Dependence of energy transfer and photoluminescence on tailored defects in Eu-doped ZnO nanosheets-based microflowers

Tunable deep-level emission in ZnO nanoparticles via yttrium doping

“…So we fit the spectra with Gaussian function and the deconvolutions show the presence of two different O1s peaks in the Zn 0.95 Y 0.05 O nanoparticles. The peak centered at 531.0 eV is associated to the O 2− ion in the wurtzite structure surrounded by the Zn atoms with their full complement of nearest-neighbour O 2− ions [36][37][38][39][40][41][42][43][44], whereas the peak centered at 532.7 eV can be ascribed to the specific chemisorbed oxygen, such as -CO 3 , adsorbed O 2 , or adsorbed H 2 O [36][37][38][39][40][41][42][43][44]. Fig.…”

Effect of polar and non-polar surfaces of ZnO nanostructures on photocatalytic properties

“…The emission centered at 380 nm (3.26 eV) is in good agreement with the typically reported free exciton peak position [35,36], and could be explained by the near-band-edge emission (3.37 eV). And the defect emission in the visible-light region is attributed to ZnO surface detects, in which oxygen vacancies are the most suggested defects [6,[37][38][39][40]. Wu et al investigated stoichiometric and oxygen-deficient ZnO film.…”

Effect of compaction pressure of green body and heating current on photoluminescence property of ZnO crystal grown by electric current heating method

“…In addition, the interest in ZnO is fueled and fanned by its prospects in electronics and photonics applications, viz. transparent electrodes in solar cells, flat display devices and novel solid-state ultraviolet (UV) lasers owing to its direct wide band gap [1][2][3][4][5][6][7].…”

“…In addition, the interest in ZnO is fueled and fanned by its prospects in electronics and photonics applications, viz. transparent electrodes in solar cells, flat display devices and novel solid-state ultraviolet (UV) lasers owing to its direct wide band gap [1][2][3][4][5][6][7].Many works have been done on the fabrication of ZnO micro/nanostructures with high aspect ratios using metalorganic chemical vapor deposition [8], thermal evaporation and thermal decomposition [9]. But these techniques appear to be involved process with many complex steps, require sophisticated equipment and rigorous experimental conditions.…”