Ultrasensitive photodetectors exploiting electrostatic trapping and percolation transport

Photodetector sensitivity is limited by charge carrier recombination. Here, Zhang et al. use nanocrystal ligand engineering and sintering to provide separate pathways for electron and holes, and to fabricate photodetectors with a high detectivity, especially promising for applications in low-light i...

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Autores principales: Yingjie Zhang, Daniel J. Hellebusch, Noah D. Bronstein, Changhyun Ko, D. Frank Ogletree, Miquel Salmeron, A. Paul Alivisatos
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2016
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Acceso en línea:https://doaj.org/article/ffbed7845f9744f38279b50cb5e8008a
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Sumario:Photodetector sensitivity is limited by charge carrier recombination. Here, Zhang et al. use nanocrystal ligand engineering and sintering to provide separate pathways for electron and holes, and to fabricate photodetectors with a high detectivity, especially promising for applications in low-light imaging.