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Efficient Inverse Perovskite Solar Cells by Uniform Deposition of Al2O3

NU 2024-102 INVENTORS Doekjae Choi Bin Chen Ted Sargent* SHORT DESCRIPTION This technology significantly improves the efficiency and stability of all-perovskite tandem solar cells through surface functionalization and atomic layer deposition. BACKGROUND Voltage deficits in inverted perovskite solar cells occurs primarily at the interface recombination...

Published: 11/20/2025 | Updated: 4/30/2025 | Inventor(s):

Keywords(s): Cleantech, Coating, Devices, Energy and Infrastructure, Photovoltaic, Solar, Sustainability

Category(s): Physical Sciences > Materials and Industrial Processes, Physical Sciences > Energy & Sustainability

Visible Light Photoreduction of CO2 in Pure Water using Quantum Dots as Photosensitizer

Visible Light Photoreduction of CO2 in Pure Water using Quantum Dots as Photosensitizer NU 2020-225 INVENTORS Emily Weiss* Benjamin Nagasing Francesca Arcudi Luka Dordevic Samuel Stupp SHORT DESCRIPTION This invention discloses a method for light-driven photocatalytic reduction of CO2 to CO in pure water using colloidal quantum dots as photosensitizers,...

Published: 11/6/2025 | Updated: 4/28/2025 | Inventor(s):

Keywords(s): Carbon Dioxide Management, Carbon Utilization, Catalyst, CCUS, Cleantech, Environment, Nanotechnology, Renewable, Solar

Category(s): Physical Sciences > Materials and Industrial Processes

All-Carbon Counter Electrode for Dye Sensitized Solar Cell

NU 2011-159 Inventors Byunghong Lee Donald B. Buchholz Rober P. H. Chang* Short Description Cost-effective carbon electrode to replace traditional platinum electrodes and improve solar cell efficiency Abstract Dye sensitized solar cells (DSSCs) are an inexpensive alternative to thin film solar cells. However, the efficiency of these solar cells...

Published: 11/6/2025 | Updated: 2/22/2019 | Inventor(s):

Keywords(s): Electronics & Circuits, Energy and Infrastructure, Solar

Category(s): Physical Sciences > Energy & Sustainability

Solid State Solar Cell that Overcomes Limitations of Gratzel Cell

NU 2011-088 and NU 2011-092 Inventors Robert Chang* In Chung Mercouri Kanatzidis* Konstantinos Stoumpos Byunghong Lee Abstract Northwestern researchers have developed a new solar cell that minimizes the limitations of conventional and current solar cells. This invention, the product of an interdisciplinary collaboration between a chemist...

Published: 11/6/2025 | Updated: 2/19/2019 | Inventor(s):

Keywords(s): Cleantech, Energy and Infrastructure, Solar

Category(s): Physical Sciences > Energy & Sustainability

Metal-Oxide Coating Method for Safer, More Efficient Dye-Sensitized Solar Cells

NU 2010-145 Inventors Joseph T. Hupp* Ho-Jin Son Short DescriptionDye-sensitized solar cells with increased light-to-electrical conversion efficiencies and less cost than conventional silicon-based cellsAbstract The harvesting of solar power is an important initiative in the effort to fulfill the energy requirements of modern society. Dye-sensitized...

Published: 11/6/2025 | Updated: 2/19/2019 | Inventor(s):

Keywords(s): Cleantech, Energy and Infrastructure, Manufacturing/Processing, Photovoltaic, Solar

Category(s): Physical Sciences > Energy & Sustainability

Tin Based 'Perovskites' as Lead-Free Alternative Photovoltaic Materials for Solar Cell Production

NU 2015-050 InventorsMercouri Kanatzidis* Robert Chang* Konstantinos Stoumpos Byunghong Lee Short DescriptionNew, environmentally safe, inorganic material for production of stable and cost-effective solar cells AbstractNorthwestern scientists have developed a novel tin-based perovskite-like material for use in photovoltaic materials for solar cell production....