New fluorescent materials with a low cost, hypotoxicity, and concealment are desired for the application of anti-counterfeiting. Herein, we report a CsCu2I3@Cs3Cu2I5 composite with a triple-mode photoluminescence (PL) feature by simply adjusting the excitation wavelengths, which are ascribed to the multiple excited states of different phases in the CsCu2I3@Cs3Cu2I5 composite. The broadband emission and high quantum yield (∼51) of the composite originate from the structure-oriented self-trapped excitons effect of Cs3Cu2I5 and CsCu2I3 phases. Moreover, the incorporation of polyethylene oxide (PEO) into this composite improves the stability of CsCu2I3@Cs3Cu2I5@PEO against harsh environments. The CsCu2I3@Cs3Cu2I5@PEO composite has a slight decay of ∼5 of its initial PL intensity and only a 3.5 shift of the corresponding color coordinate after 30 days of storage. More importantly, its initial PL intensity shows only 10.3 decay under ultraviolet exposure for 200 h. Our work provides a promising approach to design materials for advanced anti-counterfeiting applications.
Keyword: excitons; fluorescent materials; photoluminescence; band emission; solid state chemistry; photochemical reactions
Название публикации (dc.title) | Excitation wavelength dependent triple-mode photoluminescence of copper-based halides for advanced anti-counterfeiting |
Автор/ы (dc.contributor.yazarlar) | Chengjun Liu, Yuyi Zhang, Manman Luo, Lixi Wang, Xingyu Liu, Jiangyong Pan, Zihan Zhao, Fan Fang, Lei Mao, Yuling Huang, Bingqi Wang, Congyuan Lin, Wei Lei, Qing Li, Zhiwei Zhao, Jun Wu, Zhuoya Zhu, Mehmet Ertugrul, Xiaobing Zhang, Jing Chen, Dewei Zhao |
Вид публикации (dc.type) | Makale |
Язык (dc.language) | İngilizce |
Год публикации (dc.date.issued) | 2023 |
Национальный/Международный (dc.identifier.ulusaluluslararasi) | Uluslararası |
Источник (dc.relation.journal) | APL Materials |
Номер (dc.identifier.issue) | 7 |
Том/№ (dc.identifier.volume) | 11 |
Страница (dc.identifier.startpage) | Article Number: 071109 |
ISSN/ISBN (dc.identifier.issn) | ISSN: 2166-532X |
Издатель (dc.publisher) | AIP Publishing |
Базы данных (dc.contributor.veritaban) | Web of Science Core Collection |
Базы данных (dc.contributor.veritaban) | AIP Publishing |
Базы данных (dc.contributor.veritaban) | Scopus |
Вид индекса (dc.identifier.index) | SCI Expanded |
Вид индекса (dc.identifier.index) | Scopus |
Импакт-фактор (dc.identifier.etkifaktoru) | 6,1 / 2022-WOS / Son 5 yıl: 5,9 |
Резюме (dc.description.abstract) | New fluorescent materials with a low cost, hypotoxicity, and concealment are desired for the application of anti-counterfeiting. Herein, we report a CsCu2I3@Cs3Cu2I5 composite with a triple-mode photoluminescence (PL) feature by simply adjusting the excitation wavelengths, which are ascribed to the multiple excited states of different phases in the CsCu2I3@Cs3Cu2I5 composite. The broadband emission and high quantum yield (∼51) of the composite originate from the structure-oriented self-trapped excitons effect of Cs3Cu2I5 and CsCu2I3 phases. Moreover, the incorporation of polyethylene oxide (PEO) into this composite improves the stability of CsCu2I3@Cs3Cu2I5@PEO against harsh environments. The CsCu2I3@Cs3Cu2I5@PEO composite has a slight decay of ∼5 of its initial PL intensity and only a 3.5 shift of the corresponding color coordinate after 30 days of storage. More importantly, its initial PL intensity shows only 10.3 decay under ultraviolet exposure for 200 h. Our work provides a promising approach to design materials for advanced anti-counterfeiting applications. |
Резюме (dc.description.abstract) | Keyword: excitons; fluorescent materials; photoluminescence; band emission; solid state chemistry; photochemical reactions |
URL (dc.rights) | https://pubs.aip.org/aip/apm/article/7.11.071109/2901413/Excitation-wavelength-dependent-triple-mode |
DOI (dc.identifier.doi) | 10.1063/5.0152479 |
Факультет / Институт (dc.identifier.fakulte) | Mühendislik Fakültesi |
Кафедра (dc.identifier.bolum) | Elektrik-Elektronik Mühendisliği Bölümü |
Автор(ы) в учреждении (dc.contributor.author) | Mehmet ERTUĞRUL |
№ регистрации (dc.identifier.kayitno) | BLC99F4134 |
Дата регистрации (dc.date.available) | 2023-07-24 |
Заметка (Год публикации) (dc.identifier.notyayinyili) | July 2023 |
Wos No (dc.identifier.wos) | WOS:001025208200002 |
Тематический рубрикатор (dc.subject) | excitons |
Тематический рубрикатор (dc.subject) | fluorescent materials |
Тематический рубрикатор (dc.subject) | photoluminescence |
Тематический рубрикатор (dc.subject) | band emission |
Тематический рубрикатор (dc.subject) | solid state chemistry |
Тематический рубрикатор (dc.subject) | photochemical reactions |