One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system
Low-dimensional lead-free luminescent halides have emerged as highly promising phosphors for white-light emission. Recently, we reported a broadband blue-emitting copper(I) iodide-based material, Cs3Cu2I5, with a high photoluminescence quantum yield (PLQY) (∼90%) and a zero-dimensional nature, provi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2019-11-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/1.5127300 |
| _version_ | 1818040123000881152 |
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| author | Taehwan Jun Taketo Handa Kihyung Sim Soshi Iimura Masato Sasase Junghwan Kim Yoshihiko Kanemitsu Hideo Hosono |
| author_facet | Taehwan Jun Taketo Handa Kihyung Sim Soshi Iimura Masato Sasase Junghwan Kim Yoshihiko Kanemitsu Hideo Hosono |
| author_sort | Taehwan Jun |
| collection | DOAJ |
| description | Low-dimensional lead-free luminescent halides have emerged as highly promising phosphors for white-light emission. Recently, we reported a broadband blue-emitting copper(I) iodide-based material, Cs3Cu2I5, with a high photoluminescence quantum yield (PLQY) (∼90%) and a zero-dimensional nature, providing significant dimensionality for the photoactive site. However, this material is insufficient as a white-light emitter owing to the deficient yellow emission. In this paper, we report a novel yellow luminescent phosphor, CsCu2I3, with a 1D structure for the photoactive site. This material exhibits a broadband emission centered at ∼560 nm with a PLQY of ∼8%. We demonstrate a thin film with white-light emission that can be fabricated using one-step spin-coating of a mixed precursor solution of 1D CsCu2I3 (yellow) and 0D Cs3Cu2I5 (blue). |
| first_indexed | 2024-12-10T08:09:31Z |
| format | Article |
| id | doaj.art-e477098ec83b4701bf39ff81572388fa |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-10T08:09:31Z |
| publishDate | 2019-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-e477098ec83b4701bf39ff81572388fa2022-12-22T01:56:36ZengAIP Publishing LLCAPL Materials2166-532X2019-11-01711111113111113-610.1063/1.5127300One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I systemTaehwan Jun0Taketo Handa1Kihyung Sim2Soshi Iimura3Masato Sasase4Junghwan Kim5Yoshihiko Kanemitsu6Hideo Hosono7Materials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanInstitute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, JapanMaterials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanMaterials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanMaterials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanMaterials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanInstitute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, JapanMaterials Research Center for Element Strategy, Tokyo Institute of Technology, Mailbox SE-1, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, JapanLow-dimensional lead-free luminescent halides have emerged as highly promising phosphors for white-light emission. Recently, we reported a broadband blue-emitting copper(I) iodide-based material, Cs3Cu2I5, with a high photoluminescence quantum yield (PLQY) (∼90%) and a zero-dimensional nature, providing significant dimensionality for the photoactive site. However, this material is insufficient as a white-light emitter owing to the deficient yellow emission. In this paper, we report a novel yellow luminescent phosphor, CsCu2I3, with a 1D structure for the photoactive site. This material exhibits a broadband emission centered at ∼560 nm with a PLQY of ∼8%. We demonstrate a thin film with white-light emission that can be fabricated using one-step spin-coating of a mixed precursor solution of 1D CsCu2I3 (yellow) and 0D Cs3Cu2I5 (blue).http://dx.doi.org/10.1063/1.5127300 |
| spellingShingle | Taehwan Jun Taketo Handa Kihyung Sim Soshi Iimura Masato Sasase Junghwan Kim Yoshihiko Kanemitsu Hideo Hosono One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system APL Materials |
| title | One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system |
| title_full | One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system |
| title_fullStr | One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system |
| title_full_unstemmed | One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system |
| title_short | One-step solution synthesis of white-light-emitting films via dimensionality control of the Cs–Cu–I system |
| title_sort | one step solution synthesis of white light emitting films via dimensionality control of the cs cu i system |
| url | http://dx.doi.org/10.1063/1.5127300 |
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