摘要:
Embodiments of the present invention relate to a solar simulator module of a solar cell production line. In one embodiment the solar simulator receives a solar cell module in a horizontal position and reorients the module into a vertical position. A light source is oriented to emit a flash of light in a substantially horizontal orientation toward the vertically oriented solar cell module. In one embodiment, an automated labeling device affixes a label including the electrical characteristics measured onto a back surface of the solar cell module. In one embodiment, a plurality of solar cell modules are received and tested simultaneously.
摘要:
Embodiments of the present invention relate to a solar simulator module of a solar cell production line. In one embodiment the solar simulator receives a solar cell module in a horizontal position and reorients the module into a vertical position. A light source is oriented to emit a flash of light in a substantially horizontal orientation toward the vertically oriented solar cell module. In one embodiment, an automated labeling device affixes a label including the electrical characteristics measured onto a back surface of the solar cell module. In one embodiment, a plurality of solar cell modules are received and tested simultaneously.
摘要:
A method and apparatus for testing a photovoltaic substrate disposes the substrate on a support gantry with connection points such as vacuum cups. The gantry is actuated into a test position. A probe nest coupled to the gantry connects to a junction box on the substrate. A power supply applies voltage to the junction box, and an actuated frame contacts an edge region of the substrate to detect any breakthrough current. The actuated frame comprises a liner for maximizing contact with the edge of the substrate. The liner may be conductive, or may have a conductive surface. Current sensors coupled to the conductive liner of the frame detect any breakthrough current. A solar spectrum simulator provides solar spectrum radiation for testing the photovoltaic properties of the substrate.
摘要:
A method and apparatus for testing a photovoltaic substrate disposes the substrate on a support gantry with connection points such as vacuum cups. The gantry is actuated into a test position. A probe nest coupled to the gantry connects to a junction box on the substrate. A power supply applies voltage to the junction box, and an actuated frame contacts an edge region of the substrate to detect any breakthrough current. The actuated frame comprises a liner for maximizing contact with the edge of the substrate. The liner may be conductive, or may have a conductive surface. Current sensors coupled to the conductive liner of the frame detect any breakthrough current. A solar spectrum simulator provides solar spectrum radiation for testing the photovoltaic properties of the substrate.
摘要:
A method and apparatus for improving a thin film scribing procedure is presented. Embodiments of the invention include a method and apparatus for determining a scribe setting for removal of an absorber layer of a photovoltaic device that improves contact resistance between a back contact layer and a front contact layer of the device.
摘要:
Methods for making solar cells are described. The methods include selectively etching strips formed by laser scribing to remove oxides formed during laser scribing.
摘要:
Methods for sputter depositing a transparent conductive layer and a conductive contact layer are provided in the present invention. In one embodiment, the method includes forming a transparent conductive layer on a substrate by materials sputtered from a first target disposed in a reactive sputter chamber, and forming a conductive contact layer on the transparent conductive layer by materials sputtered from a second target disposed in the reactive sputter chamber.
摘要:
Embodiments of the present invention generally relate to an automated production line using a common laser scribe module for providing consistent scribe lines in multiple layers during the formation of thin film photovoltaic modules. The common laser scribe module includes a plurality of identical, programmable laser tools configured to emit radiation at a common wavelength. Substrates flowing through the production line are tracked by a system controller, which identifies available laser tools within the common laser scribe module and routes substrates to available tools for scribing features in one or more layers disposed on the substrates. The system controller also sets and controls laser parameters, such as power, pulse frequency, pulse width, and laser pattern, in order to accurately and consistently produce scribed lines in the appropriate material layer of the substrate.
摘要:
A method and apparatus for improving a thin film scribing procedure is presented. Embodiments of the invention include a method and apparatus for determining a scribe setting for removal of an absorber layer of a photovoltaic device that improves contact resistance between a back contact layer and a front contact layer of the device.
摘要:
A method of calibrating a light source used to simulate the sun in solar cell testing apparatus. The method comprises using a control cell to measure the intensity of light from the light source at a first wavelength range as a function of output short circuit current, comparing the measured intensity to a targeted intensity value, optionally adjusting power to the light source until the measured intensity is substantially equal to the targeted intensity value, repeatedly using a calibrated monitoring module to periodically measure monitoring measured values for monitoring module output short circuit current, monitoring module output open circuit voltage and monitoring module quantum efficiency, obtaining average values for monitoring module output short circuit current, monitoring module output open circuit voltage and monitoring module quantum efficiency, comparing the measured values with the average values, and determining if differences in measured values and average values are within an acceptable limit.