A Self-Powered, Sub-nanosecond-Response Solution-Processed Hybrid Perovskite Photodetector for Time-Resolved Photoluminescence-Lifetime Detection

Liang Shen, Yanjun Fang, Dong Wang, Yang Bai, Yehao Deng, Mengmeng Wang, Yongfeng Lu, Jinsong Huang

Research output: Contribution to journalArticle

128 Scopus citations

Abstract

A solution-processed photodetector based on organic?inorganic hybrid perovskites (OIHP) with a sub-nanosecond response time at zero-bias operation was reported. PTAA dissolved in toluene was spun on clean ITO substrates at a speed of 5000rpm. The film was then annealed at 100°C for 10 min. Lead iodine (PbI2) and methylammonium iodide (MAI) were dissolved in dimethylformamide and 2-propanol with concentrations of 630 and 65 mg mL-1, respectively. The PbI2 solution was spun on a PTAA layer at 6000 rpm for 35 s. Then the PbI2 film was transferred onto a hot plate at 90°C for quick drying. The light intensity was calibrated using a silicon diode. The temperature dependence of the response speed was measured by the Linkam Scientific Instruments LNP95 cooling system.This is the first time a low-cost solution-processed photodetector has been shown to meet the requirements for application in very-high-performance scientific equipment.

Original languageEnglish (US)
Pages (from-to)10794-10800
Number of pages7
JournalAdvanced Materials
Volume28
Issue number48
DOIs
StatePublished - Jan 1 2016

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Keywords

  • perovskite photodetectors
  • response speed
  • time-resolved photoluminescence lifetime
  • transient photocurrent

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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