公开(公告)号：US20190356114A1

公开(公告)日：2019-11-21

申请号：US15982252

申请日：2018-05-17

Applicant: Wisconsin Alumni Research Foundation

Inventor： Zhenqiang Ma ,  Munho Kim ,  Jung-Hun Seo ,  Sang June Cho

IPC: H01S5/22 ,  H01S5/34

Abstract: Superlattice structures composed of single-crystal semiconductor wells and amorphous barriers are provided. Also provided are methods for fabricating the superlattice structures and electronic, optoelectronic, and photonic devices that include the superlattice structures. The superlattice structures include alternating quantum barrier layers and quantum well layers, the quantum barrier layers comprising an amorphous inorganic material and the quantum well layers comprising a single-crystalline semiconductor.

公开(公告)号：US09955087B1

公开(公告)日：2018-04-24

申请号：US15395905

申请日：2016-12-30

Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION

Inventor： Zhenqiang Ma ,  Munho Kim

IPC: H01L21/00 ,  H04N5/33 ,  H01L31/0288 ,  H01L31/18 ,  H01L31/0224 ,  G02B6/122 ,  G02B6/12

CPC classification number: H04N5/33 ,  G02B6/122 ,  G02B2006/12061 ,  G02B2006/12138 ,  H01L31/028 ,  H01L31/0352 ,  H01L31/1085 ,  H01L31/1808

Abstract: Photodetectors based on hydrogen-doped, single-crystalline germanium, including waveguide integrated photodetectors for photonic chip applications are provided. Hydrogen doping provides the single-crystalline germanium with increased radiation absorption in the near infrared region of the electromagnetic spectrum, including at wavelengths of 1550 nm and above.