Large tunable luminescence by Mn(ii) aggregates in Mn-doped ZnS nanobelts

Abstract

Tunable emission from the visible to infrared region in II–VI semiconductor nanostructures makes them ideal candidates for the development of optoelectronic devices.

Synthesis of Mn2+-doped ZnS by a mechanically induced self-sustaining reaction

“…Note that most reports in the literature refer to doped samples with the zinc blende structure. Papers related to the wurtzite structure are less frequent, and the stabilization of this high-temperature phase is mainly correlated with the formation of special elongated morphologies[8,15,16,[39][40][41]. However, in our case, the wurtzite phase was obtained due to the high temperatures reached during the MSR process.…”

“…Mn-doped ZnS is frequently synthesized by low temperature solution-based methods (precipitation, microemulsion, sol-gel, hydrothermal, reverse micelle…) [11][12][13][14] or evaporation processes (thermal evaporation, chemical vapor deposition…) [15,16]. These methods have some disadvantageous, such as high chemical complexity, the use of expensive chemical reagents, the need for prolonged reaction time and/or high pressure conditions.…”

Characterisation of spectroscopic and magneto-optical faraday rotation in Mn2+- doped CdS quantum dots in a silicate glass

“…6a for CdS Q-dots. The peak at 587nm corresponds to a characteristic emission of Mn 2+ ions (E Mn ~2.12 eV) between the 4 T 1 and 6 A 1 levels in the Mn 2+ doped CdS NPs [29,30]. Furthermore, it is evident that the emission peak in the glass samples heat treated at 575 o C and 600 o C are shifted to much longer wavelengths in Mn 2+ -doped CdS in Fig.…”

Synthesis of alloyed Zn1–xMnxS nanowires with completely controlled compositions and tunable bandgaps

“…5 Many factors could affect their optical or magnetic properties, including the temperature, 4,6 dopant location 7,8 and composition/dopant concentration. 4,[9][10][11][12][13][14][15] As is well known, the composition is a key factor affecting the bandgaps of semiconductor nanomaterials, [16][17][18][19][20][21][22][23] e.g. the ternary Zn x Cd 1Àx S [16][17][18] , CdS x Se 1Àx 19 and ZnSe x Te 1Àx 20 nanowires, all showed the tunable bandgaps versus the composition.…”