Lateral Monolayer MoSe2 -WSe2 p-n Heterojunctions with Giant Built-In Potentials

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Shuai JiaJun Lou

Abstract

2D transition metal dichalcogenides (TMDs) have exhibited strong application potentials in new emerging electronics because of their atomic thin structure and excellent flexibility, which is out of field of tradition silicon technology. Similar to 3D p-n junctions, 2D p-n heterojunctions by laterally connecting TMDs with different majority charge carriers (electrons and holes), provide ideal platform for current rectifiers, light-emitting diodes, diode lasers and photovoltaic devices. Here, growth and electrical studies of atomic thin high-quality p-n heterojunctions between molybdenum diselenide (MoSe2 ) and tungsten diselenide (WSe2 ) by one-step chemical vapor deposition method are reported. These p-n heterojunctions exhibit high built-in potential (≈0.7 eV), resulting in large current rectification ratio without any gate control for diodes, and fast response time (≈6 ms) for self-powered photodetectors. The simple one-step growth and electrical studies of monolayer lateral heterojunctions open up the possibility to use TMD heterojunctions for functional devices.

References

Jan 25, 2005·Nature Materials·Robert J WaltersHarry A Atwater
Jul 23, 2013·Nature Materials·Chuan WangAli Javey
Mar 13, 2014·Nature Nanotechnology·Andreas PospischilThomas Mueller
Mar 13, 2014·Nature Nanotechnology·Jason S RossXiaodong Xu
Apr 1, 2014·ACS Nano·Xingli WangPulickel M Ajayan
Jul 25, 2014·Nano Letters·Marco M FurchiThomas Mueller
Aug 12, 2014·Nature Nanotechnology·Chul-Ho LeePhilip Kim
Aug 26, 2014·Nature Materials·Chunming HuangXiaodong Xu
Sep 30, 2014·Nature Materials·Yongji GongPulickel M Ajayan
Sep 30, 2014·Nature Nanotechnology·Xidong DuanXiangfeng Duan
Feb 25, 2015·Nature Communications·Pasqual RiveraXiaodong Xu
Aug 4, 2015·Nano Letters·Yongji GongPulickel M Ajayan
Nov 28, 2015·Science·Matin AmaniAli Javey
Jul 5, 2016·Nature Materials·Alex ChortosZhenan Bao
Aug 5, 2016·Angewandte Chemie·Bo LiPulickel M Ajayan
Aug 5, 2017·ACS Nano·Jing ZhangJun Lou

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Citations

Aug 1, 2021·Nanoscale Research Letters·Caihong LiGuifu Zou

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