Patterning Rainbowlike Amplified Spontaneous Emission Arrays for Full-Color CsPbX3 Quantum Dot Film Displays,Chemistry of Materials

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Patterning Rainbowlike Amplified Spontaneous Emission Arrays for Full-Color CsPbX3 Quantum Dot Film Displays
Chemistry of Materials ( IF 7.2 ) Pub Date : 2020-11-09 , DOI: 10.1021/acs.chemmater.0c03098
Haihua Zhang ₁ , Jiannian Yao _{1,

2} , Hongbing Fu _{1,

3}

Affiliation

Large-area multicolor laser arrays on the nano- to microscale are key components for the development of on-chip nanophotonics and next-generation color display technology, which remain a formidable task owing to the material lattice mismatch and low-resolution patterning techniques. Here, we demonstrated multicolor-amplified spontaneous emission (ASE) arrays on single-chip integration by patterning CsPbX₃ (X = Cl, Br, and I) quantum dot films through a rapid vapor-phase halide ion exchange strategy. Stoichiometrically tunable ASEs were achieved across the whole visible spectral range with similar low thresholds. When the multicolor ASE arrays were further miniaturized to microscale, a spatial definition of 12.5 μm could be achieved, corresponding to an image resolution of up to 2030 pixel per inch.

中文翻译：

为全彩CsPbX ₃量子点薄膜显示器构图彩虹状放大的自发发射阵列。

纳米到微米级的大面积多色激光阵列是片上纳米光子学和下一代彩色显示技术发展的关键组件，由于材料晶格失配和低分辨率构图技术，它们仍然是一项艰巨的任务。在这里，我们通过图案化CsPbX ₃（X展示了单芯片集成上的多色放大自发（ASE）阵列= Cl，Br和I）通过快速气相卤化物离子交换策略的量子点膜。在整个可见光谱范围内以相似的低阈值实现了化学计量可调的ASE。当将多色ASE阵列进一步小型化至微米级时，可以实现12.5μm的空间分辨率，相当于高达2030像素/英寸的图像分辨率。

更新日期：2020-11-25

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