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- W3080450181 abstract "The telecommunication wavelength of λ = 1.5 μm has been playing an important role in various fields. In particular, performing photodetection at this wavelength is challenging, demanding more performance stability and lower manufacturing cost. In this work, upconversion nanoparticle (UCNP)/Si hybrid photodetectors (hybrid PDs) are presented, made by integrating solution-processed Er3+-doped NaYF4 upconversion nanoparticles (UCNPs) onto a silicon photodetector. After optimization, we demonstrated that a layer of UCNPs can well lead to an effective spectral sensitivity extension without sacrificing the photodetection performance of the Si photodetector in the visible and near-infrared (near-IR) spectrum. Under λ = 1.5 μm illumination, the hybrid UCNPs/Si-PD exhibits a room-temperature detectivity of 6.15 × 1012 Jones and a response speed of 0.4 ms. These UCNPs/Si-PDs represent a promising hybrid strategy in the quest for low-cost and broadband photodetection that is sensitive in the spectrum from visible light down to the short-wave infrared." @default.
- W3080450181 created "2020-09-01" @default.
- W3080450181 creator A5012814582 @default.
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- W3080450181 date "2020-09-21" @default.
- W3080450181 modified "2023-10-18" @default.
- W3080450181 title "Upconversion nanoparticles extending the spectral sensitivity of silicon photodetectors to λ = 1.5 μm" @default.
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- W3080450181 doi "https://doi.org/10.1088/1361-6528/abb2c4" @default.
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