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首页> 外文会议>SPIE Conference on Quantum dots, Particles, and Nanoclusters >Single-Mode Light Source Fabrication Based on Colloidal Quantum Dots
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Single-Mode Light Source Fabrication Based on Colloidal Quantum Dots

机译：基于胶体量子点的单模光源制造

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摘要

There are huge market demands for innovative, cheap and efficient light sources, including light emitting devices, such as LEDs and lasers. However, the light source development in the visible spectral range encounters significant difficulties these years. The available visible wavelength LEDs or lasers are few, large and expensive. The main challenge lies at the lack of efficient light media. Semiconductor nanocrystal quantum dots (QDs) have recently commanded considerable attention. As a result of quantum confinement effect, the emission color of these QDs covers the whole visible spectral range and can be modified dramatically by simply changing their size. Such spectral tunability, together with large photoluminescence quantum yield and photostability, make QDs attractive for potential applications in a variety of light emitting technologies. However, there are still several technical problems that hinder their application as light sources. One main issue is how to fabricate these QDs into a solid state device while still retaining their original optical emission properties. A vacuum assisted micro-fluidic fabrication of guided wave devices has demonstrated low waveguide propagation loss, lower crosstalk, and improved waveguide structures. We report herein the combination of the excellent emission properties of QDs and novel vacuum assisted micro-fluidic photonic structure fabrication technique to realize single-mode efficient light sources.
机译：对创新，便宜和高效的光源有巨大的市场需求，包括发光器件，如LED和激光器。然而，这几年可见光谱范围内的光源开发遇到了显着的困难。可用的可见波长LED或激光器很少，大而昂贵。主要挑战在于缺乏高效的轻型媒体。半导体纳米晶体量子点（QDS）最近引起了相当大的关注。由于量子限制效果，这些QD的发光颜色覆盖了整个可见光谱范围，并且通过简单地改变其尺寸可以显着地修改。这种光谱可调性与大的光致发光量子产量和光稳定性一起，使QDS具有吸引力，对于各种发光技术中的潜在应用。但是，仍有几个技术问题妨碍了他们的应用作为光源。一个主要问题是如何在仍然保留原始光发射属性的同时将这些QDS制造成固态设备。引导波装置的真空辅助微流体制造已经表现出低波导传播损失，下串扰和改进的波导结构。我们在本文中报告了QD和新型真空辅助微流体光子结构制造技术的优异排放性能，实现了单模高效光源。

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