Wavelength conversion perylene diester chromophores and luminescent films
US9287419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2012 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention is related to novel perylene diester derivatives represented by the general formula (I) or general formula (II) as described herein. The derivatives are useful in various applications, such as luminescent dyes for optical light collection systems, fluorescence-based solar collectors, fluorescence-activated displays, and/or single-molecule spectroscopy. The invention also relates to a luminescent medium, such as a luminescent film, that can significantly enhance the solar harvesting efficiency of thin film CdS/CdTe or CIGS solar cells. The luminescent medium comprises an optically transparent polymer matrix and at least one luminescent dye that comprises a perylene diester derivative. Over 16% of an efficiency enhancement to a CdS/CdTe solar cell and over 12% of an efficiency enhancement to a CIGS solar cell can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.