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题目:

Light Manipulation for Organic Optoelectronics Using bio-inspired Moth’s Eye Nanostructures

 

 

作者:

Lei Zhou1*, Qing-Dong Ou1*, Jing-De Chen1*, Su Shen2, Jian-Xin Tang1, Yan-Qing Li1 & Shuit-Tong Lee1

 

 

单位:

1Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China,

2Institute of Information Optical Engineering, Soochow University, Suzhou 215006, China.

 

 

摘要:

Organic-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 moth’s 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 A21 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.

 

 

影响因子:

5.078

 

 

分区情况:

2

 

 

链接:

http://www.nature.com/srep/2014/140210/srep04040/full/srep04040.html


 

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