groups (-CH_3, -NH_2) decrease the ionization potential of the polymers.
     吸电子基团(-CN,-F)的取代使体系的电子亲合势和电离势增大,而给电子基团(-CH_3,-NH_2)的取代,则使体系的电离势降低。
短句来源
     Systematic theoretical methods have been used to study thermochemical properties of NH,NH +,NH -,such as dissociation energy(DE),electron affinity(EA),ionization energy(IE),proton affinity(PE)and atomization energy(AE). These methods involve Gaussian n methods:G1,G2,G2(MP2)and CBS n methods:(CBS 4,CBS q,CBS Q,CBS APNO).
     利用系统的理论方法研究NH,NH+,NH-体系的物理化学性质:解离能,电子亲合势,离化能,质子亲合势,原子化能.这些方法有Gaussian-n:G1,G2,G2(MP2)以及CBS-n:CBS-4,CBS-q,CBS-Q,CBS-APNO.对所得结果及其误差进行比较和分析.
短句来源
     Theoretical Calculation of the Electron Affinity of BO Molecule
     BO分子电子亲合势的理论计算
短句来源
     On the basis of it, a novel PPV derivative poly(2-pentyloxy-3, 5-dibromine-1, 4-phenylene vinylene) (PPDBPV) carrying on both electron donating group and electron withdrawing group is prepared to improve the electron affinity of PPV. The monomers are polymerized under Gilch dehydrochlorination conditions.
     在此基础上,针对PPV电子亲合势低的缺点设计并合成了国内外未见报道的主链苯环上同时含给电子基团和吸电子基团的新型PPV衍生物聚(2-戊氧基-3,5-二溴-1,4-亚苯基亚乙烯)(PPDBPV)。
短句来源
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  电子亲合能
     Structure and Electron Affinity of Silicon Si_n/Si_n~-(n=7~10)
     Si_n/Si_n~-(n=7~10)的结构和电子亲合能的研究
短句来源
     The sequence is the same as the electron affinity sequence,While the electron affinity of the chalcogenide elements is 1.47,2.02,2.07eV,respectively.
     这一顺序与它们相应元素的电子亲合能顺序相同(分别为1.47,2.02,2.07eV)。 从而,纠正了根据离子大小为预测的结果O2-<S2-<Se2-。
短句来源
     Gold and silver havedramatically different properties, for example, in color, ionization energy, stable oxidationstate, electron affinity and formation of two atoms molecule and negative oxidation statecompound.
     如金与银在颜色、电离能、稳定氧化态、电子亲合能以及双原子分子和负氧化态化合物的生成等方面有显著差异,这是由于6s_(1/2)轨道的相对论收缩,使能级下降;
短句来源
     The results of vertical ionization protential(VIP) and vertical electron affinity(VEA) indicate that fullerene—barbituric acid remains most properties of C_(60) , but it is less stable and higher reactive than C_(60) .
     最后通过分子的垂直亲合能与电子亲合能的计算,表明掺杂后的[60]富勒烯—巴比妥酸很好的保留了C_(60)特性,稳定性却比C_(60)差,但它具有更高的化学活性,易发生二次加成反应。
短句来源
     Softness and hardness scale U of atoms is estimated and predicted more precisely together with their ionization potential P and electron affinity Q by density functional theory (DFT) combined with either local density approximation (LDA) or with further global corrections for exchange included self-consistently (LDB: LDA-GCE) as well as modified Slater transition-state method (MST) and definite-differentiation method (DDM) under partial consideration of relativistic effects.
     应用密度泛函论(DFT)及其局域近似法(LDA)、局域近似法加全域性校正(LDB: LDA GCE)和改进斯莱特过渡态法(MST), 并依能量型标度定义, 采用有限差分法(DDM), 同时考虑相对论效应, 对元素电离能 P和电子亲合能Q 及原子软硬度U等进行精确估计与理论预测.
短句来源
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  电子亲和力
     Diamond is a material of negative electron affinity, which can be used to fabricate electron emitter in FED (DFED) to reduce the work function, hence reduce the working voltage.
     金刚石膜具有负的电子亲和力特性,利用它作为发射器的电子发射材料制成的金刚石膜场发射器,有效功函数很小,因此工作电压可以大大降低。
短句来源

 

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  electron affinity
At atmospheric pressure in a low-temperature plasma containing electronegative components with significant electron affinity (of the order of or greater than 1.5 eV) considerable negative ion concentrating may occur.
      
The possibility of using fullerenes as matrices with a high electron affinity is shown.
      
Electron affinity and substituent effects in radical anions
      
The photoemission of electrons from a p+-GaAs surface with negative electron affinity was studied experimentally at 4.2 K.
      
The refraction of thermalized photoelectrons emitted into vacuum from p+-GaAs-(Cs,O) with a negative electron affinity was observed.
      
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