Influence of annealing temperature on structural, morphological and optical properties of CTAB assisted cadmium sulphide (CdS) quantum dots: promising candidate for quantum dot sensitized solar cell (QDSSC) applications

Profound influence of surface trap states on the utilization of charge carriers in CdS photoanodes

“…It is a cationic surfactant consisting of a hydrophobic tail and a positively charged ammonium (NH 4 ) head group with bromide anion (Br À ). 19 Although it shows promising results for the synthesis of photocatalysts and is extensively studied in the literature as a simple option to manipulate photocatalytic behavior, its potential as an overlayer is not promoted enough. Li et al 20 used CTAB on Fe 2 O 3 photoanode by a hydrothermal deposition method followed by a post-annealing treatment.…”

Advancement in Photothermal Effect of Carbon Nanotubes by Grafting of Poly(amidoamine) and Deposition of CdS Nanocrystallites

“…24 On account of its high photoabsorption coefficient, CdS holds great potential in optoelectronics, photocatalysis, solar energy conversion, and X-ray detectors. 25–27 Besides, CdS has found application in the biomedical field ranging from antibacterial to molecular histopathology, advanced disease diagnostics, and biological imaging. 28,29 Nevertheless, its low absorption to NIR radiation compared to UV and visible radiation has restricted the use of CdS in therapies.…”

“…Cadmium sulfide (CdS) is an important II–VI group chalcogenide semiconductor with direct and narrow band gap of 2.4 eV, and it persists with superior photoconductivity, electronic band gap tuning capability, and high electron affinity. − Moreover, CdS has large exciton binding energy of ∼28 meV; therefore, high efficient excitonic processes are expected in CdS, and these processes could directly influence and improve the optical properties of CdS . On account of its high photoabsorption coefficient, CdS holds great potential in optoelectronics, photocatalysis, solar energy conversion, and X-ray detectors. − Besides, CdS has found application in the biomedical field ranging from antibacterial to molecular histopathology, advanced disease diagnostics, and biological imaging. , Nevertheless, its low absorption to NIR radiation compared to UV and visible radiation has restricted the use of CdS in therapies. Hence, a suitable functionalization is critical to make CdS NIR active, and it can be attained through conjugation of CdS with outstanding materials, viz., CNTs and PAMAM.…”