Short-Wave Infrared Optoelectronics with Colloidal CdHgSe/ZnCdS Core/Shell Nanoplatelets

IF 6.5 1区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Photonics Pub Date : 2024-12-19 DOI:10.1021/acsphotonics.4c01944

Hossein Roshan, Anatol Prudnikau, Jinfei Dai, Matilde Cirignano, Francesco De Boni, Mirko Prato, Fabian Paulus, Vladimir Lesnyak, Francesco Di Stasio

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Abstract

Colloidal semiconductor nanocrystals (NCs) are an efficient and cost-effective class of nanomaterials for optoelectronic applications. Advancements in NC-based optoelectronic devices have resulted from progress in synthetic chemistry, adjustable surface properties, and optimized device architectures. Semiconductor nanoplatelets (NPLs) stand out among other NCs due to their precise growth control, yielding uniform thickness with submonolayer roughness. In this study, we demonstrate the versatility of core/shell Cd_xHg_1–xSe/Zn_yCd_1–yS NPLs for optoelectronic applications in the short-wave infrared (SWIR) spectral range. We employed the very same core/shell NPLs for the fabrication of light-emitting diodes and photodetectors alike, achieving significant performance in both electroluminescence (external quantum efficiency ranging from 7.5% at 1280 nm to 3.8% at 1550 nm) and detection (responsivity of 0.24 A W^–1 at 1200 nm).

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来源期刊

ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.90

自引率

5.70%

发文量

438

审稿时长

2.3 months

期刊介绍： Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.