Bright Mid-Infrared Photoluminescence in Thin-Film Black Phosphorus

ORAL

Abstract

In this work, we report bright mid-infrared photoluminescence (PL) emission from thin-film black phosphorus (BP). The intensity of the PL emission from a 46-nm thick BP is only seven times weaker than that of an indium arsenide (InAs) multiple quantum well (MQW) structure grown by molecular beam epitaxy, in which the total thickness of the quantum wells is of similar thickness to BP. The PL emission is further tunable by the temperature and layer number of thin-film BP. In the 46-nm thick BP, the PL spectra indicates a bandgap of 0.334±0.003 eV at 300 K, which decreases to 0.308±0.003 eV at 80K. The anomalous redshift of the BP bandgap with decreasing temperature agrees with previous theoretical and experimental results, while the overall energy shift is about 60% of the previously reported value obtained from photocurrent spectroscopy. We also measure the layer number dependence of PL spectra of the thin-film BP (6-to 46-nm), and we show that the emission peaks from around 3.3 to 4 mm at 80 K. Our results reveal the promising future of thin-film BP in mid-infrared light emitting and lasering applications.

*We acknowledge the financial support from the National Science Foundation EFRI-2DARE program (1542815).

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Presenters

  • Chen Chen

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ

Authors

  • Chen Chen

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ

  • Feng Chen

    • Electrical Engineering, Yale University, New Haven, CT, USA

  • Xiaolong Chen

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Southern University of Science and Technology

  • Bingchen Deng

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ

  • Brendan Eng

    • Electrical and Computer Engineering, University of Illinois Urbana–Champaign, Champaign, IL, USA

  • Daehwan Jung

    • Institute for Energy Efficiency, University of California Santa Barbara, Santa Barbara, CA, USA

  • Qiushi Guo

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ

  • Shaofan Yuan

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ

  • Kenji Watanabe

    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Materials Science
    • Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044
    • National Institute of Materials Science
    • NIMS, Japan
    • Advanced Materials Laboratory, NIMS
    • National Institute for Materials Science, Tsukuba, Japan
    • National Institute for Materials Science, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan
    • National Institute for Materials Science (NIMS)
    • NIMS Tsukuba
    • National Institute for Materials Science (Japan)
    • NIMS
    • National Institute for Material Science
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan
    • National Institute for Materials Science , Japan
    • National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
    • Advanced Materials Laboratory, National Institute for Materials Science, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
    • National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan
    • National Institute for Material Science - Japan
    • National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan
    • National Institute of Material Science
    • Advanced Material Lab, NIMS
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
    • National Institute for Materials Science, Tsukuba
    • 1-1 Namiki, Tsukuba, National Institute for Materials Science
    • NIMS/Tsukuba
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan
    • National Institute for Materials Science, Namiki, 305-0044, Japan
    • National Institute for Material Science, Japan
    • Advanced Materials Laboratory, NIMS, Japan
    • Columbia University
    • Advanced Materials Labaratory, National Institute for Materials Science
    • National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan
    • National Institute of Materials Science, Japan

  • Takashi Taniguchi

    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan
    • National Institute for Materials Science
    • Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044
    • National Institute of Materials Science
    • NIMS, Japan
    • Advanced Materials Laboratory, NIMS
    • National Institute for Materials Science, Tsukuba, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan
    • National Institute for Materials Science (NIMS)
    • NIMS Tsukuba
    • NIMS
    • National Institute for Material Science
    • National Institute for Materials Science, Japan
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan
    • National Institute for Materials Science , Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
    • National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan
    • National Institute for Material Science - Japan
    • National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan
    • National Institute of Material Science
    • Advanced Material Lab, NIMS
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
    • National Institute for Materials Science, Tsukuba
    • 1-1 Namiki, Tsukuba, National Institute for Materials Science
    • NIMS/Tsukuba
    • National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan
    • National Institute for Materials Science, Namiki, 305-0044, Japan
    • National Institute for Material Science, Japan
    • Advanced Materials Laboratory, NIMS, Japan
    • Advanced Materials Labaratory, National Institute for Materials Science
    • National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan
    • National Institute of Materials Science, Japan

  • Minjoo Lawrence Lee

    • Electrical and Computer Engineering, University of Illinois Urbana–Champaign, Champaign, IL, USA

  • Fengnian Xia

    • Electrical Engineering, Yale University, New Haven, CT, USA
    • Yale Univ