Janus CsPbBr3–AgBiS2 Heteronanocrystals for High-Efficiency Photodetectors DOI
Hengwei Qiu, Yongqiang Ji, Weiyan Hu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Heteronanocrystals (HNCs) composed of colloidal lead halide perovskites and chalcogenides always offer unique photoelectric properties. Nevertheless, synthesizing perovskite-chalcogenide HNCs has been a tough challenge due to their completely different growth dynamics. Here, we present an effective strategy synthesize Janus CsPbBr3-AgBiS2 by in situ CsPbBr3 NCs on prepared AgBiS2 quantum dot (QDs). The as-synthesized show large range absorption characteristics from visible near-infrared (NIR) wavebands. Femtosecond transient (TA) spectroscopy reveals the transfer both electron hole AgBiS2. enhanced exciton dissociation 150 °C leads photoconductors with drastically improved responsivity (R 183.8 A W-1) specific detectivity (D* 5.0 × 1014 Jones). This work not only provides reliable method for combining ionic covalent but also great potential future practical applications, such as NC (QD) solar cell.

Language: Английский

Epitaxially Connected CsPbBr3–PbTe Perovskite-Chalcogenide Nanocrystal Heterostructures DOI

Rajdeep Das,

Souvik Banerjee, Diptam Nasipuri

et al.

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Language: Английский

Citations

0
Janus CsPbBr3–AgBiS2 Heteronanocrystals for High-Efficiency Photodetectors DOI
Hengwei Qiu, Yongqiang Ji, Weiyan Hu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Heteronanocrystals (HNCs) composed of colloidal lead halide perovskites and chalcogenides always offer unique photoelectric properties. Nevertheless, synthesizing perovskite-chalcogenide HNCs has been a tough challenge due to their completely different growth dynamics. Here, we present an effective strategy synthesize Janus CsPbBr3-AgBiS2 by in situ CsPbBr3 NCs on prepared AgBiS2 quantum dot (QDs). The as-synthesized show large range absorption characteristics from visible near-infrared (NIR) wavebands. Femtosecond transient (TA) spectroscopy reveals the transfer both electron hole AgBiS2. enhanced exciton dissociation 150 °C leads photoconductors with drastically improved responsivity (R 183.8 A W-1) specific detectivity (D* 5.0 × 1014 Jones). This work not only provides reliable method for combining ionic covalent but also great potential future practical applications, such as NC (QD) solar cell.

Language: Английский

Citations

0