Si:HgTe Colloidal Quantum Dots Heterojunction-Based Infrared Photodiode

Figure 6

(a) The structure of the HgTe-CQDs/silicon photodiode is depicted schematically and band diagram of HgTe : Si device; (b) the responsivity of the HgTe-CQDs/silicon photodiode with the silicon of different resistivities; (c) rectification ratio of the HgTe-CQDs/silicon photodiode with the silicon of different resistivities; (d) dark current of the HgTe-CQDs/silicon photodiode with the silicon of different resistivities.

(a)

(b)

(c)

(d)