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RASEI
@rasei.bsky.social
The Renewable And Sustainable Energy Institute: Creating Solutions for a Just and Sustainable Future

www.colorado.edu/rasei
Just out in Nature Physics, this collaborative report involving RASEI Fellow Ross Larsen explores how electrons move easily in some materials that lack a regular crystal structure. Important information to better understand how to make more efficient displays, electronic devices, and solar cells.
December 8, 2025 at 5:32 PM
Richard is a pioneer in materials science, leading the way in understanding the physics and chemistry that underpins how molecule absorb, emit, and interact with light. Richard presented an engaging afternoon of research, giving a tour of his work on displays and solar energy harvesters.
December 4, 2025 at 5:16 PM
This year we held the fourth in the Nozik Lecture Series, with Sir Richard Friend joining us from the University of Cambridge in the UK. www.colorado.edu/rasei/nozik-...
December 4, 2025 at 5:16 PM
Interested in doing research with RASEI?

We are carrying out a faculty search for those ready to explore how we can best use energy. We are looking for those interested in investigating energy-efficient computing or materials circularity.
December 2, 2025 at 4:02 PM
On 11/12/2025 Sir Richard Friend will deliver the 2025 Nozik Lecture, providing an account of his teams exploration of how organic semiconductors interact with light. Come and join us starting at 3:00 PM with a reception after. Register and find out more: bit.ly/2025Nozik
November 7, 2025 at 1:54 AM
The 2025 Nozik Lecture will be delivered by Sir Richard Friend, from the U Cambridge. Join us on 11/12/2025 at 3:00 PM for a tour of his work exploring organic semiconductors. Learn more: bit.ly/2025Nozik
November 6, 2025 at 2:10 AM
Sir Richard Friend will be presenting the 2025 Nozik Lecture. A pioneer in organic semiconductors, this presentation will chart his teams exciting work. Come and join us on 11/12/2025 at 3:00 PM. Register now for more information: bit.ly/2025Nozik
November 4, 2025 at 9:25 PM
Sir Richard Friend will be presenting the 2025 Nozik Lecture, describing his teams explorations of how organic molecules can manipulate light. Join us on Wed November 12, 2025 at 3:00 PM. Register and find out more: bit.ly/2025Nozik
November 3, 2025 at 8:04 PM
Join us on Wednesday November 12 at 3:00 PM for the 2025 Nozik Lecture, presented by Sir Prof. Richard Friend from U Cambridge. A pioneer in understanding how organic molecule interact with light, this promises to be an excellent afternoon of science: bit.ly/2025Nozik
October 31, 2025 at 10:03 PM
2/ The innovation uses a molecule that binds tightly to the nanocrystal surface and shuttles away positive charges (holes), preventing energy loss from recombination. ⚡
October 21, 2025 at 7:54 PM
1/ 🚨 Big news in photochemistry! A team led by RASEI's Gordana Dukovic has created a molecular dam that slows energy leaks in nanocrystals—making light-driven reactions 40x more efficient! 🌞🔬
October 21, 2025 at 7:54 PM
Understanding how these films degrade is critical in developing approaches to prevent decomposition in future designs. We can’t stop shade and shadows, but through careful scientific investigation we can create designs that can handle it: www.colorado.edu/ras...
September 16, 2025 at 9:44 PM
This suite of tools enabled the team to identify pinholes and weak spots in the perovskite films that were the sites of the reverse bias decomposition, providing direct evidence for the mode of decomposition.
September 16, 2025 at 9:44 PM
The exact mechanisms of how this decomposition happened were unknown and were the subject of debate. This study from the McGehee group used a suite of advanced techniques to examine the perovskite layer before and after reverse bias.
September 16, 2025 at 9:43 PM
Like the water in a kinked hose that will eventually burst at the weak point, current in a solar cell in reverse bias will find the weak point and cause an electrical short, causing heat, damage, and significantly reducing performance.
September 16, 2025 at 9:43 PM
Just out from RASEI Fellow Mike McGehee, a new study that directly addresses one of the key issues associated with perovskite-based solar cells: how perovskite films decompose when they operate in the shade: www.colorado.edu/ras...
September 16, 2025 at 9:43 PM
Great to celebrate a year of research, learning, and growing with Jack's Solar Garden this weekend. The team there has been busy showing all the ways that Agrivoltaics can benefit farmers, communities, and the land itself. www.jackssolargarden.com
September 15, 2025 at 4:25 PM
Day 2 of BEaRS was kicked off with a fantastic talk from RASEI Fellow Chuck Kutscher, who gave a wide ranging overview of the state of the clean energy transition. Chuck literally wrote the book on this, with the fourth edition coming out next month! www.colorado.edu/rasei/bears-...
July 18, 2025 at 5:07 PM
Day one of the 2025 BEaRS Workshop got off to a great start with our plenary speaker Amory Lovins exploring how integrative design can help improve energy efficiency. The program explored tynting windows, insulating windows, and chiral materials. www.colorado.edu/rasei/bears-...
July 17, 2025 at 4:38 PM
This work reveals a general mechanism where light activates the nickel and was found to be applicable across a wide range of nickel mediated transformations. This enhanced understanding enables improvement of current reactions, and the development of new transformations.
July 8, 2025 at 5:23 PM
Just out in Nature Communications, this collaboration including RASEI Fellows Garry Rumbles and Obadiah Reid new general insights into a vital reaction in organic synthesis.
July 8, 2025 at 5:23 PM
BEaRS Workshop: Kyri Baker, expert on the building-to-grid interface, will be presenting on approaches to optimize how buildings, from residential homes, to AI datacenters, can be refined for energy efficient operation. Register today!

www.colorado.edu/ras...

July 4, 2025 at 6:48 PM
BEaRS Workshop: with over four decades of experience in renewable energy research, Chuck Kutscher has an amazing depth of understanding. He will be presenting some of his insights on the integration of renewable energy technologies. Register today!

www.colorado.edu/ras...

July 4, 2025 at 12:12 AM
BEaRS Workshop: Mike McGehee, a leader in tandem perovskite solar cells and dynamic windows, will be speaking to how we can reduce energy loads in buildings through responsive dynamic tintable windows. Register today:

www.colorado.edu/ras...

July 3, 2025 at 2:35 AM
BEaRS Workshop: Ivan Smalyukh, who holds the world record for the most transparent material, will be giving a talk on how to turn windows from an energy liability into a passive heating and cooling opportunity. Register for the workshop today!

www.colorado.edu/ras...

July 2, 2025 at 1:02 AM