The effects of Zn/Cd ratio and GQDs doping on the photoelectric performance of ZnxCd1-xSe

Doped Graphene Quantum Dots Modified Zn0.9Cd0.1Se for Improved Photoelectric Properties

“…2) Preparation of N-GQDs: [19] urea (0.18 g) and citric acid (0.21 g) were dispersed in distilled water (5.0 mL), and the solution was autoclaved at 160 °C for 4 h. N-GQDs were obtained by centrifuging and redissolving into water. 3) Preparation of P-GQDs: [20] 1 g pyrene was dispersed in 80 mL HNO 3 to stir and reflux at 80 °C for 12 h. The solution was treated by a 0.22 μm filter to obtain 1,3,6-nitropyrene. 40 mg 1,3,6-trinitropyrene and 600 mg Na 2 HPO 4 •12H 2 O were dispersed in NaOH solution (20 mL, 400 mm) under ultrasonic treatment for 1 h. The solution was autoclaved at 180 °C for 6 h, and the obtained mixture was treated by a 0.22 μm filter.…”

“…In our previous study, Zn x Cd 1− x Se reached the higher photocurrent and lower interface impedance when the Zn/Cd atomic ratio was 0.9/0.1. [ 3 ] Zn 0.9 Cd 0.1 Se nanocomposites had good and stable photoelectric properties, but their further wide application was still limited to some extent by the relatively fast electron–hole recombination rate and low transfer efficiency of photogenerated electrons, which could be improved by recombination with conductive materials.…”

Investigations on the structural and optoelectronic characteristics of cadmium-substituted zinc selenide semiconductors

“…Recently, Liu et al (2022) explored CdZnSe quantum dots as the composition of visible displays in blue, red, and green light-emitting diodes. Chen et al (2022) investigated the impact of the Zn/Cd ratio and studied the photoelectric properties of ternary CdZnSe alloys at Cd contents of 0.1, 0.5, and 0.9. In addition to the experiments, low-cost and effective first-principle approaches have been potentially used to specify a number of physical parameters at ambient pressure in relation to the material's electrical, optical, thermodynamic, and structural characteristics (Jafarova, 2023;Korozlu et al, 2011;Aarifeen and Afaq, 2017;ul Aarifeen and Afaq, 2019;Ameri et al, 2012;Iqbal et al, 2022b).…”