Bserved in Figure 4b. The location could be a hole-doped p-type region embedded in a n-type bulk specimen. This neighborhood inhomogeneity of Sr could possibly be on account of an inhomogeneity within the beginning materials. 3.three. SXES Mapping of p-Type SrB6 Figure 5a shows a BSE image of a p-type SrB6 bulk specimen ready with an Srdeficient composition of Sr:B = 1:12. As the contrast of BSI is determined by the atomic quantity, the Azvudine In stock complicated white and black contrast within the BSI image suggests an inhomogeneous distribution of Sr. Figure 5b shows an intensity map of Sr M -emission Lacto-N-biose I site divided by an averaged value. The spectra (raw information) of locations A and B are shown in Figure 5c. The spectrum B shows a largely decreased Sr-M intensity than that of A.Figure 5. (a) BSI image, (b) spectra of regions A and B in (c), (c) Sr-M -emission intensity map, (d) chemical shift map of B K-emission, (e) B K-emission spectra of places of A and B in (d).Figure 5d is actually a chemical shift map ready employing the identical manner for that in Figure 4d. It can be clearly observed that the B K-emission spectra of Sr-deficient regions, dark places in Figure 5b, show a chemical shift towards the larger energy side, as observed in bright color in Figure 5d. The enlarged B K-emission spectra of regions A and B are shown in Figure 5e. The gray band of 18788 eV will be the power window utilized to create Figure 5d. The spectrum of your region B having a huge Sr-deficient area shows not merely a shift from the B K-emission peak position for the larger energy side, but also an extra shoulder structure, indicated by vertical lines. This implies that the location could have a crystal structure comprising largely deformed SrB6 , or a structure various from that of SrB6 . Such shoulder structures of B K-emission spectra have been also observed in Na-doped [20] and Ca-deficient [21] p-type CaB6 bulk specimens. A distinct crystal structure of boron can show a distinctive peak energy in B K-emission as currently shown in Figure 2b. Thus, the region B could possibly be a p-type region, however the volume of the peak shift can’t be explained by the hole-doping only. Alternatively, the intensity profile of spectrum A in Figure 5e is related to these in Figure 4e. The Sr-M intensity of theAppl. Sci. 2021, 11,7 ofarea A in Figure 5c is smaller than that on the spectrum of area A in Figure 4c. In addition, the peak position in the B K-spectrum shifted slightly for the bigger power side about 0.1 eV than that of A in Figure 4e. Hence, area A may be a hole-doped p-type region having the SrB6 structure. As a result, the location A should be representative of p-type SrB6 aimed for inside the specimen preparation. four. Discussion The present experimental results of SXES mappings showed that the present n-type SrB6 bulk specimen was nearly uniform except for any regional fluctuation in Sr content material. However, p-type bulk specimen was apparently not uniform. The specimen was composed of two p-type regions. One particular was the region containing a modest volume of Sr -deficiency and possessing the SrB6 form crystal structure, which was the material aimed for in specimen preparation. The other was the area having a large volume of Sr deficiency, which had a largely deformed SrB6 structure or maybe a differently structured boron material. This may be the result of an Sr-deficient composition of starting material employed for the molten-salt process. From the experimental outcomes, the fine SrB6 particles prepared by molten-salt strategy might have had a big dispersion of Sr content. As a result, any approach to separate the two forms of materi.