Crystal shape and size of CdTe colloidal quantum dots controlled by silver doping for enhanced quantum dots sensitized solar cells performance

Advancements in semiconductor quantum dots: expanding frontiers in optoelectronics, analytical sensing, biomedicine, and catalysis

“…Since the first hybrid CQD 121 and entirely inorganic CQD 122 solar cells were fabricated, the efficiencies of these devices have enhanced drastically and consistently attracted significant attention, with constantly evolving designs. To enhance the efficiencies, optimization of the cathode material, with Al, 123 Ag, 124,125 and Mg 126 etc. tested as low-work function metals, while organic 127 and inorganic 128 intermediate layers were examined.…”

Blue-Emissive ZnSeTe Quantum Dots and Their Electroluminescent Devices

“…43 Furthermore, tailoring the desired attributes of ZnSeTe QDs involves not only fine-tuning their heterostructure but also shaping them. 44 Unlike their bulk counterparts, nanomaterials possess a substantial amount of free energy due to their geometric features, rendering shape optimization challenging. While most ZnSeTe QDs adopt a spherical shape (Figure 2c), the use of ZnCl 2 enabled the synthesis of cube-shaped ZnSeTe QDs, directing shell growth toward specific (100) or ( 111) facets (Figure 2d).…”

“…Utilizing this structure, Bae et al demonstrated a remarkable PL QY of >90% across a broad emission wavelength spectrum, ranging from 450 to 600 nm, achieved by modulating the ZnSe 1– x Te x compositions and dimensions . Furthermore, tailoring the desired attributes of ZnSeTe QDs involves not only fine-tuning their heterostructure but also shaping them . Unlike their bulk counterparts, nanomaterials possess a substantial amount of free energy due to their geometric features, rendering shape optimization challenging.…”

MoS2 Quantum Dots-based Low-cost and Disposable Electrochemical Sensor for the Detection of Lead (II) Ions

“…Interaction of the heavy metal ions with graphene QDs was studied by density functional theory and the selectivity of the sensor rises from efficient electrons trapping in the bandgap states created by the corresponding metal ion. 24 Nanostructures such as QDs are favoured as an efficient material over their bulk counterparts, 25,26 and MSQDs are well known for their sulfur-terminated edges acting as catalytically active centers. 22,27 Present work focuses on fabrication of an electrochemical sensor for the detection of Pb 2+ -ion by drop casting MSQDs on a wellpolished and glossy finished surface of a PGE.…”