Solar Energy Materials and Solar Cells

All local minima upon the liquidus surface for multicomponent Chloride systems.

(a) Steady-state PL spectrum and (b) time-resolved PL spectra of OSS and TSS perovskite films. (c) Dark J-V characteristics of the electron-only devices based on OSS and TSS perovskite films with inserted structure. (d) Voc versus various light intensities (from 100 mW cm-2 to 10 mW cm-2) plots of OSS and TSS devices.

Figure file for AuTiO2Au gap-plasmon structure

J-V curves, transmission, absorption, PL of HTLs, electrochemical analysis, UPS spectra

UV-curves of OPV modules before and after incapsulation OPV stabilty test summary files (PCE, Voc, Isc, FF vs time)

they are the origin J-V curve

The database of the central result graph Fig. 4a) is covered by Reaserch_data_figure4a.

all 8 figures for Influence of temperature gradient at interface on defect propagation in seed-assisted multicrystalline silicon

One of the most promising approaches to produce industrial compatible Transparent Conducting Materials (TCMs) with excellent characteristics is the fabrication of TCO/metal/TCO multilayers. In this article, we report on the electro-optical properties of a novel high-performing TCO/metal/TCO structure in which the intra-layer is a micro-structured metallic grid instead of a continuous thin film. The grid is obtained by evaporation of Ag through a mask of polystyrene colloidal micro-spheres deposited by the Langmuir-Blodgett method and partially dry-etched in plasma. IZO/Ag grid/IZO structures with different thicknesses and mesh dimensions have been fabricated, exhibiting excellent electrical characteristics (sheet resistance below 10 Ω/□) and particularly high optical transmittance in the near-infrared spectral region as compared to planar (unstructured) TCM multilayers. Numerical simulations were also used to highlight the role of the Ag mesh parameters on the electrical properties.

Metadata and Dataset Description Effects of soiling and weathering on the albedo of building envelope materials: lessons learned from natural exposure in two European cities and tuning of a laboratory simulation practice Riccardo Paolini*, Giancarlo Terraneo, Chiara Ferrari, Mohamad Sleiman, Alberto Muscio, Pierangelo Metrangolo, Tiziana Poli, Hugo Destaillats, Michele Zinzi, Ronnen Levinson Full description in the file Abstract Chemical and physical stress, weathering, organic and inorganic matter deposition, and microbial growth over time, or “aging”, affect the optical-radiative performance of building envelope materials. Natural exposure helps to quantify these effects, but it usually requires several years. Further, the contribution of the different degradation agents cannot be isolated, and results from different campaigns cannot be easily compared because of the variability in the boundary conditions producing aging. Here we present an adaptation of the protocol implemented by ASTM as D7897-18 “Standard Practice for Laboratory Soiling and Weathering of Roofing Materials to Simulate Effects of Natural Exposure on Solar Reflectance and Thermal Emittance”. The aim is to reproduce in the laboratory the changes in albedo (solar reflectance) and thermal emittance experienced by building envelope materials in European urban areas rather than in the United States. We tuned the spraying duration and weathering cycles, and we compared the UV-vis-NIR reflectances of naturally-aged specimens (48 months in Rome and Milan) of roofing and wall finish materials to those exposed to laboratory weathering and soiling. Excluding those materials that show early physical-chemical degradation, the mean absolute deviation between natural and laboratory exposure of roofing products is equal to 0.027 in albedo. This is a lower value than the differences between two natural exposure campaigns at the same site. We clearly defined the limits of application of the protocol, providing an appraisal of the repeatability of natural aging. Moreover, we identified possible improvements in the methodology to conduct both natural and laboratory exposure.