Session Index

In this work, we doped Br in our perovskite photovoltaic devices to tune the band gap. As the band gap was slightly increased, our perovskite photovoltaic devices had higher PCEs under indoor light illumination. The best indoor light PCE in our work can reach 26.38% under TL5 illumination condition.

 

Novel photovoltaic devices are designed using perovskite nanowires as the active material and tungsten trioxide (WO3) nanoparticles layer as the electron transport layer. The morphological and optical investigation of perovskite nanowires are described. To improve electron extraction, Cs2CO3/PCBM buffer bilayer will be introduced between perovskite and WO3 layers.

 

In this work, MA0.85Cs0.15PbI3 were used for the perovskite solar cell's active layer. After the incorporation of copper nanoparticles (CuNPs) between the anode buffer layer and active layer, the energy conversion efficiency could reach 12.73%, which were improved by 10.03%, comparing with the reference devices without copper nanoparticles.

 

This study demonstrated the new-type dye materials served as absorption layer to improve their performance in dye-sensitized solar cells. It explored the photoelectric conversion efficiency and optical properties in the new-type dye materials. The results showed that improvement of new dyes are getting better and better in conversion efficiency.

 

Four organic solvents including 1,2-dichlorobenzene (DCB), chlorobenzene (CB), methylbenzene (MB), and chloroform (CF) were used as solvents in the [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) electron transport layer (ETL) of perovskite solar cells (PSCs). The effects of various solvents on the PCBM electron transport layer of perovskite solar cells were investigated.

 

Different ratios of 1,8-Diiodooctane (DIO) were added in the perovskite layer of perovskite solar cells (PSCs). The results showed that adding DIO to the perovskite layer can reduce the nucleation rate of the perovskite through coordination, thereby enhancing the crystallinity, uniformity, and coverage of the perovskite layer.

 

Nickel oxide (NiO) nanoparticles were added to a titanium oxide (TiO2) nanoparticle solution to fabricate a dye-sensitized solar cell (DSSC) working electrode through a screen-printing method. The effects of the NiO proportion in the TiO2 solution on the TiO2 working electrode, DSSC devices, and electron transport were investigated.

 

The photovoltaic performances of ZnO-based dye-sensitized solar cells were studied using ZnO nanorods which were prepared via aqueous solution method at different growth time. These samples were characterized by FE-SEM, UV-Vis-NIR and solar simulator measurements to confirm the structural and optical properties by the nanorod growth time.

 

Reduced graphene oxide/macrocyclic ytterbium complex nanocomposites were used as counter electrode (CE) materials in DSSCs; the surface morphology of films, composition of structural elements, and their effects on DSSC efficiency were discussed. The results showed that the GO/Yb composite catalysts can replace Pt as a CE material for DSSCs.

 

A low-cost method through photolithography using i-line stepper and MacEtch to carefully tune the process conditions, near perfectly ordered Si nanostructure arrays of user-defined patterns have been demonstrated. Mixing different kinds of oxidants and retaining the photoresist during etching, we could successfully fabricate nanopencil structure in one step.

 

In this study, we have developed an etch back technology, which can be used to simultaneously fabricate selective emitter (SE) and selective back surface field (SBSF) patterns for Si solar cells. Compared to the full Al-BSF reference cell, the selective bifacial solar cell shows an improvement in the efficiency 0.67%.

 

Two types of sulfurization temperature profiles were compared. It was found that the elements of CZTS thin films sulfurized by a staying of 350°C for 20 min were uniform distribution and less binary phase formation. However, the elements of CZTS thin films without staying at 350°C were non-uniform distribution.

 

In this work, we report a small molecular organic photodetector with non-fullerene NIR material as active layer evaporated from quartz and metal crucible at different evaporation rate. The optimized photodetector achieves the external quantum efficiency (EQE) of 35 % at the wavelength of 760 nm under 3 V bias.

 

Our study used UAV and thermal imaging cameras to detect various PV modules. When the PV module is partially damaged, the temperature of the damage area will be increased. We examined the relationship between MTD (mean temperature difference), damaged area and efficiency by using the phenomenon of thermal effect.

 

In this experiment, the independent solar tracking system without extra power, storing electricity in the battery to make the system working for twenty-four hours, that can make up for the instability of renewable energy generation; It converted into hydrogen for application. That is, the micro-grid practices the Power-to-gas conception.

 

Three different color inorganic phosphor films for luminescent solar concentrator (LSC) are proposed in this study. Comparing the stacking method with the single-layer diaphragm, the characteristics of the inorganic phosphor films for LSC were discussed.

 

Using fluorescence spectrometer to measure the intensity of red phosphor film at different concentrations, and mathematically estimate the efficiency of the red phosphor of luminescent solar concentrator (LSC), and exploring whether the measured value of the inorganic phosphor film for LSC is in agreement with the estimated trend.