Skip to main content
SpringerLink
Log in

Features of Operation of High-Power AlInGaN LEDs at High Pulse Currents

  • Published:
Technical Physics Letters Aims and scope Submit manuscript

Abstract

The current dependences of the power and spectral characteristics, including their distribution (mapping) over the emitting surface, of AlInGaN LEDs of a “vertical” design have been studied in a wide range of operating currents up to ~70 A. It was found that, starting from a certain level of excitation, it is incorrect to use the concept of the average current density when analyzing the efficiency drop. The main factor in reducing the internal quantum efficiency and the radiation output coefficient, which limits the energy capabilities of the LED, is the effect of current crowding to the contacts.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.

Similar content being viewed by others

REFERENCES

  1. S. Yu. Karpov, Opt. Quant. Electron. 47, 1293 (2015). https://doi.org/10.1007/s11082-014-0042-9

    Article  Google Scholar 

  2. N. M. Shmidt, E. I. Shabunina, A. E. Chernyakov, A. E. Ivanov, N. A. Tal’nishnikh, and A. L. Zakgeim, Tech. Phys. Lett. 46, 1253 (2020). https://doi.org/10.1134/S1063785020120275

    Article  ADS  Google Scholar 

  3. P. Pichon, A. Barbet, J.-P. Blanchot, F. Druon, F. Balembois, and P. Georges, Optica 5, 1236 (2018). https://doi.org/10.1364/OPTICA.5.001236

    Article  ADS  Google Scholar 

  4. B. Hahn, B. Galler, and K. Engl, Jpn. J. Appl. Phys. 53, 100208 (2014). https://doi.org/10.7567/JJAP.53.100208

    Article  ADS  Google Scholar 

  5. I. E. Titkov, S. Yu. Karpov, A. Yadav, V. L. Zerova, M. Zulonas, B. Galler, M. Strassburg, I. Pietzonka, H. Lugauer, and E. U. Rafailov, IEEE J. Quant. Electron. 50, 911 (2014). https://doi.org/10.1109/JQE.2014.2359958

    Article  ADS  Google Scholar 

  6. A. E. Chernyakov, K. A. Bulashevich, S. Yu. Karpov, and A. L. Zakgeim, Phys. Status Solidi A 210, 466 (2013). https://doi.org/10.1002/pssa.201200658

    Article  ADS  Google Scholar 

  7. A. Keppens, W. R. Ryckaert, G. Deconinck, and P. Hanselaer, J. Appl. Phys. 108, 043104 (2010). https://doi.org/10.1063/1.3463411

    Article  ADS  Google Scholar 

  8. D. A. Zakheim, G. V. Itkinson, M. V. Kukushkin, L. K. Markov, O. V. Osipov, A. S. Pavlyuchenko, I. P. Smirnova, A. E. Chernyakov, and D. A. Bauman, Semiconductors 48, 1254 (2014).

    Article  ADS  Google Scholar 

  9. A. Laubsch, M. Sabathil, J. Baur, M. Peter, and B. Hahn, IEEE Trans. Electron Dev. 57, 79 (2010). https://doi.org/10.1109/TED.2009.2035538

    Article  ADS  Google Scholar 

Download references

ACKNOWLEDGMENTS

The studies of the LED parameters were carried out at the Elemental Base of Radiophotonics and Nanoelectronics: Technology, Diagnostics, Metrology Center for Collective Use.

Author information

Authors and Affiliations

  1. Submicron Heterostructures for Microelectronics, Research & Engineering Center, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    A. L. Zakgeim, A. E. Ivanov & A. E. Chernyakov

  2. St. Petersburg Electrotechnical University “LETI”, 193376, St. Petersburg, Russia

    A. E. Ivanov

Authors
  1. A. L. Zakgeim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. E. Ivanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. E. Chernyakov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. L. Zakgeim.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by N. Petrov

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zakgeim, A.L., Ivanov, A.E. & Chernyakov, A.E. Features of Operation of High-Power AlInGaN LEDs at High Pulse Currents. Tech. Phys. Lett. 47, 834–837 (2021). https://doi.org/10.1134/S1063785021080290

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063785021080290

Keywords:

Search

Navigation