Enhanced Luminous Efficiency and Brightness Using DNA Electron Blocking Layers in Bio-Organic Light Emitting Diodes
Enhanced Luminous Efficiency and Brightness Using DNA Electron Blocking Layers in Bio-Organic Light Emitting Diodes
复制标题
在生物有机发光二极管中使用 DNA 电子阻挡层提高发光效率和亮度
DOI：
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
J. Hagen
中科院分区：
文献类型：
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作者：
J. Hagen
从三文鱼（saDNA）中提取生物聚合物脱氧核糖核酸（DNA），并成功地作为电子阻挡层（EBL）应用于有机发光二极管（OLED）的多种结构中。水溶性saDNA与阳离子表面活性剂十六烷基三甲基氯化铵（CTMA）络合，得到的DNA-CTMA分子不溶于水，可溶于醇等常见有机介质。DNA-CTMA和丁醇溶液通过改变自旋涂覆参数和分子量，制备厚度为20nm - 5微米的均匀薄膜。DNA-CTMA薄膜的光学特性包括高透明度和低光学损耗，适用于波长超过400nm的应用。DNA-CTMA薄膜的电阻率约为10 Ωcm。所有这些特性使DNA-CTMA成为oled中EBL的候选器件，这种器件被称为生物有机发光二极管（BioLED）。在绿色和蓝色发光的生物发光二极管中都证明了电致发光效率的提高。所得到的绿色和蓝色bioled的最大发光效率分别为8.2和0.8 cd/ a。基于DNA的生物OLED的效率是OLED的10倍，亮度是OLED的30倍。性能的增强是由于0.9 eV（最低未占据分子轨道）值的电子阻断作用，允许空穴注入以5.6eV（最高已占据分子轨道）值进行。
The biopolymer deoxyribonucleic acid (DNA) has been extracted from salmon (saDNA) and used successfully as an electron blocking layer (EBL) in multiple structures of Organic Light Emitting Diodes (OLED). Water soluble saDNA was complexed with a cationic surfactant hexadecytrimethylammonium chloride (CTMA) which makes the resulting DNA-CTMA molecule water insoluble, and soluble in common organic media such as alcohols. Solutions of DNA-CTMA and butanol make uniform thin films from 20nm to 5 microns in thickness by varying spin coating parameters and molecular weight. The optical properties of DNA-CTMA thin films include high transparency and low optical loss for applications at wavelengths above 400nm. The DNA-CTMA films have an electrical resistivity on the order of 10 Ωcm. All of these properties combined made DNA-CTMA a candidate as an EBL in OLEDs, and this resulting device was termed a Bio-organic Light Emitting Diode (BioLED). Enhanced electroluminescent efficiency has been demonstrated in both green and blue emitting BioLEDs. The resulting green and blue BioLEDs showed a maximum luminous efficiency of 8.2 and 0.8 cd/A, respectively. The DNA based BioLEDs were as much as 10× more efficient and 30× brighter than their OLED counterparts. The enhancement in performance is due to the electron blocking action with the 0.9 eV (lowest unoccupied molecular orbital) value, allows hole injection to proceed with a 5.6eV (highest occupied molecular orbital) value.
DOI：
10.1073/pnas.0402756101
发表时间：
2004-09
影响因子：
11.1
作者：
T. Takada;K. Kawai;M. Fujitsuka;T. Majima
通讯作者：
T. Takada;K. Kawai;M. Fujitsuka;T. Majima
电致发光作为探针阐明 DNA-CTMA 层的导电性
DOI：
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发表时间：
2004
期刊：
Appl.Phys.Lett. 85
影响因子：
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作者：
H.Kurosu;M.Kawasaki;M.Hirose;M.Yamada;S.Kang;J.Thisayukta;M Sone;H.Takezoe;J.Watanabe;Kunio Hirata
通讯作者：
Kunio Hirata