Vol 4: Light Manipulation for Organic Optoelectronics Using Bio-inspired Moths Eye Nanostructures.Report as inadecuate



 Vol 4: Light Manipulation for Organic Optoelectronics Using Bio-inspired Moths Eye Nanostructures.


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This article is from Scientific Reports, volume 4.AbstractOrganic-based optoelectronic devices, including light-emitting diodes OLEDs and solar cells OSCs hold great promise as low-cost and large-area electro-optical devices and renewable energy sources. However, further improvement in efficiency remains a daunting challenge due to limited light extraction or absorption in conventional device architectures. Here we report a universal method of optical manipulation of light by integrating a dual-side bio-inspired moths eye nanostructure with broadband anti-reflective and quasi-omnidirectional properties. Light out-coupling efficiency of OLEDs with stacked triple emission units is over 2 times that of a conventional device, resulting in drastic increase in external quantum efficiency and current efficiency to 119.7% and 366 cd A−1 without introducing spectral distortion and directionality. Similarly, the light in-coupling efficiency of OSCs is increased 20%, yielding an enhanced power conversion efficiency of 9.33%. We anticipate this method would offer a convenient and scalable way for inexpensive and high-efficiency organic optoelectronic designs.



Author: Zhou, Lei; Ou, Qing-Dong; Chen, Jing-De; Shen, Su; Tang, Jian-Xin; Li, Yan-Qing; Lee, Shuit-Tong

Source: https://archive.org/







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