Tandem Photovoltaic Module Comprising a Control Circuit

摘要

A solar-cell module comprising a tandem solar cell and a controller that substantially optimizes the power output the tandem solar cell is disclosed. The tandem solar cell includes a first solar cell having a first energy bandgap and a second solar cell having a second energy bandgap, where the first and second solar cells are arranged such that light not absorbed by the first solar cell passes through it to the second solar cell to be absorbed. The controller controls an electrical parameter, such as current or voltage, of at least one of the first and second solar cells such that the electrical parameter is equal in both cells, thereby substantially optimizing the output power of the tandem solar cell.

主权项

1. A solar-cell module comprising:
a first solar cell having a first energy bandgap; a second solar cell having a second energy bandgap, the second solar cell being electrically coupled with the first solar cell; and a controller that is operably coupled with the first solar cell and the second solar cell such that the controller is operative for controlling an electrical parameter of at least one of the first solar cell and the second solar cell, the electrical parameter being at least one of current, voltage, and power; wherein the first solar cell and second solar cell are arranged such that (1) the first solar cell is operative for absorbing a first portion of a first light signal and passing a second portion of the first light signal to the second solar cell and (2) the second solar cell is operative for absorbing the second portion of the first light signal.