Materials Chemistry and Physics ( IF 4.3 ) Pub Date : 2023-06-09 , DOI: 10.1016/j.matchemphys.2023.127993 Aadil Ahmad Bhat , Insaaf Assadullah , Aaliyah Farooq , Khurshaid Ahmad Malik , Javied Hamid Malik , Radha Tomar , Ishtihadah Islam , Atif Mossad Ali , Shakeel Ahmad Khandy
Present manuscript reports the hydrothermal synthesis of pristine (Zn2SnO4) and copper doped Zn2SnO4 spinals under subcritical conditions. XRD pattern identifies the cubic phase of pristine and its doped nanostructures. Tauc plot and density functional theory (DFT) studies claim the lowering of band gap values up to 2.5 eV upon the insertion of transition metal copper (Cu) into the host lattice. Blue shift occurs due to Moss−Burstein effect upon excess concentration of Copper is realized. Both pristine and Cu doped Zn2SnO4 present light green and dark blue colour upon the irradiation of different UV (252 nm and 365 nm) lamps, respectively. Besides this, Zn2SnO4 shows effectiveness in hosting Cu ions, thus could act as a prospective green/blue emitter.
中文翻译:
用于光学和光致发光应用的 Zn2SnO4 纳米结构的带隙变化
目前的手稿报告了在亚临界条件下原始 (Zn 2 SnO 4 ) 和铜掺杂 Zn 2 SnO 4脊柱的水热合成。XRD 图确定了原始的立方相及其掺杂的纳米结构。Tauc 图和密度泛函理论 (DFT) 研究声称,在将过渡金属铜 (Cu) 插入主晶格后,带隙值降低高达 2.5 eV。由于 Moss-Burstein 效应在铜浓度过高时发生蓝移。在不同紫外灯(252 nm 和365 nm)的照射下,原始和Cu 掺杂的Zn 2 SnO 4分别呈现浅绿色和深蓝色。除此之外,Zn 2SnO 4显示出承载 Cu 离子的有效性,因此可以充当预期的绿色/蓝色发射体。