Irm the purity with the film, we performed Raman measurements, as shown in Figure 6b.

Irm the purity with the film, we performed Raman measurements, as shown in Figure 6b. The spectra with the iron pyrite film are consistent with that in the bought iron pyrite powder. 3 Raman peaks at about 339 cm-1 , 374 cm-1 , and 426 cm-1 originate from iron pyrite and correspond for the S2 libration, in-phase stretch, and coupled libration/stretch vibrational modes, respectively [15,257], which demonstrates that it really is a pure iron pyrite film. The outcomes clearly manifest the advantage of sulfurization sintering for the preparation of FeS2 thin film as compared using the report devoid of sulfurization within the ECD approach [17,23]. Nanomaterials 2021, 11, x FOR PEER Review 7 of 12 Nanomaterials 2021, 11, x FOR PEER Consequently, we QL-IX-55 MedChemExpress believe sulfurization is really a essential process in constructing crystallized and7pure Review of 12 iron pyrite film within the ECD process.Figure five. Variation of the thickness of FeS2 film as a function of electrochemical deposition time. Figure 5. Variation from the thickness of FeS22film as aafunction of electrochemical deposition time. Figure 5. Variation on the thickness of FeS film as function of electrochemical deposition time.Figure six. (a) XRD (film thickness is about 520 nm) and (b) Raman spectra of iron pyrite film. The Raman spectrum of pure Figure six. (a) XRD(film thickness is about 520 nm) and (b) Raman spectra of iron pyrite film. The Raman spectrum of pure Figure 6. (film thickness is about 520 nm) and (b) Raman spectra of iron pyrite film. The Raman spectrum of pure iron pyrite powder is also given. iron pyrite powder can also be given. iron pyrite powder is also offered.The composition of iron pyrite film was characterized by EDX measurements, along with the composition of iron pyrite film was characterized by EDX measurements, and the outcomes are shown in Figure 7 and Table 2. The atomic ratio of sulfur and iron inside the the results are shown in Figure 7 and Table two. The atomic ratio of sulfur and iron inside the film is 1.91:1, which indicates there are actually some sulfur vacancies in the film. The Loxapine-d8 custom synthesis absorption film is 1.91:1, which suggests there are some sulfur vacancies within the film. The absorption measurement of iron pyrite film was carried out to determine the band gap from the film. As measurement of iron pyrite film was carried out to determine the band gap on the film. As shown in Figure 8a, the film shows powerful absorption inside the range of 40050 nm, suggestshown in Figure 8a, the film shows sturdy absorption within the selection of 40050 nm, suggest-Nanomaterials 2021, 11,7 ofThe composition of iron pyrite film was characterized by EDX measurements, along with the results are shown in Figure 7 and Table 2. The atomic ratio of sulfur and iron inside the film is 1.91:1, which implies you will discover some sulfur vacancies in the film. The absorption measurement of iron pyrite film was carried out to determine the band gap on the film. As shown in Figure 8a, the film shows robust absorption in the array of 40050 nm, Nanomaterials 2021, 11, x FOR PEER Critique of suggesting a prospective absorbing layer for solar cell inside the visible region. The band8gap12 1/2 v.s. h relation [13]. on the film was calculated by a Tauc plot in accordance with the (h) A sharp absorption edge at about 950 nm was observed, corresponding to a band gap of which as shown in Figure 8b. There’s Heras, C. et al. [30]. The small band gap nm, EDX,0.89 eV, is similar towards the guess of de las also a compact absorption edge around 1350 is not corresponding photovoltaic application of iron pyrite, and undoubte.