SPbPU Journal - Physics and Mathematics
St. Petersburg Polytechnic University Journal - Physics and Mathematics Peter the Great St. Petersburg Polytechnic University
Since 2008
ISSN 2304-9782
ISSN 2618-8686
ISSN 2405-7223
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Articles by keywords "quantum efficiency"

Current and temperature dependences of optical characteristics of powerful deep UV AlGaN LED (λ = 270 nm)

Optoelectronic and nanoelectronic devices
Ivanov A.E. Talnishnikh Nadezhda A. Chernyakov A.E. Zakgeim A.L.
  • Year: 2023
  • Volume: 16
  • Issue: 1.3
  • 7
  • 709
  • Pages: 170-175

Change of radiative and low-frequency noise characteristics of UV LEDs based on InGaN/GaN quantum wells at liquid nitrogen temperature

Physical electronics
Ivanov A.M. Klochkov A.V.
  • Year: 2023
  • Volume: 16
  • Issue: 1.2
  • 5
  • 659
  • Pages: 96-102

Mechanisms leading to thermal quantum efficiency droop in green InGaN/GaN LEDs

Physical electronics
Shabunina E.I. Ivanov A.E. Talnishnikh Nadezhda A. Kartashova A.P. Poloskin D.S. Shmidt N.P. Zakgeim A.L. Chernyakov A.E.
  • Year: 2023
  • Volume: 16
  • Issue: 1.2
  • 7
  • 780
  • Pages: 70-76

Measurement of the internal quantum efficiency of emission in the local region of the LED chip

Physical optics
Frolov I.V. Radaev O.A. Sergeev V.A.
  • Year: 2022
  • Volume: 15
  • Issue: 3.3
  • 8
  • 1167
  • Pages: 226-229

A comprehensive study of electroluminescence and temperature distribution of “UX:3” AlInGaN LED

Physical electronics
Ivanov A.E. Aladov A.V. Chernyakov A.E. Zakgeim A.L.
  • Year: 2022
  • Volume: 15
  • Issue: 3.3
  • 7
  • 1219
  • Pages: 142-146

Visible quantum cutting in green emitting BaF2: Gd3+, Tb3+ phosphors: an approach towards mercury-free lamps

Physical materials technology
Jaiswal S. R. Sawala N. S. Koparkar K. A. Nagpure P. A. Bhatkar V. B. Omanwar Shreeniwas K.
  • Year: 2017
  • Volume: 10
  • Issue: 3
  • 87
  • 5559
  • Pages: 64-74

Development features of degradation processes in high-power blue InGaN/GaN light-emitting diodes

Experimental technique and devices
Basalkevich T.M. Talnishnikh Nadezhda A. Shmidt N.P.
  • Year: 2012
  • Issue: 3
  • 0
  • 5166
  • Pages: 45-48