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首页> 外文期刊>Nanotechnology >Phase, current, absorbance, and photoluminescence of double and triple metal ion-doped synthetic and salmon DNA thin films
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Phase, current, absorbance, and photoluminescence of double and triple metal ion-doped synthetic and salmon DNA thin films

机译：双金属离子掺杂合成合成纤维和三文鱼DNA薄膜的相位，电流，吸光度和光致发光

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摘要

We fabricated synthetic double-crossover (DX) DNA lattices and natural salmon DNA (SDNA) thin films, doped with 3 combinations of double divalent metal ions (M2+)-doped groups (Co2+-Ni2+, Cu2+-Co2+, and Cu2+-Ni2+) and single combination of a triple M2+-doped group (Cu2+-Ni2+-Co2+) at various concentrations of M2+ ([M2+]). We evaluated the optimum concentration of M2+ ([M2+](O)) (the phase of M2+-doped DX DNA lattices changed from crystalline (up to ([M2+](O)) to amorphous (above [M2+](O))) and measured the current, absorbance, and photoluminescent characteristics of multiple M2+-doped SDNA thin films. Phase transitions (visualized in phase diagrams theoretically as well as experimentally) from crystalline to amorphous for double (Co2+-Ni2+, Cu2+-Co2+, and Cu2+-Ni2+) and triple (Cu2+-Ni2+-Co2+) dopings occurred between 0.8mM and 1.0mM of Ni2+ at a fixed 0.5mM of Co2+, between 0.6mM and 0.8mM of Co2+ at a fixed 3.0mM of Cu2+, between 0.6mM and 0.8mM of Ni2+ at a fixed 3.0mM of Cu2+, and between 0.6mMand 0.8mMof Co2+ at fixed 2.0mM of Cu2+ and 0.8mM of Ni2+, respectively. The overall behavior of the current and photoluminescence showed increments as increasing [M2+] up to [M2+](O), then decrements with further increasing [M2+]. On the other hand, absorbance at 260 nm showed the opposite behavior. Multiple M2+-doped DNA thin films can be used in specific devices and sensors with enhanced optoelectric characteristics and tunable multi-functionalities.
机译：我们制造了合成双交叉（DX）DNA格子和天然鲑鱼DNA（SDNA）薄膜，掺杂双二价金属离子（M2 +）掺杂基团（CO 2 + -NI2 +，CU2 + -CO2 +，CU2 + -NI2 +）在各种浓度的M2 +（[M2 +]）上的三重M2 +掺杂基团（Cu2 + -NI2 + -CO2 +）的单一组合。我们评估了M2 +（[M2 +]（O））的最佳浓度（M2 +掺杂的DX DNA格子的相位从结晶（高达（[M2 +]（O）））加入无定形（上方[M2 +]（O）） ）测量多个M2 +掺杂的SDNA薄膜的电流，吸光度和光致发光特性。相变（理论上和实验在实验中可视化），从结晶到双晶（CO 2 + -NI2 +，Cu2 + -CO2 +和Cu2 + -NI2 +）和三相（Cu2 + -NI2 + -CO2 +）掺杂在0.8mm和1.0mm的Ni2 +之间，固定在0.5mm的CO 2 +，0.6mm和0.8mm的CO 2 +的CU2 +的CU2 +，介于0.6mm之间。在固定的3.0mm的Cu2 +的固定3.0mm的Ni2 +中，分别为0.6mm和0.8mmOF的Cu2 +和0.8mm的Ni2 +的0.6mmAds 0.8mmof Co2 +。当前和光致发光的总体行为显示为增加[M2 +]的增量[M2 +]（O），然后递增[M2 +]。另一方面，260nm处的吸光度显示出相反的行为。多个M2 +掺杂的DNA薄膜可用于特定的装置和传感器，具有增强的光电特性和可调谐多功能。

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