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Facile synthesized ZnO microcrystals for random microlasers and incandescent-type light sources†
CrystEngComm ( IF 2.6 ) Pub Date : 2019-09-20 , DOI: 10.1039/c9ce01343a Jiaolong Ji 1, 2, 3, 4 , Mingming Jiang 1, 2, 3, 4, 5 , Wangqi Mao 1, 2, 3, 4 , Peng Wan 1, 2, 3, 4 , Caixia Kan 1, 2, 3, 4, 5
CrystEngComm ( IF 2.6 ) Pub Date : 2019-09-20 , DOI: 10.1039/c9ce01343a Jiaolong Ji 1, 2, 3, 4 , Mingming Jiang 1, 2, 3, 4, 5 , Wangqi Mao 1, 2, 3, 4 , Peng Wan 1, 2, 3, 4 , Caixia Kan 1, 2, 3, 4, 5
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In this context, well-crystallized ZnO microcrystals (MCs) with a well-faceted smooth surface were successfully synthesized. Due to the outstanding optical response and well-faceted crystallites, the as-synthesized low-dimensional crystals were employed to construct ultraviolet microsized random lasers. Additionally, the micro/nanocrystal being foreseen as key elements were deposited on the pre-synthesized Ga-doped ZnO microwires (ZnO/ZnO:Ga MWs) using a two-step vapor-transporting synthesis method. By adjusting the as-synthesized condition, the incorporation of ZnO MCs can be utilized to tailor the fundamental optical and electronic transport properties of the pre-synthesized MWs. In particular, a single ZnO/ZnO:Ga MW was selected to construct a typical incandescent light source, with the lighting being color-tuned in a wide spectral region. The intrinsic working principle of the color-tuning electroluminescence may be attributed to type-II energy band alignment towards the interface of ZnO/ZnO:Ga. Therefore, individual ZnO/ZnO:Ga MWs can endow a new sense of the oldest and simplest incandescent-type sources. It can be anticipated that the lighting features of ZnO MC sheathed ZnO:Ga MW radial structures are extremely attractive for potential applications in ZnO based optoelectronic devices, such as microsized diodes and lasers, waveguides, high gain photodetectors, etc.
中文翻译：
用于随机微激光器和白炽灯型光源的便捷合成ZnO微晶†
在这种情况下，成功地合成了具有良好切面光滑表面的结晶良好的ZnO微晶（MCs）。由于出色的光学响应和精心设计的微晶，合成后的低维晶体被用于构建紫外微尺寸的随机激光器。另外，使用两步气相传输合成方法，将预见到的作为关键元素的微/纳米晶体沉积在预先合成的Ga掺杂的ZnO微线（ZnO / ZnO：Ga MWs）上。通过调整合成后的条件，可以利用ZnO MC的加入来调整预合成MW的基本光学和电子传输性质。尤其是，选择了一个ZnO / ZnO：Ga MW来构建典型的白炽灯光源，并在较宽的光谱范围内对灯光进行色彩调整。色彩调谐电致发光的固有工作原理可以归因于朝向ZnO / ZnO：Ga界面的II型能带排列。因此，单个的ZnO / ZnO：Ga MWs可以赋予最古老和最简单的白炽灯源以新的含义。可以预见，ZnO MC包覆的ZnO：Ga MW径向结构的照明功能对于基于ZnO的光电器件（如微型二极管和激光器，波导，高增益光电探测器，等等。
更新日期：2019-11-11
中文翻译：
用于随机微激光器和白炽灯型光源的便捷合成ZnO微晶†
在这种情况下，成功地合成了具有良好切面光滑表面的结晶良好的ZnO微晶（MCs）。由于出色的光学响应和精心设计的微晶，合成后的低维晶体被用于构建紫外微尺寸的随机激光器。另外，使用两步气相传输合成方法，将预见到的作为关键元素的微/纳米晶体沉积在预先合成的Ga掺杂的ZnO微线（ZnO / ZnO：Ga MWs）上。通过调整合成后的条件，可以利用ZnO MC的加入来调整预合成MW的基本光学和电子传输性质。尤其是，选择了一个ZnO / ZnO：Ga MW来构建典型的白炽灯光源，并在较宽的光谱范围内对灯光进行色彩调整。色彩调谐电致发光的固有工作原理可以归因于朝向ZnO / ZnO：Ga界面的II型能带排列。因此，单个的ZnO / ZnO：Ga MWs可以赋予最古老和最简单的白炽灯源以新的含义。可以预见，ZnO MC包覆的ZnO：Ga MW径向结构的照明功能对于基于ZnO的光电器件（如微型二极管和激光器，波导，高增益光电探测器，等等。
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