Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Heavy-metal-free"”.
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Heavy-metal-free colloidal nanocrystal heterostructures – synthetic chemistry and growth mechanisms
… the research has been based on compositions with heavy metals (e.g., cadmium or lead) posing toxicity concerns to the consumers. Therefore, a better understanding of the synthetic chemistry and the growth mechanisms for heavy-metal-free nanocrystal heterostructures is critical before their …
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Light-Matter Interactions in High-Efficiency Photovoltaics, Light-Emitting Devices, and Strongly Coupled Microcavities
… material candidate. Recent efforts to develop heavy metal-free QD-LEDs have led to high external quantum efficiencies in InP- and ZnSebased QDs rivaling the performance of the colloidal archetype of Cd-based QD-LEDs. Within energy manipulation, the emergence of photonics from electronics …
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Development of colloidal quantum dot and lead halide perovskite light emitting devices
… QD's toxicity issue by developing a synthesis of heavy-metal-free ZnSe/ZnS core-shell QDs with narrow spectral linewidth and high PL quantum yield. By employing these QDs as emitters, we demonstrate QD-LEDs with efficient and saturated blue electroluminescence (EL). Finally, we present a new way …
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Synthesis, functionalisation and characterisation of germanium nanocrystals & their applications
… genuine concerns have been raised regarding the heavy metal content of these materials, which is toxic even at relatively low concentrations and may limit their wide scale use. These concerns have driven the development of heavy metal free alternatives. In recent years, germanium nanocrystals (Ge …
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Continuous flow synthesis of colloidal semiconductor nanocrystals: towards autonomous experimentation for accelerated material discovery
… synthesis of semiconductor NCs containing toxic heavy-metal elements such as cadmium and lead. The inherent toxicity of heavy-metal-based colloidal NCs and the associated regulatory constraints have largely impeded their widespread implementation. Therefore, the discovery of efficient synthesis …