NIR-I Excitable and NIR-II Emissive Cr, Yb, Co-Doped Cs2NaScCl6 Double Perovskite Halides for Biodetection DOI
Ting Zhang, Xiaoqian Zhang, Qinan Mao

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Lanthanide doping has been instrumental in tuning the emissions of double perovskite halides (DPHs) into near-infrared (NIR) region. However, limited penetration depth UV excitation and typically low photoluminescence quantum yield (PLQY) these materials restrict their utility biomedical applications. In this paper, Cr3+-doped lead-free DPHs (Cs2NaScCl6:Cr3+) have explored, featuring a broadband NIR emission spanning 800–1300 nm an impressive PLQY 76.9%. Oriented toward biological applications, we employ Yb3+ as codopant to be introduced Cs2NaScCl6:Cr3+. The novel Cs2NaScCl6:Cr3+,Yb3+ crystal powder displays red-shifted (peaking at 995 nm) with remarkably narrower full width half-maximum (fwhm) 51 nm. Importantly, efficient energy transfer between Cr3+ enables maintain 46.1% upon 780 excitation. Leveraging its NIR-I excitable NIR-II emissive properties, presents great potential biodetection bioimaging Its superior efficiency, high PLQY, favorable spectral characteristics position material promising candidate for advanced techniques requiring deep tissue imaging contrast.

Language: Английский

NIR-I Excitable and NIR-II Emissive Cr, Yb, Co-Doped Cs2NaScCl6 Double Perovskite Halides for Biodetection DOI
Ting Zhang, Xiaoqian Zhang, Qinan Mao

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Lanthanide doping has been instrumental in tuning the emissions of double perovskite halides (DPHs) into near-infrared (NIR) region. However, limited penetration depth UV excitation and typically low photoluminescence quantum yield (PLQY) these materials restrict their utility biomedical applications. In this paper, Cr3+-doped lead-free DPHs (Cs2NaScCl6:Cr3+) have explored, featuring a broadband NIR emission spanning 800–1300 nm an impressive PLQY 76.9%. Oriented toward biological applications, we employ Yb3+ as codopant to be introduced Cs2NaScCl6:Cr3+. The novel Cs2NaScCl6:Cr3+,Yb3+ crystal powder displays red-shifted (peaking at 995 nm) with remarkably narrower full width half-maximum (fwhm) 51 nm. Importantly, efficient energy transfer between Cr3+ enables maintain 46.1% upon 780 excitation. Leveraging its NIR-I excitable NIR-II emissive properties, presents great potential biodetection bioimaging Its superior efficiency, high PLQY, favorable spectral characteristics position material promising candidate for advanced techniques requiring deep tissue imaging contrast.

Language: Английский

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