Current-voltage characteristic and electroluminescence of UV LEDs 365 nm at liquid nitrogen temperature

• Autorzy: Veleschuk Vitaly , Vlasenko Alexander , Vlasenko Zoya , Petrenko Ihor , Malyi Yevhen , Borshch Vladimir , Borshch Olena , Shefer Alexander

Identyfikatory

DOI

10.5277/oa190111

• Języki publikacji: EN

Abstrakty

EN

For InGaN/AlGaN/GaN ultraviolet (λ = 365 nm) light emitting diodes, the S-shaped current-voltage characteristic was observed at liquid nitrogen temperature due to the transition from single injection (electrons) to double (electrons and holes) injection. Initially only electron injection into the active region takes place and as the current is increased, the injection of holes starts. It has been found that at the voltage of the minimum of the negative differential resistance region, oscillations of the current, accompanied by increasing electroluminescence intensity arise, and the repetition rate of the oscillations increases with the direct current rise. The intensity of the main ultraviolet and yellow electroluminescence bands sharply increases with increasing current at negative differential resistance region due to the rise of holes injection.

Słowa kluczowe

EN

S-shaped current-voltage characteristic; UV LED

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2019
• Tom: Vol. 49, nr 1
• Strony: 125--133
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Veleschuk Vitaly

• V.Ye. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauki Avenue 41, 03028 Kyiv, Ukraine

autor

Vlasenko Alexander

• V.Ye. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauki Avenue 41, 03028 Kyiv, Ukraine

autor

Vlasenko Zoya

• V.Ye. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauki Avenue 41, 03028 Kyiv, Ukraine

autor

Petrenko Ihor

• Institute for Nuclear Research, National Academy of Sciences of Ukraine, Nauki Avenue 47, 03028 Kyiv, Ukraine

autor

Malyi Yevhen

• Institute for Nuclear Research, National Academy of Sciences of Ukraine, Nauki Avenue 47, 03028 Kyiv, Ukraine

autor

Borshch Vladimir

• Poltava National Technical Yuri Kondratyuk University, Pershotravnevyi Avenue 24, 36011 Poltava, Ukraine

autor

Borshch Olena

• Poltava National Technical Yuri Kondratyuk University, Pershotravnevyi Avenue 24, 36011 Poltava, Ukraine

autor

Shefer Alexander

• Poltava National Technical Yuri Kondratyuk University, Pershotravnevyi Avenue 24, 36011 Poltava, Ukraine

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).