The present invention relates to a light absorption layer that makes it possible to perform photoelectric conversion in both the visible light region and the near-infrared light region and that is for forming a photoelectric conversion element and a solar cell having high conversion efficiency. The present invention also relates to a photoelectric conversion element and a solar cell comprising the light absorption layer. This light absorption layer comprises a perovskite compound and quantum dots containing a halogen element and an organic ligand. The molar ratio of the organic ligand with respect to the metal element constituting the quantum dot is 0.01 or more and 0.4 or less.

The present invention features a solar-to-electric energy conversion device based on a light absorbing electrode coupled to a one-dimensional nanoparticle based photonic crystal. The function of the latter is to localize the incident light within the electrode thus enhancing the optical absorption and the power conversion efficiency of the so called dye-sensitized and organic (polymer based or hybrids) cell. The photonic crystal comprises alternating layers possessing different index of refraction and can be easily integrated into the cell.

Provided is a solar cell including: a first electrode; a composite layer positioned on the first electrode and including a light absorber impregnated thereinto; a light absorption structure positioned on the composite layer and composed of a light absorber; a hole conductive layer positioned on the light absorption structure; and a second electrode positioned on the hole conductive layer.

A solar cell module (100) includes: one or more cells that are enclosed by a barrier packaging material (13A, 13B) and that include first and second base plates (3, 7) and a functional layer; and first and second lead-out electrodes (11A, 11B) that are respectively connected to electrodes (2, 6) disposed at the sides of the respective base plates (3, 7) via first and second electrical connectors (12A, 12B). The lead-out electrodes (11A, 11B) each include a conductor. The barrier packaging material (13A, 13B) includes at least one seal (14) that extends either or both of the lead-out electrodes (11A, 11B) from the solar cell module (100). Gaps between the conductors of the lead-out electrodes (11A, 11B) and the barrier packaging material (13A, 13B) at the at least one seal (14) are filled by a cured product of a crosslinkable adhesive composition (15).

The invention discloses a perovskite solar cell and a method of fabrication thereof. The perovskite solar cell sequentially comprises a transparent electrode, a mesoporous P-I-N framework and a counter electrode from the bottom to top; the mesoporous P-I-N framework is composed of an n-type semiconductor layer, an insulating layer, and a p-type semiconductor layer in a sequentially stacked mode, and the n-type semiconductor layer, the insulating layer and the p-type semiconductor layer all comprise mesopores filled with a perovskite material. The preparation method sequentially includes preparing the mesoporous P-I-N framework on a transparent conductive substrate through a spin-coating method or a screen printing method, filling with the perovskite material and preparing the counter electrode layer.

Double groove diffraction gratings are used in combination with various types of photoelectrodes including dye-sensitized and organic photoelectrodes to increase absorption efficiency as well as to provide one or more of a variety of functions including transparency and reflectivity.

An energy storage device comprising a substrate comprising a series of grooves. Each groove having a first and a second face. Wherein there is a capacitor material in each groove of the series of grooves.

An energy storage device comprising a substrate comprising a groove having a first and a second face. A capacitor material in the groove. The first and the second face of the groove having a coat of metal. Wherein the coat of metal on the first face is not in electrical contact with the coat of metal on the second face.

The present disclosure relates to a photovoltaic (PV) device that includes a color-conversion layer that includes at least one of a color-tuning layer and/or an intermediate layer and a photovoltaic layer where the color-conversion layer changes the appearance of the PV device when compared to a similar PV device constructed without the color-conversion layer, the color-conversion layer increases a power output of the PV device by at least one of reflecting light to the PV layer or emitting light which is redirected to the PV layer, and the device is at least partially transparent to light in the visible spectrum.

A three-tandem (3T) perovskite/silicon (PVT)-based tandem solar cell (TSC) includes an antireflection coating (ARC), a first transparent conductive oxide layer (TCO), a hole transport layer (HTL), a perovskite (PVT) layer, a second transparent conductive oxide layer (TCO), an electron transport layer (ETL), a plurality of buried contacts, a p-type Si layer, a p-type wafer-based homo-junction silicon solar cell, a n+ silicon layer, a back contact layer. The solar cell further includes a top sub-cell, a bottom sub-cell and a middle contact-based tandem. The top sub-cell includes the PVT layer. The bottom sub-cell includes the silicon solar cell. The middle contact-based tandem includes the second TCO layer to be used as the middle contact-based tandem, as well as a recombination layer for current collection. Further, a conduction and a valence band edge are employed at a front surface of the ETL.