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  • Researchers in Prof. Stacey Bent's laboratory have developed a convenient, safe technique for generating hydrogen sulfide or hydrogen selenide gas on an as-needed basis. Using this process, which involves decomposition of a solid precursor, could reduce or eliminate the need to stock highly reactive, toxic, flammable hydrogen sulfide gas. The hydrogen sulfide or hydrogen selenide produced with this method can be used for deposition (i.e. chemical vapor deposition, atomic layer deposition, reactive sputtering) and sulfidization systems. It is particularly well-suited for research-scale applications where the costs and risks associated with hydrogen sulfide gas usage and storage makes its use difficult.