查询词典 dopant

Due to the high concentration of Zni, as-grown ZnO is n-type semiconductor. Zni have strong compensation to the p-dopant, so the dopant should be screened in order to obtain effective p-doped ZnO.

我们的计算结果首次从理论上证明了ZnO的自然n型导电性与Zn子晶格的缺陷密切相关，而与氧子晶格的缺陷关系并不明显。

The conversion of Eu~(3+)→Eu~(2+) in KMgF_(3)∶Eu is almost 100% at the low dopant concentration and the saturant dopant is 0.29% molar fraction.

KMgF3具有典型的立方钙钛矿结构特征，是各向同性的强离子性晶体，被认为是理想的激光基质材料。

This study demonstrates optically and spatially band-tunable color cone lasers based on DDCLC cells with a photoisomerizable chiral dopant. The band-tunability is attributable to the recovery of the helix of the CLC resulted from the trans-cis isomerization induced decrease of the helical twisting power of the chiral dopant.The more the chiral cis-isomers are produced, the larger the tuned lasing band is.

本文主要藉由在胆固醇液晶射中加入可光致同素构化亲手性材，使胆固醇液晶所输出的彩色锥角射波段可光调控及空间调控，其射输出波段可调控的机制是由於当同素构化反应产生后，光致同素构化亲手性材的HTP值低并造成胆固醇液晶距改变，藉此间接调控输出的射波长，同素构化的程愈高，胆固醇液晶所输出的彩色锥角射波段可调控范围也愈大。

Sensing ability of PSS/PANI self-assembled film with different doping/dedoping structure to DMMP and CEES was investigated. Results demonstrate that the gas sensitivity of PSS/PANI self-assembled film is affected by the size of dopant counterions. Gas sensitivity of self-assembled film increases with increasing size of dopant counterions. It is found that sensing ability of PSS/PANI self-assembled film to DMMP increases significantly by redoping/dedoping EB-PSS/PANI film with sarin acid that has similar structure with DMMP.

首次考察了不同掺杂/脱掺杂结构的PSS/PANI自组装膜对化学战剂模拟剂DMMP和CEES的敏感性能，研究表明，掺杂酸对离子的尺寸大小对PSS/PANI自组装膜的气敏性有很大影响，较大的对离子尺寸有利于提高自组装膜的气敏性；并且发现采用与DMMP结构类似的沙林酸对EB-PSS/PANI自组装膜进行再掺杂-脱掺杂，能显著提高PSS/PANI自组装膜对DMMP的敏感性能。

For a same dopant Sb, the effect of the dopant rose with the increase of the doping amount.

对于同一种掺杂剂Sb，其作用随掺杂量的增大而增大。

For example, when there is only an alcohol as dopant, fiber-shaped nanostructure polyaniline is easily formed; when there is only a metallic ion as dopant, sphere-shaped nanostructure polyaniline is easily formed; when alcohol and metallic ion coexist, fibrous and sphere-shaped nanostructure polyaniline are formed at the same time.

如仅有醇类掺杂剂存在下，苯胺易于聚合成纤维状纳米结构的聚苯胺；仅有金属离子掺杂剂存在下，苯胺易于聚合成球形纳米结构的聚苯胺；在醇和金属离子掺杂剂共存时，苯胺能同时聚合成纤维状和球形纳米结构的聚苯胺。

In the paper,the effect of the variety and concentration of the dopant on the property of Zinc seleno sulphide based pigment was researched,and the principle selecting ideal dopant discussed.

文中主要研究了在硫硒化锌基颜料中，掺杂剂的种类和掺杂浓度对颜料性质的影响，讨论了理想的掺杂剂的选择原则。

It was shown that the improvement of electric properties in 1%Eu-PZT can be attributed to Eu donor doping, which decreases the concentration of defects such as oxygen vacancies and holes, while the degradation in fatigue and leakage current properties shown in the films with more than 1mol% Eu dopant results from the apparently dominant acceptor doping, which increases the concentration of oxygen vacancies and holes.

结果表明，1mol％Eu施主掺杂，可以减少氧空位以及空穴等缺陷浓度，因此1％Eu-PZT薄膜的极化疲劳和漏电流特性得到明显改善；高于1mol％Eu的受主掺杂作用使薄膜中氧空位以及空穴等缺陷浓度增加，导致PZT薄膜电学性能恶化。

Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南红豆杉中抗癌活性物制备工艺研究方法：利用正交设计试验L9(3~4)确定原料药提取工艺为：10倍量90％乙醇提取两次，第一次40分钟，第二次30分钟；醇提液用10倍量水沉；沉淀加6倍量石油醚40℃脱脂；用1mol／L的NaOH溶液碱洗，除去酸性杂质；以碱性氧化铝柱，以环己烷／丙酮为洗脱溶剂，在环己烷-丙酮(6：4)段富集到所需活性部位，洗脱剂用量为3VB。

Typical of the dopant chemistry is the reaction for arsine, which is depicted with the deposition process in Fig.

砷化三氢的反应是典型的掺杂化学反应，图9显示了该反应的淀积过程。

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。