The synthesis of metal selenides in thin ﬁlm form has been
AB - Based on an efficient and bottom-up synthesis technique, Bismuth Selenide (Bi2Se3) nanoplatelets with uniform morphology and average thickness down to 3–7 nm had been fabricated. Its nonlinear absorption property under high power excitation had been well characterized by our Z-scan measurement system at different illumination wavelengths, and we found that the as-fabricated bi-layer Bi2Se3 nanoplatelets show unique nonlinear optical responses, that is, with a saturable optical intensity of 32 GW/cm2 (resp. 3.7 MW/cm2) and a modulation depth of 88% (resp. 36%) at 800 nm (resp. 1565 nm). By implementing its saturable absorption property, we designed an optical saturable absorber device based on bilayer Bi2Se3 nanoplatelets through deposited them onto the end-facet of optical fiber. The as-fabricated optical saturable absorber device allows for the generation of mode-locking pulses at 1571 nm with pulse duration of 579 fs and a repetition rate of 12.54 MHz at a pump power of 160 mW. The method on fabricating ultrathin Bi2Se3 nanoplatelets may pave a new way to massive production of large-area topological insulator thin films that can be used in two-dimensional layered materials related photonics device.
Observation of inverse spin Hall effect in bismuth selenide: ..
Attempt to make more dispersed, uniform nanoparticles for more control
Want to synthesize Bismuth Selenide in the most efficient way possible
Yuan, Z.; Wu, Z.; Bai, S.; Cui, W.; Liu, J.; Song, T.; Sun, B. Layered bismuth selenide utilized as hole transporting layer for highly stable organic photovoltaics. Org. Electron. 2015, 26 327-333. Tang, H.; Wang, X.; Xiong, Y.; Zhao, Y.; Zhang, Y.; Zhang, Y.; Yang, J.; Xu, D. Thermoelectric characterization of individual bismuth selenide topological insulator nanoribbons. Nanoscale 2015, 7 (15), 6683-6690.
Zinc oxide is an inorganic compound with the formula Zn O
The photochemical reaction between triphenylbismuth and di--butyl diselenide under aqueous micellar conditions yields 5-nm bismuth selenide nanocrystals of the 1:1 BiSe stoichiometry. This is the first example of the bismuth-rich nevskite phase being prepared in a well-dispersed colloidal nanocrystal form.
Selenium is a chemical element with symbol Se and atomic number 34
The photolytic decomposition of triphenylbismuth and di--butyl diselenide under aqueous micellar conditions yields 5-nm bismuth selenide nanocrystals of the BiSe stoichiometry. This is the first example of the bismuth-rich BiSe phase being prepared in a well-dispersed colloidal nanocrystal form.