Transmission electron microscopy (TEM) is a useful technique to study this type of materials on a small scale down to near atomic resolution in order to try to relate the structure of the material to other functional properties.

2016年7月27日 · Four solar cells were prepared with 50, 100, 200 and 400 nm-thick CdSe layers to reveal the formation, growth, composition, structure and photoactivity of the CdTe x Se 1−x alloy with respect to...

2024年4月3日 · In this work, we present a new approach for monitoring the formation of QDs in aqueous solution up to 90 °C, through in situ luminescence analysis, using CdTe as a model system. This technique...

The CdTe CdS system offers one of the most promising photovoltaic devices for terrestrial applica-tions, due to the near-optimum bandgap and high absorption coefficient of CdTe. Polycrystalline, thin-film CdTe CdS solar cells have demonstrated an efficiency of 15.8% 1 . However, as-deposited CdTe films exhibit very poor electrical ...

2020年4月2日 · Cadmium telluride plus cadmium tellurite (CdTe + CdTeO 3) nanocomposite films were grown by radio frequency magnetron sputtering at room temperature. The CdTe + CdTeO 3 samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, UV–Vis absorption, and room temperature photoluminescence (RTPL).

TEM images of colloidal CdTe (left) and CdSe QDs (right). High-resolution TEM image shows clearly the atomic arrangement of CdTe nanocrystals. [...] This paper highlights the results of the...

2016年4月1日 · TEM analysis of the CSS absorbers suggests the formation of core–shell nanostructures comprised of Zn and Cu x Te at GBs and defects in the CdTe near the back contact. To fully assess this possibility atom probe tomography was used to provide three-dimensional characterization of the back contact region using devices made at CSM by VTD.

2020年6月15日 · Here, we use xenon ion milling and cryogenic sample cooling to boost signal from the TEM foil, enabling high resolution CL imaging of a bilayer CdSeTe/CdTe solar cell for the first time. The results show that selenium has a passivation effect on grain boundaries in alloyed CdSeTe material, helping to explain the superior performance of CdSeTe ...

2002年7月12日 · Nanoparticles of CdTe were found to spontaneously reorganize into crystalline nanowires upon controlled removal of the protective shell of organic stabilizer. The intermediate step in the nanowire formation was found to be pearl-necklace aggregates.

研究了 CdSe、CdTe和Co3O4不同晶面暴露的原因,提出了可能的形成机理。 研究了 CdSe和CdTe纳米片的光催化降解有机物性能,并与暴露其他晶面纳米晶的光催化性能进行比较。