Surface plasmonic resonance induced near-field vectors and their contribution to quantum dot infrared photodetector enhancement

Multi-band visible photoresponse study of Co2+ doped ZnO nanoparticles

“…Merging with other functionalities or technologies like plasmonic enhancement, self-powering, portable PDs which stands on exible electronics the performance of these detectors can be still improved. 49,50,[52][53][54][55][56][57][58] Fig. 14 shows the efficiency of fabricated PDs at different wavelengths.…”

Surface Plasmonics and Its Applications in Infrared Sensing

“…λ ¼ 7:6 µm), the E-fields are strongly confined near the surface. Such strong surface confinement of plasmonic waves enables high absorption using a thin absorption layer and thus leads to significant enhancement in quantum dot infrared photodetectors (QDIPs) [8,[10][11][12][13]15]. In the following sections, we will first give a brief introduction of QDIPs, followed by the description of surface plasmonic enhancement in QDIPs.…”

“…The QDIP technology offers a promising technology in MWIR and LWIR photodetection due to the advantages provided by the three-dimensional (3D) quantum confinement of carriers-including intrinsic sensitivity to normal incident radiation [13], high photoconductive (PC) gain, high quantum efficiency [15] and photoresponsivity [16]. The normal incidence detection capability greatly simplifies the fabrication complexity for a large format (1K · 1K) FPA.…”

“…In addition to SERS, the SPR enhancement technology also provides a promising technique to concentrate EM energy on surface area and thus enables high quantum efficiency with a thin active absorption layer in a photodetector. Significant performance enhancements in a quantum dot infrared photodetector (QDIP) have been reported [8][9][10][11][12][13][14][15].…”

Aggregation-enhanced photocatalytic H2 evolution activity of photosensitizing cadmium selenide quantum dots and platinum colloidal catalysts

“…Quantum dots (QDs) have attracted much attention because their band-gap energy may be controlled by the tailoring of their particle size (quantum confinement effect) [12][13][14][15][16][17]. By taking advantage of this characteristic, QDs have been extensively studied for solar cell [18,19], photodetector [20,21], luminescence diode [22,23], and photosensitizer [24][25][26][27][28][29][30][31][32][33][34][35] applications.…”