A method for concentrated photovoltaic-thermal power generation includes converting a first portion of concentrated sunlight into electrical power when the first portion of concentrated sunlight illuminates an array of photovoltaic cells; and thermally coupling heat generated by the photovoltaic cells into a heat transfer plate. The method also includes cooling the heat transfer plate by flowing heat transfer fluid through an internal path of a cooling block in direct thermal contact with the heat transfer plate; and flowing the heat transfer fluid through a helical tube to absorb thermal energy from a second portion of concentrated sunlight illuminating the helical tube.

Disclosed is a method for manufacturing solar cell. The method includes: providing a solar cell substrate; forming a first initial electrode on the solar cell substrate; and controlling a laser to perform a continuous moving irradiation on the solar cell substrate, and performing a laser-assisted sintering treatment on the first initial electrode to form a first electrode and obtain the solar cell. The number of times the laser is controlled to perform the continuous moving irradiation on the solar cell substrate is at least once. There is a target irradiation process among all continuous moving irradiation processes, in which a moving direction of the laser and a longitudinal extension direction of the first electrode intersect with each other and are perpendicular to a thickness direction of the solar cell substrate.

Disclosed is a method for manufacturing solar cell. The method includes: providing a solar cell substrate; forming a first initial electrode on the solar cell substrate; and controlling a laser to perform a continuous moving irradiation on the solar cell substrate, and performing a laser-assisted sintering treatment on the first initial electrode to form a first electrode and obtain the solar cell. The number of times the laser is controlled to perform the continuous moving irradiation on the solar cell substrate is at least once. There is a target irradiation process among all continuous moving irradiation processes, in which a moving direction of the laser and a longitudinal extension direction of the first electrode intersect with each other and are perpendicular to a thickness direction of the solar cell substrate.

The provided is a preparation method of electrode grid lines and a photovoltaic (PV) cell. The preparation method of electrode grid lines includes: S1: providing a substrate, and forming a polymer layer on the substrate; S2: imprinting a first trench on the polymer layer with a first mold, applying first conductive paste onto the polymer layer, such that the first conductive paste fully fills the first trench, and scraping off excess first conductive paste; S3: providing a base material, covering the base material with the polymer layer, and transfer-printing the polymer layer and the first conductive paste onto the base material at a certain temperature and a certain pressure; S4: peeling off the substrate from the polymer layer, and dissolving the polymer layer, leaving the first conductive paste adhered to the base material; and S5: solidifying or sintering the first conductive paste, and forming electrode grid lines.

The provided is a preparation method of electrode grid lines and a photovoltaic (PV) cell. The preparation method of electrode grid lines includes: S1: providing a substrate, and forming a polymer layer on the substrate; S2: imprinting a first trench on the polymer layer with a first mold, applying first conductive paste onto the polymer layer, such that the first conductive paste fully fills the first trench, and scraping off excess first conductive paste; S3: providing a base material, covering the base material with the polymer layer, and transfer-printing the polymer layer and the first conductive paste onto the base material at a certain temperature and a certain pressure; S4: peeling off the substrate from the polymer layer, and dissolving the polymer layer, leaving the first conductive paste adhered to the base material; and S5: solidifying or sintering the first conductive paste, and forming electrode grid lines.

An emission enhancement structure having at least one energy augmentation structure; and an energy converter capable of receiving energy from an energy source, converting the energy and emitting therefrom a light of a different energy than the received energy. The energy converter is disposed in a vicinity of the at least one energy augmentation structure such that the emitted light is emitted with an intensity larger than if the converter were remote from the at least one energy augmentation structure. Also described are various uses for the energy emitters, energy augmentation structures and energy collectors in a wide array of fields, especially in the field of solar cells and other energy conversion devices.

An emission enhancement structure having at least one energy augmentation structure; and an energy converter capable of receiving energy from an energy source, converting the energy and emitting therefrom a light of a different energy than the received energy. The energy converter is disposed in a vicinity of the at least one energy augmentation structure such that the emitted light is emitted with an intensity larger than if the converter were remote from the at least one energy augmentation structure. Also described are various uses for the energy emitters, energy augmentation structures and energy collectors in a wide array of fields, especially in the field of solar cells and other energy conversion devices.