The optical energy gap of anthocyanin compounds from sea lettuce extract (Ulva lactuca L.) has been calculated using the Tauc plot method. Sea plants taken at Sanur Beach Bali. was dried then mashed and extracted for 24 hours, last being macerated through three cycles. extraction results are evaporated to obtain a thick solution. Extracted evaporated-extraction samples were characterized by UV-...

In this paper, we prepared Titanium Dioxide (TiO2) based dye sensitized solar cells (DSSC). Downscaling of commercial TiO2 powder have been achieved by systematic ball milling carried out using home-made device. Thin films were and samples characterized XRD, SEM, UV-Vis I-V. The main objective work is to prepare (DSSC) N3 study the effect grain size inside photoanode layer on efficiency cell. U...

Two novel organic sensitizers for Dye-Sensitized Solar Cells (DSSC), called TP1 and TP2, based on the electron-poor thieno[3,4-b]pyrazine (TPz) π-bridge electron-rich N,N-bis(4-(hexylthio)phenyl)aniline (TPA) were designed following two different approaches: classical D-A-π-A design a symmetric structure with double anchoring functions. Both compounds prepared exploiting short synthetic pathway...

Dye-sensitized solar cells have shown great potential in low and self-powered nano/micro-scale applications, due to their fabrication costs, semi-transparency the visible spectrum, diffused light harvesting capabilities, lead-free structure. However, DSSC efficiencies are still relatively limited absorption capabilities active mesoporous layer. The current study demonstrates an attempt boost ov...

Several methods for fabricating a dye sensitized solar cell (DSSC) are introduced for enhancing its photo-chacracterisitics 1 , 2 . The novel method, nano-particle deposition system (NPDS), suggests one of the outstanding ways to be applied in DSSC. NPDS is a novel method to deposit ceramic and metallic powders on substrate at room temperature, by accelelating particles up to supersonic veloc...

A series of quinoidal thiophene based dye molecules were designed and their optoelectronic properties were studied for dye sensitized solar cell (DSSC) applications. The efficiency of the designed dye molecules was analyzed using various parameters such as the HOMO-LUMO energy gap, absorption spectra, light harvesting efficiency (LHE), exciton biding energy (Eb) and free energy change for elect...

Intermolecular interactions in cyclometalated Ru complex dye (FT89) dimers, carbazole organic dye (MK-45 and MK-111) dimers, FT89-MK-45 complexes, and FT89-MK-111 complexes were investigated using density functional theory (DFT) and time-dependent DFT (TD-DFT) to elucidate the improvement mechanism of dye-sensitized solar cell (DSSC) performance due to cosensitization with FT89 and MK dyes. All...

This paper reports a rapid and in-situ electrochemical polymerization method for the fabrication of polypyrrole nanoparticles incorporated reduced graphene oxide (rGO@PPy) nanocomposites on a ITO conducting glass and its application as a counter electrode for platinum-free dye-sensitized solar cell (DSSC). The scanning electron microscopic images show the uniform distribution of PPy nanoparticl...