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Ultralow Dark Current Density in PbS Colloidal Quantum Dot Short-Wave Infrared Photodetectors with Homogeneous Energy Landscape

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Colloidal quantum dot (CQD) thin films hold promise for low-cost and high-resolution short-wave infrared imaging, yet their performance is hindered by an inhomogeneous energy landscape arising from the CQD synthetic polydispersity and ligand exchange process. ... ...