深圳大学学报理工版

银纳米线是一种制备柔性电极的理想材料.本研究采用喷涂方法,在聚对苯二甲酸乙二醇酯(polyethylene terephthalate, PET)衬底上制备方阻为33 Ω/sq、 λ=620 nm处光学透过率为87%的银纳米线透明导电薄膜.所制备薄膜在空气中具有较好稳定性,其方阻在46 d内未发生明显变化.弯曲测试结果表明,在纳米线结处的应力影响下,薄膜方阻先增大后保持相对稳定.将制备的银纳米线透明导电薄膜作为阴极,成功制备了红光CdS@ZnS量子点发光二极管,表明喷涂法制备银纳米线柔性电极可行,可为制备稳定的银纳米线柔性电极提供一种简单、低成本、可大规模生产的方法.

Silver nanowire is a kind ideal material for preparing flexible electrodes. We prepare a silver nanowires based transparent conductive film on polyethylene terephthalate(PET)substrate by simple spray coating. The film can keep long-term stability with sheet resistance without obvious changes in 46 days. The sheet resistance and transmittance can reach 33 Ω/sq and 87% at λ=620 nm, respectively. The cycle bending tests show that the sheet resistance increases first and then keeps unchanged under the strains from the junction of the silver nanowires. Using the film as the cathode, we successfully fabricate a CdS@ZnS based quantum dot light emitting diode(LED), which demonstrates that this study provides a feasible simple, low-cost and large-scale production method for the preparation of stable silver nanowires based flexible electrodes.

引言
1 实验
2 结果与讨论
3 结语

图1 喷涂4次的银纳米线透明导电薄膜SEM图<br/>Fig.1 SEM photograph of silver nanowires based transparent conductive film by spray coating 4 times

图1 喷涂4次的银纳米线透明导电薄膜SEM图
Fig.1 SEM photograph of silver nanowires based transparent conductive film by spray coating 4 times

图2 不同喷涂次数的银纳米线薄膜方阻<br/>Fig.2 Sheet resistance of silver nanowires based transparent conductive film with different spray coating times

图2 不同喷涂次数的银纳米线薄膜方阻
Fig.2 Sheet resistance of silver nanowires based transparent conductive film with different spray coating times

图3 不同喷涂次数下银纳米线薄膜的紫外-可见光透过光谱<br/>Fig.3 (Color online)UV-VIS spectra of silver nanowires based transparent conductive film with different spray coating times

图3 不同喷涂次数下银纳米线薄膜的紫外-可见光透过光谱
Fig.3 (Color online)UV-VIS spectra of silver nanowires based transparent conductive film with different spray coating times

表1 不同喷涂次数的银纳米线透明导电薄膜的方阻及其在620 nm处的光透过率<br/>Table 1 Resistance and transmittance at 620 nm of the silver nanowires based transparent conductive film with different spray coating times

表1 不同喷涂次数的银纳米线透明导电薄膜的方阻及其在620 nm处的光透过率
Table 1 Resistance and transmittance at 620 nm of the silver nanowires based transparent conductive film with different spray coating times

图4 喷涂4次的银纳米线薄膜的方阻在空气中的稳定性<br/>Fig.4 Sheet resistance of silver nanowires based transparent conductive film by spray coating 4 times changed with time

图4 喷涂4次的银纳米线薄膜的方阻在空气中的稳定性
Fig.4 Sheet resistance of silver nanowires based transparent conductive film by spray coating 4 times changed with time

图5 喷涂4次的银纳米线薄膜的方阻抗弯折测试<br/>Fig.5 Cycle bending measurement of silver nanowires based transparent conductive film by spray coating 4 times

图5 喷涂4次的银纳米线薄膜的方阻抗弯折测试
Fig.5 Cycle bending measurement of silver nanowires based transparent conductive film by spray coating 4 times

图6 基于银纳米线电极的量子点LED及其电致发光性能的测试<br/>Fig.6 (Color online)Silver nanowires electrode based quantum dots LED and the test of electroluminescence performance

图6 基于银纳米线电极的量子点LED及其电致发光性能的测试
Fig.6 (Color online)Silver nanowires electrode based quantum dots LED and the test of electroluminescence performance

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备注

引言

1 实验

2 结果与讨论

3 结语

期刊信息

备注

引言

1 实 验

2 结果与讨论

3 结 语

期刊信息

1 实验

3 结语