The Counter Anionic Size Effects on Electrochemical, Morphological, and Luminescence Properties of Electrochemically Deposited Luminescent Films
The Counter Anionic Size Effects on Electrochemical, Morphological, and Luminescence Properties of Electrochemically Deposited Luminescent Films
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反阴离子尺寸对电化学沉积发光薄膜的电化学、形态和发光性能的影响
DOI：
10.1149/1.2844453
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发表时间：
2008-05
影响因子：
3.9
通讯作者：
中科院分区：
文献类型：
--
作者：
氧化铟锡玻璃上电沉积（ED）发光薄膜被考虑应用于低成本发光器件。在 ED 过程中，阴离子对所得 ED 薄膜的质量起着重要作用。采用三种不同阴离子大小的支持电解质TBA-X（TBA=正四丁基铵，X=BF-4、PF-6和AsF-6）以支化咔唑发光前体TCPC制备ED薄膜。增加阴离子的尺寸（BF - 4 < PF - 6 < AsF - 6 ）导致生长速率增加并改善ED薄膜的形貌。以TBA-AsF 6 作为支持电解质制备的ED薄膜显示出较强的荧光，效率为65%，明显高于较小阴离子BF-4和PF-6的ED薄膜。通过利用ED薄膜作为发光层，随着电解质中阴离子尺寸的增加，发光器件的性能也得到了改善。观察到的反阴离子尺寸对 ED 薄膜的电化学、形态和发光性能的影响可归因于咔基阳离子和阴离子之间相互作用的差异，这导致了更容易（即，对于较大尺寸的离子）或困难（即，对于较小尺寸的离子）去掺杂过程。
Luminescent films electrodeposited (ED) on indium tin oxide glass are considered for application in low-cost luminescent devices. During ED processes, the anions play an important role in the quality of resultant ED films. Three species of supporting electrolytes TBA-X (TBA = n-tetrabutylammonium, X = BF - 4 , PF - 6 , and AsF - 6 ) with different size of anions were used for the preparation of ED films from a branched carbazyl luminescent precursor TCPC. Increasing the size of anions (BF - 4 < PF - 6 < AsF - 6 ) resulted in an increase of growth rate and improved the morphology of ED films. The ED film prepared using TBA-AsF 6 as supporting electrolyte showed strong fluorescence with efficiency of 65%, which was significantly higher than that of ED films from the smaller anions BF - 4 and PF - 6 . By utilizing the ED films as emitting layer, the light-emitting device also showed improved performance with increasing size of anions in the electrolytes. The origin of observed counter anionic size effects on electrochemical, morphological, and luminescent properties of ED films can be attributed to the difference in interaction between the carbazyl cation and anions, which induced an easier (i.e., for the larger size ions) or difficult (i.e., for the smaller size ions) dedoping process.
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影响因子：
4.5
作者：
S. Vico;V. Carlier;C. Buess-Herman
通讯作者：
S. Vico;V. Carlier;C. Buess-Herman
影响因子：
4.4
作者：
Magdalena Tagowska;B. Palys;K. Jackowska
通讯作者：
Magdalena Tagowska;B. Palys;K. Jackowska
影响因子：
2.5
作者：
U. Rammelt;Sven Bischoff;M. El-Dessouki;R. Schulze;W. Plieth;L. Dunsch
通讯作者：
U. Rammelt;Sven Bischoff;M. El-Dessouki;R. Schulze;W. Plieth;L. Dunsch
影响因子：
4.4
作者：
Li, YF;Ouyang, JY
通讯作者：
Ouyang, JY
影响因子：
2.9
作者：
A. Sezai Sarac;M. Ates;E. Parlak
通讯作者：
A. Sezai Sarac;M. Ates;E. Parlak