Suppressing dark current for high-detectivity perovskite photodetectors via defect passivation

Uncooled Broadband Photodetection via Light Trapping in Conformal PtTe2–Silicon Nanopillar Heterostructures

“…This, in turn, compromises the noise performance of the device. The implementation of surface passivation techniques , is anticipated to alleviate the dark current in the device, leading to an improved device performance.…”

Boosting the fill factor and open-circuit voltage of carbon-based perovskite solar cells with a graphene co-doped P3HT/NiOx hole-transporting bilayer

“…3(e), it is clear that the bare perovskite film exhibits a strong PL emission with a sharp peak at B795 nm, which is consistent with other reports. 48,49 Significant PL quenching is observed in samples with bilayer HTLs of P3HT/NiO x and G-P3HT/G-NiO x . In comparison, PL quenching is more pronounced in the perovskite/G-P3HT/G-NiO x sample, indicating that the G-P3HT/G-NiO x bilayer HTLs exhibit stronger hole extraction and transport ability than the undoped P3HT/NiO x .…”

Facile Vertical Structure Broadband Photodetectors Enabled by Polyvinylpyrrolidone-Regulated Perovskite and Near-Infrared-Sensitive Lead Phthalocyanine

“…In order to quantitatively evaluate the photosensitive performance of the experimental device, we determined the photosensitive performance parameters R , P max , EQE , and D * from Figures and S6, as shown in Figure . Figure a shows that in the (N)UV–Vis to NIR spectral range, the photoresponsivity exceeds 10 A/W, which is comparable to or exceeds that of similar types of devices. − Moreover, from 405 to 850 nm, the photoresponsivity under weak light is relatively balanced, which indicates the balanced contribution of MAPbI 3 and PbPc to the spectral response. For broadband photodetectors, uniform photoresponsivity for all wavelengths is desired within the detection spectral window.…”