Abstract: Techniques and systems are described that enable multiple current source prioritization with overvoltage protection.

Abstract: Techniques and systems are described that enable multiple current source prioritization with overvoltage protection.

Abstract: Techniques and systems are described that enable multiple current source prioritization with overvoltage protection.

Abstract: Disclosed are flexible photovoltaic modules that have photovoltaic cells electrically connected to each other and positioned in a sealed space between flexible top and bottom sheets and that includes a first region at a first end of the module, a second region at a second end of the module, and a central region interposed between the first and second regions that encompasses at least 75% of the cells, and a bus bar with interlaced copper strands, an external insulation, a length of at least 1 meter and a thickness of about 0.5 millimeters or less, a conductivity that can conduct at least 3.0 amps of current, that extends substantially the length of the module, is positioned in the first region, the central region, and the second region, and is electrically connected, in the first region, to a second external electrical connector, and, in the second region, to the cells.

Abstract: Techniques and systems are described that enable multiple current source prioritization with overvoltage protection.

Abstract: Provided herein are improved methods of laser scribing photovoltaic structures to form monolithically integrated photovoltaic modules. The methods involve forming P1, P2 or P3 scribes by an ablative scribing mechanism having low melting, and in certain embodiments, substantially no melting. In certain embodiments, the methods involve generating an ablation shockwave at an interface of the film to be removed and the underlying layer. The film is then removed by mechanical shock. According to various embodiments, the ablation shockwave is generated by using a laser beam having a wavelength providing an optical penetration depth on the order of the film thickness and a minimum threshold intensity. In some embodiments, photovoltaic materials can be scribed using picosecond pulse widths and certain wavelength and laser fluence levels.

Abstract: Provided herein are improved methods of laser scribing photovoltaic structures to form monolithically integrated photovoltaic modules. The methods involve forming P1, P2 or P3 scribes by an ablative scribing mechanism having low melting, and in certain embodiments, substantially no melting. In certain embodiments, the methods involve generating an ablation shockwave at an interface of the film to be removed and the underlying layer. The film is then removed by mechanical shock. According to various embodiments, the ablation shockwave is generated by using a laser beam having a wavelength providing an optical penetration depth on the order of the film thickness and a minimum threshold intensity. In one embodiment, material including an absorber layer is scribed using an infrared laser source and a picosecond pulse width.