Triple-junction tandem solar cell based on multi-pyrrole conjugate macrocycle

Abstract

The invention provides a triple-junction tandem solar cell based on a multi-pyrrole conjugate macrocycle. The forward structure of the triple-junction tandem solar cell sequentially comprises a transparent glass substrate I, a transparent front electrode I, a hole transport layer I, a first active layer I, a first intermediate layer I, a second active layer I, a second intermediate layer I, a third active layer I, an electron transport layer I and a back electrode I; an inverted structure of the triple-junction tandem solar cell sequentially comprises a transparent glass substrate II, a transparent front electrode II, an electron transport layer II, a first active layer II, a first intermediate layer II, a second active layer II, a second intermediate layer II, a third active layer II, a hole transport layer II and a back electrode II, and sunlight shoots from one side of each transparent glass substrate, firstly penetrates through the substrates and the transparent front electrodes, is absorbed by light absorption materials of all cell units sequentially and reaches the back electrodes finally. The active layer materials adopt conjugate macrocyclic compounds utilizing pyrrolyl as a framework, and the tandem cell has the numerous advantages of applicability of popularization and industrialized mass production.

Description

technical field [0001] The present invention relates to a solar cell device, in particular to a triple-junction stacked solar cell based on a conjugated macrocycle light-absorbing active layer that has strong absorption in each wavelength band of visible light, and its light-absorbing active layer adopts a polypyrrole conjugated macrocycle Therefore, it has the advantages of abundant raw material sources, low price, non-toxic, harmless and pollution-free, stable properties, and can be applied to various battery processing techniques. Background technique [0002] With the depletion of fossil energy and a series of social and environmental problems caused by its extensive use, the development and utilization of renewable clean energy has become an urgent topic to be explored. Solar photovoltaic power generation technology and products have been growing rapidly around the world, becoming the most potential clean energy. [0003] How to efficiently absorb sunlight energy in va...

AI Technical Summary

Problems solved by technology

The cadmium telluride used in the above two utility models is a highly toxic substance, while the price of silicon-based materials used is relatively high

In addition, there are other utility models and inventions of tandem solar cells that have been authorized, but these are more concerned with improving photoelectric conversion efficiency, without paying enough attention to other factors such as cost or environmental protection

In addition, so far, there is no report on the stacking of solar cell units using conjugated macrocyclic active layers.

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