Recent Progress in Perovskite Solar Cell: Fabrication, Efficiency, and Stability.- State-of-the-Art of Solution-Processed Crystalline Silicon/Organic Heterojunction Solar Cells: Challenges and Future.- Structure, Electronic and Charge Transfer Properties of Organic Photovoltaics from Density Functional Theory Methods.- Dye-Sensitized Solar Cells: A Brief Historical Perspective and Uses in Multijunction Devices.- Delving Charge-Transfer Excitations in Hybrid Organic-Inorganic Heterojunction of Dye-Sensitized Solar Cell: Assessment of Excitonic Optical Properties Using the GW and Bethe-Salpeter Green's Function Formalisms.- Promising DSSCs involving organic D-pi-A and similar structures for n- and p- type semiconductors - A Theoretical Approach.- Application of QSPR Modeling in Designing and Prediction of Power- Conversion Efficient Solar Cell.- Computational Screening of Organic Dye-sensitizers for Dye-sensitized Solar Cells: DFT/TDFT Approach.- Chemometric modeling of absorption maxima of carbazole dyes used in dye-sensitized solar cells.