Wavelength conversion material as encapsulate for solar module systems to enhance solar harvesting efficiency

摘要

This invention relates to an encapsulation structure comprising a luminescent wavelength conversion material for at least one solar cell or photovoltaic device which acts to enhance the solar harvesting efficiency of the solar cell device. The luminescent wavelength conversion material comprises at least one chromophore and an optically transparent polymer matrix. Application of the encapsulation structure, as disclosed herein, to solar harvesting devices, including solar cells, solar panels, and photovoltaic devices, improves the solar harvesting efficiency of the device by widening the spectrum of incoming sunlight that can be effectively converted into electricity by the device.

主权项

1. An encapsulation structure for a solar energy conversion device comprising:
a luminescent wavelength conversion material comprising at least one chromophore and an optically transparent polymer matrix; wherein the at least one chromophore is represented by formula (I-a) i is an integer in the range of 0 to 100; A0 and Ai are each independently selected from the group consisting of optionally substituted alkyl, optionally substituted alkenyl, optionally substituted heteroalkyl, optionally substituted heteroaryl, optionally substituted amino, optionally substituted amido, optionally substituted cyclic amido, optionally substituted cyclic imido, optionally substituted alkoxy, optionally substituted carboxy, and optionally substituted carbonyl; D1 and D2 are each independently selected from the group consisting of hydrogen, optionally substituted alkoxy, optionally substituted aryloxy, optionally substituted acyloxy, optionally substituted alkyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted amino, amido, cyclic amido, and cyclic imido, provided that D1 and D2 are not both hydrogen; Li is independently selected from the group consisting of optionally substituted alkylene, optionally substituted alkenylene, optionally substituted alkynylene, optionally substituted arylene, and optionally substituted heteroarylene; and wherein the luminescent wavelength conversion material is configured to encapsulate the solar energy conversion device and inhibit penetration of moisture and oxygen into the solar energy conversion device.