Structure and physiochemical properties based interaction patterns of organophosphorous pesticides with quantum dots: Experimental and theoretical studies

Computational investigations into the structural and electronic properties of CdnTen (n = 1–17) quantum dots

“…(iv) The most stable species, according to their binding energy values, eV per unit, were calculated to be the Cd 12 The binding energies were found to increase signicantly up to n ¼ 9 and then varied within a 0.19 eV range (see Table 1).…”

“…1 These semiconductor nanomaterials are becoming increasingly important owing to their potential applications in electronic and optoelectronic devices such as solar cells, electro-optical modulators, photodetectors, light emitting diodes and sensors. [1][2][3][4][5][6][7][8][9][10][11][12][13] Size-tunability of the electronic and optical properties of semiconductor quantum dots and nanoclusters is due to the quantum size effect, which causes variations in the electronic excitations as the particle boundaries are changed. 14 Recently, CdSe and CdTe quantum dots have been used in energy harvesting devices, for example, quantum dotsensitized solar cells.…”

“…The relative energy (E e , the energy of the putative global minimum is referenced to zero), binding energy (E b ) in eV per CdTe unit, HOMO and LUMO energies, dipole moments (m) and polarizability per CdTe unit hai for the lowest energy optimized structures of Cd n Te n (n ¼ 1-17), the hollow cage and the endohedral (core-shell) cage structures (n ¼[10][11][12][13][14][15][16][17] …”

Optical Sensors Based on II-VI Quantum Dots

“…Despite the positive impact on economic aspects, excessive use of pesticides can lead to the production of harmful chemical intermediates in vegetables, fruits and other agricultural products, which is a serious threat to food safety and human health. In order to ensure constant control of the concentration of these substances in agricultural products, it is necessary to find quick methods to confirm the presence and define their concentration [ 97 , 98 , 99 , 100 , 101 , 102 ]. Table 7 presents an exemplary fluorescent strategies for pesticides determination with using of QDs.…”

“…Kanagasubbulakshmi et al [ 99 ] show the thioglycolic acid (TGA) capped CdTe QDs were highly dispersed and uniform in nature. The TGA surface modification of CdTe did not lead to the agglomeration of QDs.…”