Cited by 159Perovskite Materials and ApplicationsLuminescence Properties of Advanced MaterialsQuantum Dots Synthesis And Properties

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Tunable Near-Infrared Luminescence in Tin Halide Perovskite Devices

Abstract

Infrared emitters are reasonably rare in solution-processed materials. Recently, research into hybrid organo-lead halide perovskite, originally popular in photovoltaics,1-3 has gained traction in light-emitting diodes (LED) due to their low-cost solution processing and good performance.4-9 The lead-based electroluminescent materials show strong colorful emission in the visible region, but lack emissive variants further in the infrared. The concerns with the toxicity of lead may, additionally, limit their wide-scale applications. Here, we demonstrate tunable near-infrared electroluminescence from a lead-free organo-tin halide perovskite, using an ITO/PEDOT:PSS/CH3NH3Sn(Br1-xIx)3/F8/Ca/Ag device architecture. In our tin iodide (CH3NH3SnI3) LEDs, we achieved a 945 nm near-infrared emission with a radiance of 3.4 W sr(-1) m(-2) and a maximum external quantum efficiency of 0.72%, comparable with earlier lead-based devices. Increasing the bromide content in these tin perovskite devices widens the semiconductor bandgap and leads to shorter wavelength emissions, tunable down to 667 nm. These near-infrared LEDs could find useful applications in a range of optical communication, sensing and medical device applications.

Overview

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Crossref · 10.1021/acs.jpclett.6b01047

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31 of 31 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Lai, M. L., Tay, T. Y. S., Sadhanala, A., Dutton, S. E., Li, G., Friend, R. H., & Tan, Z.-K.
Affiliations
  • University of Cambridge (GB)
  • National University of Singapore (SG)
Corresponding author
  • Friend, Richard H.
  • Tan, Zhi-Kuang
Venue
The Journal of Physical Chemistry Letters
Published
2016-06-29
Volume
7
Issue
14
Pages
2653-2658
ISSN
1948-7185 (ISSN-L)
OpenAlex
W2469031146
Cited by
159
References
31
Citations by year
2026: 10 · 2025: 10 · 2024: 17 · 2023: 23 · 2022: 20 · 2021: 23 · 2020: 16 · 2019: 16 · 2018: 12 · 2017: 11 · 2016: 1
FWCI
6.15
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Physical Chemistry Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
Engineering and Physical Sciences Research Council
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence Properties of Advanced Materials
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
Keywords
near-infrared electroluminescence, lead-free perovskites, tunable emission, band gap tuning, perovskite light-emitting diodes, external quantum efficiency, optical communication

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