In this report, we synthesize greenish-blue- and yellow-emitting aluminum oxide nanostructures with tailored absorption and PL properties by adding 1,2,3,4-tetrahydrocarbazol-4-one. The luminescent nanostructures are synthesized via a single-step high-temperature thermal-decomposition reaction using aluminum acetate precursors in a 1-octadecene solution. We observed that the addition of 1,2,3,4-tetrahydrocarbazol-4-one to the reaction mixture significantly affects the PL properties of the aluminum hydroxide nanostructure. Characteristic PL peaks are observed at 406 and 483 nm, which are attributed to the emission from O- and C-related defect centers, respectively. When the reaction is conducted with 1,2,3,4-tetrahydrocarbazol-4-one, a red-shift of the emission spectra of aluminum hydroxide is observed, with greenish-blue PL under ultraviolet excitation. Additionally, when the reaction temperature increases, the PL is further red-shifted, resulting in a yellow-emitting aluminum hydroxide nanostructure. Structural characterization is conducted to investigate the optical properties of the aluminum hydroxide nanostructures synthesized under different reaction conditions. Our method allows the PL properties of aluminum hydroxide nanostructures to be tailored.

在本报告中，我们通过添加1,2,3,4-tetrahydrocarbazol-4-one来合成具有发射和吸收特性的绿色蓝色和黄色发光氧化铝纳米结构。发光纳米结构通过1十八碳烯溶液中使用乙酸铝前体的单步高温热分解反应。我们观察到向反应混合物中添加1,2,3,4-四氢咔唑-4-酮显着影响氢氧化铝纳米结构的PL性能。在406和483 nm处观察到特征PL峰，分别归因于O和C相关缺陷中心的发射。当用1,2,3,4-四氢咔唑-4-酮进行反应时，观察到氢氧化铝的发射光谱发生红移，在紫外线激发下呈蓝绿色PL。另外，当反应温度升高时，PL进一步红移，从而产生发黄光的氢氧化铝纳米结构。进行结构表征以研究在不同反应条件下合成的氢氧化铝纳米结构的光学性质。我们的方法允许定制氢氧化铝纳米结构的PL特性。