Table 1 Comparison of the performance of different room temperature NIR photodetectors. W represents response wavelength, R represents the photoresponsivity, η represents the external quantum efficiency, D* represents detectivity, and t represents response time
From: Near-Infrared Photoelectric Properties of Multilayer Bi2O2Se Nanofilms
W (nm) | R (A/W) | η (%) | D* (Jones) | t | Reference | |
|---|---|---|---|---|---|---|
Multilayer Bi2O2Se | 850–1550 | 101 | 20,300 | 1.9 × 1010 | < 30 ms | This work |
Thin-layer Bi2O2Se | 808 | 6.5 | 999 | 8.3 × 1011 | 2.8 ms | 7 |
Thin-layer Bi2O2Se | 300–1700 | 65 | —— | 3.0 × 109 | 1 ps (intrinsic) | 8 |
Graphene | 1550 | 0.5 × 10−3 | 16 | —— | < 25 ps | 25 |
MoTe2-MoS2 | 550–1550 | 0.046 | —— | —— | 25 s | 26 |
GO-GNR | 1550 | 1 | 80 | —— | 2 s | 27 |
MoS2/b-P | 532–1550 | 22.3 | 5000 | 3.1 × 1011 | 70 μs | 28 |