Tellurium (Te) nanostructures have been successfully synthesized via a simple hydrothermal methodfrom the reaction of a TeCl4 aqueous solution with thioglycolic acid (TGA) as a reductant. TGA can be easily oxidized to the corresponding disulfide [SCH2CO2H]2, which in turn can reduce TeCl4 to Te. The obtained Te was characterized by XRD, SEM, EDS, and DRS. The effect of reducing agent on morphol...

Two organic compounds (SC-23=(E)-2-Cyano-3-(2,3-dimethoxyphenyl) acrylic acid and SC-25=(E)-2-Cyano-3-(2,5-dimethoxyphenyl) acrylic acid) involving methoxy groups as the electron donor and cyanoacrylic acid group as the electron acceptor have been investigated for dye sensitized solar cells. They shows a short-circuit current density (Jsc) of 2.08 and 1.81 mA cm-2, an open circuit voltage (Voc)...

In this paper, we report a method to increase the open-circuit voltage VOC of an organic solar cell by inserting an interfacial layer between the donor and acceptor layers to form a cascade-type energy band structure. We demonstrate its feasibility using a recently reported asymmetric pentacene derivative, tetraceno 2,3-b thiophene TT as a donor material, C60 as an acceptor material, and copper...

tellurium (te) nanostructures have been successfully synthesized via a simple hydrothermal methodfrom the reaction of a tecl4 aqueous solution with thioglycolic acid (tga) as a reductant. tga can be easily oxidized to the corresponding disulfide [sch2co2h]2, which in turn can reduce tecl4 to te. the obtained te was characterized by xrd, sem, eds, and drs. the effect of reducing agent on morphol...

Two new metal-free organic dyes in D-π-A structure, containing a quinoline π-bridge and malononitrile (4a) cyanoacrylic acid (4b) as acceptors, were synthesized for the first time to apply dye-sensitized solar cell (DSSC). The structures of these compounds elucidated by FT-IR, 1H NMR, 13C NMR techniques. photophysical photovoltaic properties obtained investigated compared current density–voltag...

The power conversion efficiency (PCE) of an Ag/spiro-OMeTAD/CH3NH3PbI3 (MAPbI3)/PCBM/mesoporous TiO2/compact TiO2/FTO planar solar cell with different annealing temperatures PbI2 and MAPbI3 films was investigated in this study. morphology control a thin film plays key roles high-efficiency perovskite cells. were prepared by using thermal vacuum evaporation technology, the synthesized two-step s...

The Texas Instruments bq2403x family of linear charge regulators were originally designed to charge single-cell Li-ion batteries from an AC adapter or USB port. However, these ICs also lend themselves well to applications powered by solar panels. Solar cells basically comprise a p-n junction in which incident light energy (photons) causes electrons and holes to recombine, generating an electric...

We report the use of a phenylalkyl side chain modified donor molecule to increase the open-circuit voltage (Voc) of an organic photovoltaic device. The bulky side chain is able to alter the donor/acceptor interface without interfering in the molecular packing. As a result, both Voc and device performance are improved.