TMDCs/Si异质结
Lopez-Sanchez, O., Lembke, D., Kayci, M., Radenovic, A., & Kis, A. (2013). Ultrasensitive photodetectors based on monolayer MoS 2. Nature nanotechnology, 8(7), 497-501.
8%
37.4(610nm) 1011
235/1740
CdS纳米线/Si
-1V,400-1550nm 243% 1370(700nm) 4.39×1011 -
04
2D材料Si基异质结
石墨烯/Si异质结
Schematic illustration of graphene-based photodetector with asymmetric metal contacts
Duan, X., Wang, C., Shaw, J. C., Cheng,
R., Chen, Y., Li, H., ... & Jiang, J. (2014).
Schematic
of
lateral
epitaxial
growth
heterostructure
Lateral epitaxial growth of twodimensional layered semiconductor
InP QD/Si: 较低 2.23mA/W
TEM microimage of MoS2 QD
the optical characteristic of the device
Mukherjee, S., Maiti, R., Katiyar, A. K., Das, S., & Ray, S. K. (2016). Novel colloidal MoS 2 quantum dot heterojunctions on silicon platforms for multifunctional optoelectronic devices. Scientific reports, 6, 29016.
Schematic illustration of a graphene/n-Si heterojunction photodetector with an interfacial oxide layer
黑磷(BP)/Si异质结
material of BP photodetector of BP
Wang, F., Wang, Z., Yin, L., Cheng, R., Wang, J., Wen, Y., ... & He, J. (2018). 2D library beyond graphene and transition metal dichalcogenides: a focus on photodetection. Chemical Society Reviews, 47(16), 6296-6341.
WSe2/SnS2/BN/Si heterostructure (ME)
Wang, F., Wang, Z., Yin, L., Cheng, R., Wang, J., Wen, Y., ... & He, J. (2018). 2D library beyond graphene and transition metal dichalcogenides: a focus on photodetection. Chemical Society Reviews, 47(16), 6296-6341.
低维硅基异质结光电探测器
——周劲澍
目录
CONTENTS
01
背景概述
02
0D异质结
03
1D异质结
04
2D异质结
05
总结与展望
06
工作安排
01
背景概述
背景概述
光通信 光成像 太空探索
02
0D材料Si基异质结
量子点(QD)探测器
QD的特点：
光吸收率高; 带隙可调; 外量子效率高。
探测器：
MoS2 QD/Si： 200% 850mA/W
纳米颗粒/Si异质结探测器
纳米颗粒的特点：
颗粒表面局部场增强；
与光的相互作用增强；
在纳米金属表面有很强的耦合作用。
探测器：
纳米Au/Si：
-
8.17mA/W
纳米TiO2/Si阵列: 157% 801.3mA/W
Schaadt, D. M., Feng, B., & Yu, E. T. (2005). Enhanced semiconductor optical absorption via surface plasmon excitation in metal nanoparticles. Applied Physics Letters, 86(6), 063106.
Ye, L., Li, H., Chen, Z., & Xu, J. (2016). Near-infrared photodetector based on MoS2/black phosphorus heterojunction. Acs Photonics, 3(4), 692-699.
optical image of vertical heterostructure
Schematic model of graphene nanoribbon photodetector
Bao, Q., & Loh, K. P. (2012). Graphene photonics, plasmonics, and broadband optoelectronic devices. ACS nano, 6(5), 3677-3694.
heterojunctions. Nature
nanotechnology, 9(12), 1024.
其他2D异质结
MoS2/MoTe2 heterostructure
MoS2/ReSe2/Si heterostructure
Wang, X., Huang, L., Peng, Y., Huo, N., Wu, K., Xia, C., ... & Li, J. (2016). Enhanced rectification, transport property and photocurrent generation of multilayer ReSe 2/MoS 2 p–n heterojunctions. Nano Research, 9(2), 507-516.
特点： 高面容比， 电荷传输快， 光散射效应和光捕获效应强
Cao, L., White, J. S., Park, J. S., Schuller, J. A., Clemens, B. M., & Brongersma, M. L. (2009). Engineering light absorption in semiconductor nanowire devices. Nature materials, 8(8), 643-647.
200% 850 (550 nm)
-
2.23
4200% 25000(750nm)
-
8.17(1200nm)
157% 801.3探测率源自 Jones）8×1011
响应时间（μs ）
-
-
132/147ms
9×1012
-
1.78×1010 -
2.44×1010 -
备注： GQD-石墨烯量子点
03 1D材料Si基异质结
Gr/Bi2Se3/Si heterostructure
2D异质结探测器汇总
材料
Graphene/n-Si 栅控GS光电探测器 GSOI肖特基结 BP/Si探测器
1D异质结探测器汇总
材料 InAs纳米线/Si
测试条件 0V,300-3000nm
EQE
光响应率 探测率（ 响应时间
(%)
(mA W-1)
Jones） （μs）
20% 160
-
-
ZnO纳米棒/Si 0V,300-800nm
-
300(UV)
-
500(可见光)
Se纳米管/n-Si -2V,350-700nm
Liu, Y., Wang, F., Wang, X., Wang, X., Flahaut, E., Liu, X., ... & Zhang, R. (2015). Planar carbon nanotube–graphene hybrid films for high-performance broadband photodetectors. Nature communications, 6(1), 1-7.
其他2D异质结
~107A/W
QD/Gr/Si heterostructure
SLG/WS2/SLG heterostructure
Wang, F., Wang, Z., Yin, L., Cheng, R., Wang, J., Wen, Y., ... & He, J. (2018). 2D library beyond graphene and transition metal dichalcogenides: a focus on photodetection. Chemical Society Reviews, 47(16), 6296-6341.
其他2D异质结
optical image and optical characteristics of BP/MoS2 heterostructure
Wang, F., Wang, Z., Yin, L., Cheng, R., Wang, J., Wen, Y., ... & He, J. (2018). 2D library beyond graphene and transition metal dichalcogenides: a focus on photodetection. Chemical Society Reviews, 47(16), 6296-6341.