Near-infrared harvesting transparent luminescent solar concentrators with engineered stokes shift

US12247126B2 · kind B2 · utility

Assignee

• BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY · US

Inventors

• Richard R. Lunt · Williamston, US
• Babak Borhan · Okemos, US
• Benjamin G. Levine · East Lansing, US
• Wei Sheng · Ann Arbor, US
• Jun Zhang · Taixing, CN
• Chenchen YANG · Santa Clara, US

Key dates

• Filing date: May 8, 2019
• Grant date: Mar 11, 2025
• Expiry date: Sep 19, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/52
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A luminescent solar concentrator (LSC) device is provided. The LSC device has an active layer including a modified luminophore having a polymethine component including a plurality of methine groups (═CH—)n, where n is an odd integer greater than 1. A hydrogen atom (H) of one of the plurality of methine groups is replaced by one of -AR1R2 or -DR3, where A is selected from nitrogen (N), phosphorus (P), arsenic (As) and antimony (Sb) and D is selected from oxygen (O), sulfur (S), selenium (Se), and tellurium (Te), R1 and R2 are independently selected from H, aliphatic groups, and aromatic groups bound to A through a carbon atom, or R1 and R2 together form an alicyclic ring containing A, and R3 is selected from H, aliphatic groups, aromatic groups, and alicyclic groups bound to D through a carbon atom.