Solution-processed high-performance colloidal quantum dot tandem photodetectors on flexible substrates

Zhenyu Jiang, Guanjun You, Li Wang, Jie Liu, Wenjia Hu, Yu Zhang, Jian Xu

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We report a high-performance colloidal quantum dot (CQD)-based near-infrared tandem photodetector fabricated on flexible substrates via solution-processed method. The tandem photodetector on poly(ethylene terephthalate) substrates exhibited low dark current and high detectivities over ∼8.8×1011 Jones at near infrared range at -0.5V bias and over ∼1013 Jones near 0 bias. The critical bend radii of ∼8mm and ∼3mm have been demonstrated for tensile and compressive bending, respectively. The performance of photodetectors remains stable under mechanical stress, making PbSe CQD material a promise candidate for flexible infrared sensing applications.

Original languageEnglish (US)
Article number084303
JournalJournal of Applied Physics
Volume116
Issue number8
DOIs
StatePublished - Jan 1 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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