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铅卤钙钛矿材料由于其优异的光致和电致发光性能，如大的吸收系数、高的载流子迁移率和发光量子产率等，在太阳能电池、发光二极管等领域具有重要的应用前景。然而，铅的毒性及较差的物化及光稳定性限制了其实际应用。为了降低毒性及改善发光性能，无铅金属卤化物得到了广泛的研究，但他们通常在紫外区域有强的吸收，很难被商用蓝光芯片激发，从而限制了其在WLEDs的发光效率与应用。因此我们基于广西的丰富锰资源， 开展锰基钙...
Spectral spatial coherence of high-power multi-chip LEDs
Spectral spatial coherence high-power multi-chip LEDs
2013/7/3
We investigate the spatial coherence of the light generated from high-power multi-chip red LEDs by using the van Cittert-Zernike theorem. It is theoretically demonstrated that the light generated from...
In the pursuit of environmentally-friendly lighting, organic LEDs have long been touted as an attractive option. They could be significantly more efficient than conventional lighting and unlike fluore...