Organic Upconversion Display with an over 100% Photon-to-photon Upconversion Efficiency and a Simple Pixelless Device Structure,The Journal of Physical Chemistry Letters

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Organic Upconversion Display with an over 100% Photon-to-photon Upconversion Efficiency and a Simple Pixelless Device Structure
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2018-11-06 00:00:00 , DOI: 10.1021/acs.jpclett.8b02738
Qiaogang Song _{1,

2,

3} , Tong Lin _{2,

3} , Zisheng Su _{1,

2} , Bei Chu ₂ , Huishan Yang ₁ , Wenlian Li ₂ , Chun-Sing Lee ₄

Affiliation

Compared to traditional near-infrared (NIR) imaging devices, NIR-to-visible upconversion displays, which integrated a NIR photodetector with a visible light-emitting diode, have merits of simple device structure, low cost, high resolution, and a simple pixelless structure. However, photon-to-photon upconversion efficiencies of these devices are typically much lower than unity. Here we report an all-organic NIR-to-visible upconversion display with a photon-to-photon upconversion efficiency higher than 100% by integrating a photomultiplying organic NIR photodetector with a high-efficiency thermally activated delayed fluorescent organic light-emitting diode. To the best of our knowledge, this is the first report showing a photon-to-photon upconversion efficiency over 100% without using a built-in transistor for current amplification.

中文翻译：

有机上转换显示器具有超过100％的光子到光子上转换效率和简单的无像素器件结构

与传统的近红外（NIR）成像设备相比，将近红外（NIR）光电探测器与可见光发光二极管集成在一起的近红外到可见光上转换显示器具有以下优点：设备结构简单，成本低，分辨率高且像素简单结构体。但是，这些器件的光子到光子上转换效率通常远低于统一的效率。在这里，我们通过将光电倍增有机NIR光电探测器与高效热激活的延迟荧光有机发光二极管集成在一起，报告了一种全有机NIR到可见光的上转换显示器，其光子到光子的上转换效率高于100％。据我们所知，这是第一份报告，显示了在不使用内置晶体管进行电流放大的情况下，光子到光子的上转换效率超过100％。

更新日期：2018-11-06

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