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A twist on atomic sheets to create new materials
Crystal rainbow lights effect, lens colorful diamond light. Vector bright ray or beam glowing light. 3d gem shining iridescent glare. Flare reflection from prism

A collaborative team of researchers led by Bo Zhen of the School of Arts & Sciences have created new materials by artificially twisting and stacking two-dimensional atomic “sheets.” New materials control light-matter interaction differently from constituent 2D atomic sheets, paving the way for next-generation laser, imaging, and quantum technologies.

(Image: istock / Sensvector)

A twist on atomic sheets to create new materials

A collaborative team of physicists in the School of Arts & Sciences have found that putting a twist on tungsten disulfide stacks illuminates new approaches to manipulate light.
Serving service members
In a room decorated with armed services' flags, pictures of service members, and stars, President Liz Magill talks with Landon Le, a second-year student.

Landon Le (center) talks with President Liz Magill. For Le, a transfer student fromWorcester, Massachusetts, coming to Penn was a lifelong dream. Joining the Massachusetts National Guard was a way to serve the country and go to college, he said. 

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Serving service members

There are more than 18 million veterans and an additional 1.6 million service members in the United States. Around 297 of them are students at Penn. In a Nov. 9 event, the University honored these students with an event coordinated by the Veteran and Military Affiliated Students program.

Kristina Linnea García

Election night takeaways
Signs for and against Ohio's Issue 1 are in a lawn covered in fall leaves in front of a church

Issue 1 signs sit outside Knox Presbyterian Church on Election Day, Nov. 7, 2023, in Cincinnati. Issue 1 specifically declares an individual’s right to “make and carry out one’s own reproductive decisions,” including abortion.

(Image: AP Photo/Joshua A. Bickel)

Election night takeaways

Political scientist Marc Meredith and PORES director Stephanie Perry, who both worked on NBC’s Decision Desk on Election Night with more than a dozen Penn undergrads, share their thoughts on what Tuesday’s results could mean for 2024.

Kristen de Groot

A striking soccer story, starring Stas Korzeniowski
Stas Korzeniowski stands inside a goal at Penn Park with the Philly skyline in the background.

Image: Eric Sucar

A striking soccer story, starring Stas Korzeniowski

The third-year forward discusses the mind of a striker, America’s growing soccer culture, his first-year to second-year jump, competing in semi-pro ball, playing injured, and what he enjoys about the beautiful game.
Carbon capture and common misconceptions: A Q&A with Joe Romm
Aerial landscape view of a large coal fired power plant with storage tanks for Biofuel burning instead of coal

Joe Romm, a senior research fellow in the School of Arts & Sciences’ Penn Center for Science, Sustainability, and the Media, has recently published two papers on carbon dioxide removal and bioenergy carbon capture and will be keynoting American University’s Third Annual Conference on Carbon Dioxide Removal Law & Policy: Carbon Removal Deployment: Law and Policy from Planning to Project.

(Image: iStock/Teamjackson)

  • Q&A

    • Carbon capture and common misconceptions: A Q&A with Joe Romm

    In a conversation with Penn Today, Joe Romm casts a sobering light on “solutions” to curb climate change.
    Penn’s ‘long tradition’ as a center for the study of African American history
    african american history professors

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    Penn’s ‘long tradition’ as a center for the study of African American history

    New hires like Marcia Chatelain and Vaughn Booker in Africana Studies and William Sturkey in the History Department are bolstering Penn’s position as one of the best places for the field of African American history.

    Kristen de Groot

    Art Matters: Hand-coiled clay jar by Pueblo artist Les Namingha
    clay jar in museum case surrounded by other clay works

    The clay jar by artist Les Namingha is on view in the Penn Museum’s long-term exhibition, Native American Voices: The People. Here and Now.

    (Image: J. DiSanto, Penn Museum)

  • Art Matters

    • Art Matters: Hand-coiled clay jar by Pueblo artist Les Namingha

    A hand-coiled clay jar by pueblo artist Les Namingha is on view in the Penn Museum’s Native American Voices gallery. The abstract surface design references water and its use in the U.S. Southwest.

    Louisa Shepard

    A healthy turnout for an off-year, mayoral election
    A centimeter-scale quadruped leverages curved-crease origami

    Penn Leads the Vote volunteers pose with Penn President Liz Magill, Cory Bowman of the Netter Center for Community Partnerships, and Dawn Deitch of the Office of Government and Community Affairs.

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    A healthy turnout for an off-year, mayoral election

    Penn Leads the Vote was on hand at the Houston Hall polling location, one of several polling places on campus where voters made their voices heard for the 2023 general election.
    Scientists observe composite superstructure growth from nanocrystals in real time
    Artist's impression of spherical binary nanocrystal superlattices featuring semiconductor (emissive) and magnetic/plasmonic (non-emissive) nanocrystals.

    A collaborative team of researchers led by PIK Professor Christopher B. Murray has observed for the first time composite superstructure growth from nanocrystals in real time. The discovery could enable engineers to more reliably manufacture next-generation materials by combining different nanocrystals. Shown here is an artist's impression of spherical binary nanocrystal superlattices featuring semiconductor (emissive) and magnetic/plasmonic (non-emissive) nanocrystals.

    (Image: Courtesy of Emanuele Marino)

    Scientists observe composite superstructure growth from nanocrystals in real time

    The findings could enable engineers to more reliably manufacture next-generation materials by combining different nanocrystals.
    The philosophy of pregnancy
    Maja Sidzińska.

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  • Q&A

    • The philosophy of pregnancy

    Fifth-year Ph.D. candidate Maja Sidzińska is working to fill a gap in philosophy of science scholarship about what individuality means.