2022 International Conference on Solid State Devices and Materials

講演情報

Oral Presentation

05: Photonics: Devices / Integration / Related Technology

[A-2] New Materials and Platforms for Photonics

2022年9月27日(火) 14:00 〜 15:30 101 (1F)

Session Chair: Xuejun Xu (NTT Corp.), Ueli Koch (ETH Zurich)

14:30 〜 14:45

[A-2-02] Current injection and luminescence properties of wurtzite InP nanowires with crystal phase transition

〇Yuki Azuma1, Shun Kimura1, Hironori Gamo1, Junichi Motohisa1, Katsuhiro Tomioka1 (1. Hokkaido University (Japan))

Presentation style: On-site (in-person)

https://doi.org/10.7567/SSDM.2022.A-2-02

We characterized current injection and electroluminescence (EL) properties of wurtzite (WZ) InP nanowire (NW) light-emitting diodes (LEDs) with axial junction. The EL spectra showed two peaks originated from zinc-blende (ZB) and WZ phase. Also, the EL spectra exhibited two different behaviors although the LED junction structure was same. One showed single EL peak, originated from only bandgap of ZB InP. The another showed two EL peaks that originated from ZB and WZ phase. The difference of the EL behavior was resulted from the difference in contact position and depletion layer spreading.

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