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In this paper, we have demonstrated an efficient perovskite light-emitting device (PeLED) by improving perovskite crystallization. The improved perovskite crystallization has been achieved by pretreating the underneath poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) layer with N, N-dimethylformamide (DMF) solvent before single-step spin-coating the perovskite, which results...
Surface morphology of perovskite film is critical for highly efficient perovskite-based solar cells. The solution processed perovskite films tend to have voids and pin-holes between the crystals, which has been cited as very detrimental to device performance. The voids and pin-holes not only cause electrical shorting but deleteriously impact charge dissociation/transport/recombination because of the...
In this study, we adopt polyaniline (PANI) as hole transport layer (HTL) in polymer light emitting diode. The devices exhibited a maximum luminance of 32200 cd/m2 and a maximum current efficiency of 2.62cd/A, respectivily.
Mesoporus silica dielectrics, which revealed low refractive index (n~1.26), were introduced together with Si3N4 layers to be double-layer-based graded-refractive-index anti- reflectors for silicon solar-cells. Enhanced solar-light transmission increased conversion efficiency of Si solar panels by 4%. The degradation in photovoltaic efficiency of solar panels that were covered with Si3N4/MS anti-reflectors...
Mesoporus silica dielectrics, which revealed low refractive index (n~1.26), were introduced together with Si3N4 layers to be double-layer-based graded-refractive-index ant-reflectors for silicon solar-cells. Enhanced solar-light transmission increased conversion efficiency of Si solar panels by 4%.
This paper presents a novel approach to automatically identify characters in films using audio visual cues and text analysis. The approach consists of three stages: (i) frontal face track detection and clustering, (ii) face track classification, (iii) name assignment. A finite state machine (FSM) method is utilized to filter faces detected on each frame and build face tracks. The face tracks are clustered...
Ultraviolet light was detected by MOS devices with silicon nanocrystals-embedded mesoporous silica sensing layers. The detector reveals high photoresponse of 2.0 (0.3) A/W at wavelength 370 (275) nm, and is blind to green light.
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