Tuneable fluorescent, recombination pathways of biogenic Au SiO2 nanospheres from rice husk: An optical study

Construction of a Bismuthene/CsPbBr3 Quantum Dot S-Scheme Heterojunction and Enhanced Photocatalytic CO2 Reduction

“…The TRPL spectra of CsPbBr 3 QDs and Bismuthene/CsPbBr 3 QDs are recorded at emission wavelengths of 520 nm (Figure b), corresponding to the maximum fluorescence emissions. The excitations are done at 380 nm. , Furthermore, their PL decay times are fitted with the triexponential equation according to the TRPL spectra where short lifetimes (τ 1 and τ 2 ) represent the radiative recombination of the photoinduced carriers, and a long lifetime (τ 3 ) represents nonradiative recombination of the photoinduced carriers. A 1 , A 2 , and A 3 are the amplitudes and τ av represents the synergetic charge-recombination effect. ,, As shown in Figure d and Table S3, τ 1 and τ av values of CsPbBr 3 QDs are 0.61 and 8.18 ns under the excitation wavelength of 380 nm, respectively, while τ 1 and τ av values of Bismuthene/CsPbBr 3 QDs are 0.73 and 11.27 ns, respectively.…”

“…The excitations are done at 380 nm. 58,59 Furthermore, their PL decay times are fitted with the triexponential equation according to the TRPL spectra…”