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- W4220797746 endingPage "2122" @default.
- W4220797746 startingPage "2107" @default.
- W4220797746 abstract "Perovskites constitute an exceptionally tunable materials family with diverse applications in electronics, optoelectronics, energy, and quantum technologies. Out of the thousands of known perovskites, the majority of compounds are oxides, halides, and chalcogenides. In contrast, only two nitride perovskites are currently known. In this work we perform a thorough ab initio computational screening of possible nitride perovskites, and we identify two new compounds, CeNbN3 and CeTaN3, with band gaps in the near-infrared to visible range, depending on temperature. In their room-temperature orthorhombic phase, we predict that both compounds exhibit direct or quasidirect band gaps in the range 1.1–2.0 eV, with the Pnma phases matching the Shockley–Queisser limit for photovoltaic energy conversion efficiency. These compounds are also predicted to be strong light absorbers, with absorption coefficients surpassing those of high-performance semiconductors such as GaAs and CH3NH3PbI3. The present findings reveal a potentially new class of nitride semiconductors with promise for electronics, optoelectronics, and light harvesting and for integration with existing nitride-based lighting technology." @default.
- W4220797746 created "2022-04-03" @default.
- W4220797746 creator A5033627957 @default.
- W4220797746 creator A5033876688 @default.
- W4220797746 creator A5062146876 @default.
- W4220797746 date "2022-02-23" @default.
- W4220797746 modified "2023-09-25" @default.
- W4220797746 title "CeTaN<sub>3</sub> and CeNbN<sub>3</sub>: Prospective Nitride Perovskites with Optimal Photovoltaic Band Gaps" @default.
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