Buscar
Mostrando ítems 1-8 de 8
Crystalline Clear or Not: Beneficial and Harmful Effects of Water in Perovskite Solar Cells
(Wiley, 2019-10-16)
Clarification of how water affects the photovoltaic performance of perovskite solar cells is one of the major challenges to successfully develop a large‐scale low‐cost fabrication process. Many authors have reported ...
An Equivalent Circuit for Perovskite Solar Cell Bridging Sensitized to Thin Film Architectures
(Elsevier, 2019-08-15)
Fundamental working mechanisms of perovskite solar cells (PSCs) remain an elusive topic of research. Impedance spectroscopy (IS) has been key to characterizing photovoltaic devices; however, its application to PSCs has ...
Single-Exciton Amplified Spontaneous Emission in Thin Films of CsPbX3 (X = Br, I) Perovskite Nanocrystals
(American Chemical Society, 2019-09-23)
CsPbX3 perovskite nanocrystals (PNCs) have emerged as an excellent material for stimulated emission purposes, with even more prospective applications than conventional colloidal quantum dots. However, a better understanding ...
Utilization of Temperature-Sweeping Capacitive Techniques to Evaluate Band Gap Defect Densities in Photovoltaic Perovskites
(American Chemical Society, 2019-06-12)
Capacitive techniques, routinely used for solar cell parameter extraction, probe the voltage-modulation of the depletion layer capacitance isothermally as well as under varying temperature. In addition, defect states within ...
PbS quantum dots as additives in methylammonium halide perovskite solar cells: the effect of quantum dot capping
(Royal Society of Chemistry, 2019-09)
Colloidal PbS quantum dots (QDs) have been successfully employed as additives in halide perovskite solar cells (PSCs) acting as nucleation centers in the perovskite crystallization process. For this strategy, the surface ...
Welcoming the First Decade of Perovskite Solar Cells
(Wiley, 2019-09-02)
The swift emergence of perovskite solar cells (PSCs) is a “miracle” development in the history of photovoltaics. Since Miyasaka and co‐workers (Toin University of Yokohama, Japan) reported the first use of halide perovskites ...
Tailoring Crystal Structure of FA0.83Cs0.17PbI3 Perovskite Through Guanidinium Doping for Enhanced Performance and Tunable Hysteresis of Planar Perovskite Solar Cells
(Wiley, 2019)
Current-voltage hysteresis of perovskite solar cells (PSCs) has raised the concern of accurate performance measurement in practice. Although various theories have been proposed to elucidate this phenomenon, the origin of ...
Perovskite Solar Cell Modeling Using Light- and Voltage-Modulated Techniques
(American Chemical Society, 2019-02-27)
The analysis of the impedance spectroscopy (IS) data of perovskite solar cells (PSCs) has been challenging so far, with the low-frequency phenomena in particular yielding ambivalent results and interpretations. We tackle ...