New light from hybrid inorganic-organic emitters
New light from hybrid inorganic-organic emitters
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DOI：
10.1088/0022-3727/41/9/094006
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发表时间：
2008-05-07
影响因子：
3.4
通讯作者：
Bradley, D. D. C.
中科院分区：
文献类型：
--
作者：
Belton, C. R.;Itskos, G.;Bradley, D. D. C.
我们提出了一个混合无机-有机发光体的研究计划的亮点。这些器件结合了联合收割机在III-V族氮化物技术（包括紫外线发射微阵列和专门定制的量子威尔斯）与共轭聚合物的最新发展，以访问整个可见光谱。两种类型的设备进行了研究，那些基于辐射转移的量子阱发射的下转换和那些基于非辐射共振能量转移。详细描述了器件的光谱和工作特性。可选择的颜色微阵列和条发射器进行了演示。非辐射能量转移过程的性质也进行了研究，我们发现在15 K的转移效率高达43%，与1/R-2依赖于量子阱和聚合物层之间的距离，表明平面-平面相互作用。非辐射共振能量转移过程的相对重要性随着温度的增加而增加，在300 K时，比辐射转移过程效率高20倍。
We present the highlights of a research programme on hybrid inorganic - organic light emitters. These devices combine recent developments in III-V nitride technology ( including UV emitting micro-arrays and specifically tailored quantum wells) with conjugated polymers to access the entire visible spectrum. Two types of devices are studied, those based on down conversion of the quantum well emission by radiative transfer and those based on non-radiative resonant energy transfer. The spectral and operating characteristics of the devices are described in detail. Selectable colour micro-arrays and bar emitters are demonstrated. The nature of the non-radiative energy transfer process has also been studied and we find transfer efficiencies of up to 43% at 15 K, with a 1/R-2 dependence on the distance between quantum well and polymer layer, suggesting a plane - plane interaction. The relative importance of the non-radiative resonant energy transfer process increases with temperature to be up to 20 times more efficient, at 300 K, than the radiative transfer process.