华体会官方网页版-华体会(中国):P-i-n photodetector with active GePb layer grown by sputtering epitaxy
Author(s): Yu, JL (Yu, Jiulong); Lin, GY (Lin, Guangyang); Xia, SL (Xia, Shilong); Huang, W (Huang, Wei); Yang, TW (Yang, Tianwei); Jiao, JL (Jiao, Jinlong); Liu, XQ (Liu, Xiangquan); Chen, SY (Chen, Songyan); Li, C (Li, Cheng); Zheng, J (Zheng, Jun); Li, J (Li, Jun)
Source: APPLIED PHYSICS EXPRESS?Volume: 17?Issue: 4??Article Number: 045501??DOI: 10.35848/1882-0786/ad3dc1??Published Date: 2024 APR 1?
Abstract: In this paper, single-crystal GePb films were obtained by magnetron sputtering with high substrate temperature and rapid deposition rate. The GePb films have high crystalline qualities and smooth surface. The Pb content reached 1.29% and no segregation was observed. Based on this, a GePb based p-i-n photodetector was successfully prepared. The device showed a RT dark current density of 5.83 mA cm-2 at -1.0 V and a cutoff wavelength of 1990 nm, which covers all communication windows. At the wavelength of 1625 nm, responsivity of the photodetector reached 0.132 A W-1 at -1.0 V. The device demonstrates potential application in optical communications.
Accession Number: WOS:001208057900001
ISSN: 1882-0778
eISSN: 1882-0786
