Near-Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications
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arXiv
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| Format: | Preprint |
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2025
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| author | Liu, Ying Di Stasio, Francesco Bi, Chenghao Zhang, Jibin Xia, Zhiguo Shi, Zhifeng Manna, Liberato |
| author_facet | Liu, Ying Di Stasio, Francesco Bi, Chenghao Zhang, Jibin Xia, Zhiguo Shi, Zhifeng Manna, Liberato |
| contents | Near-Infrared (NIR) light emitting metal halides are emerging as a new generation of optical materials owing to their appealing features, which include low-cost synthesis, solution processability and adjustable optical properties. NIR emitting perovskite-based light-emitting diodes (LEDs) have reached an external quantum efficiency (EQE) over 20% and a device stability of over 10,000 h. Such results have sparked an interest in exploring new NIR metal halide emitters. In this review, we summarize several different types of NIR-emitting metal halides, including lead/tin bromide/iodide perovskites, lanthanide ions doped/based metal halides, double perovskites, low dimensional hybrid and Bi3+/Sb3+/Cr3+ doped metal halides, and assess their recent advancements. The characteristics and mechanisms of narrow-band or broadband NIR luminescence in all these materials are discussed in detail. We also highlight the various applications of NIR-emitting metal halides and provide an outlook for the field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_06780 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Near-Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications Liu, Ying Di Stasio, Francesco Bi, Chenghao Zhang, Jibin Xia, Zhiguo Shi, Zhifeng Manna, Liberato Materials Science Near-Infrared (NIR) light emitting metal halides are emerging as a new generation of optical materials owing to their appealing features, which include low-cost synthesis, solution processability and adjustable optical properties. NIR emitting perovskite-based light-emitting diodes (LEDs) have reached an external quantum efficiency (EQE) over 20% and a device stability of over 10,000 h. Such results have sparked an interest in exploring new NIR metal halide emitters. In this review, we summarize several different types of NIR-emitting metal halides, including lead/tin bromide/iodide perovskites, lanthanide ions doped/based metal halides, double perovskites, low dimensional hybrid and Bi3+/Sb3+/Cr3+ doped metal halides, and assess their recent advancements. The characteristics and mechanisms of narrow-band or broadband NIR luminescence in all these materials are discussed in detail. We also highlight the various applications of NIR-emitting metal halides and provide an outlook for the field. |
| title | Near-Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications |
| topic | Materials Science |
| url | https://arxiv.org/abs/2512.06780 |