Nd4 Se4 O4

Nd₄Se₄O₄ is a rare-earth oxyselenide compound combining neodymium, selenium, and oxygen—a ceramic semiconductor material in the broader family of rare-earth chalcogenides. This is primarily a research and exploratory material rather than an established commercial compound; it represents experimental work in rare-earth semiconductor chemistry where such oxyselenides are investigated for potential electronic, photonic, or thermoelectric properties distinct from more common oxides or selenides.