Now & Next: Illuminating Solar Innovations with Barry Rand

Barry Rand Headshot
Professor Barry Rand stands at the frontier of sustainable electronics and energy solutions as a Professor of Electrical and Computer Engineering and the Andlinger Center for Energy and the Environment at Princeton University. His work in thin-film electronics and photovoltaic materials offers promising paths toward greener technologies, with real potential to reshape how we power our world.

As a student in his ENE 431: Solar Energy Conversion course, I’ve had the privilege of learning from Professor Rand this semester. This course has challenged how I think about energy and prompted me to look more closely at the systems that power the world. What stood out to me wasn’t just the technology, but the sense of possibility it held. I found myself thinking more seriously about what the future of energy could look like, and who’s shaping it. That curiosity led me to interview Professor Rand for Now & Next, where we discuss his research in thin-film electronics and where he sees the field heading.

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Heads Up: You Might Need Study Approval from the Institutional Review Board

Image of a fountain in the foreground whose spray creates a rainbow. Background includes the School of Public and International Affairs
A rainbow at the Fountain of Freedom (colloquially called the “SPIA Fountain”), taken during a break from working on my thesis

Independent research at Princeton offers an incredible opportunity for students to explore their academic interests and gain experience in the research world. This year, I’m working on my Senior Thesis with Professor Aleksandra Korolova, conducting an audit of Google ad delivery optimization algorithms. Specifically, I am studying whether aspects of advertisements—the image, text, links, and so on—impact the demographics of the audience to whom the advertisement is delivered.

In the fall, many people were curious about how my thesis was progressing. The truth was, for a few weeks, I hadn’t started running any experiments, since I first needed my research to be approved by the Institutional Review Board (IRB). Through this experience, I both gained insight into the IRB process and found that many students had never even heard of the IRB. In this article, I share my experience and offer advice for students who are planning to conduct independent research.

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Insights and Interests: An Interview with Cevina Hwang

Hailing from Saipan and South Korea, Cevina Hwang is a junior in the Ecology & Evolutionary Biology department. With a longstanding interest in the field of dentistry, she chose to expand upon this passion through her junior work, where she will be exploring the evolution of the human jaw and teeth.

Join me below to read about Cevina’s journey in the junior work process. 

Headshot of Cevina Hwang
Cevina Hwang, Princeton University ’26
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Navigating Uncertainty

Photo of Nassau Hall during a winter snowstorm
Nassau Hall in the midst of a snowstorm

The start of 2025 has been an interesting one to say the least when it comes to research. New breakthroughs in Artificial Intelligence models are rapidly advancing our understanding of everything from ancient texts to protein structures. At the same time, they have complicated the publishing process by introducing a flood of junk to scientific journals. Turning to the federal level, years of biomedical research has culminated in the FDA approval of a new non-opioid pain medication. Developments like this are happening while major national pillars of our research structure face confusing directives amidst a clear priority shift in budget allocation. The degree of uncertainty researchers at the undergraduate level face today can feel overwhelming, but uncertainty is intrinsic to research across all disciplines. Whether that uncertainty is caused by human participants or dated lab equipment, it’s an aspect of research across the board. The unique large-scale uncertainties confronting researchers today can be faced using the same ways uncertainty is addressed during the research process.

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A Case for Interdisciplinary Study at Princeton

Thetis in chariot with winged horses flying over the sea accompanied by the messenger gods, Iris and Hermes.
A Terracotta lekythos (oil flask) depicting Thetis in chariot with winged horses flying over the sea accompanied by the messenger gods, Iris and Hermes, as described in the last book of the Iliad. Photo credit: Sappho Painter, The Metropolitan Museum of Art.

When asked about what courses I’m taking and I share the list, I’m often greeted with blank stares or curious expressions. The response I elicit is, “Why are you making life so hard on yourself?” And no, it’s not because I’m loading up on a truckload of courses like physics, math, chemistry, and computer science.

As a classics major-turned-premed, my schedule has me jumping from subject to subject across disciplines. My days consist of learning about synthesis reactions in organic chemistry in a massive lecture hall, and puzzling over Plato in ancient Greek with a circle of 7 classmates. My head spinning with Greek letters and grammatical constructions, I head for immunology, and then back again to read Latin literature. As STEM and humanities classes are often located on opposite sides of campus, I find myself trekking up and down Washington Road multiple times a day. Aside from getting my daily steps in, what exactly do I get for doing this?

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Taking a (Much-Needed!) Break During Winter Break

Image of ocean with setting sun, taken by the author.
Golden hour in San Diego, captured during my winter break last year on an occasion where I wanted to recharge in nature!

Being a Princeton student is an incredible blessing—students have opportunities to learn from world-class professors and lecturers, engage deeply in independent research, spend time with wonderful communities on campus, and so much more.

One special opportunity I have always appreciated is the five or six week-long winter break. This year, it is a ton of time for me to make progress on my Senior Thesis, read ahead for my upcoming spring courses, and even teach myself something new. In past winters, I have also spent much of this time applying and preparing for internships. Past PCUR correspondent Ryan Champeau has a wonderful post on making the most of winter break.

My favorite point from Ryan is that you should spend winter break in a way which makes you happiest, whether it’s making a ton of progress on your work or resting. Being intentional about rest during winter break involves planning activities (or a lack thereof!) that help you recharge physically, mentally, and emotionally. In this post, I’ll share some tips you can draw upon to create a restorative break!

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Balancing Research and Academics: The Art of Course Planning

Screenshot of TigerJunction page with course planning template
A blank Tiger Junction page ready to be filled with the courses for next semester.

Planning your courses while doing research can feel like a juggling act—one that involves not just your academic requirements but also your research commitments and, of course, your own well-being. At a place like Princeton, where opportunities in labs and research projects abound, learning how to navigate and integrate everything into your schedule can make a huge difference. 

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Dreading December: Fall is Just That Time of Year 

Nassau Hall on Princeton’s campus. Photo Credit: Adriana De Cervantes.

I think that November is a critical month for the fall semester. Many students feel more pressure to do better for the rest of the semester as midterm grades come in. Students in labs start to have their lab work amp up at this point in the semester, especially newbie researchers who just joined a lab in September. That ‘just getting to know the lab’ phase is over; the sun is setting at an outrageous time; the weather is getting colder; and the professors seem to make less sense. Holidays feel like they’re right around the corner, so the end of the semester feels so close yet so far. In short, November and the first half of December is a weird limbo phase that, at its best, is a transition/preparation period and, at its worst, purgatory. With this pressure in mind, it becomes important to recognize how to balance research work and studies and mental health and social life and…and…and the list goes on.

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Navigating the Slump: When Even Your Passion Projects Get You Down

Empty corner of the Firestone Library with books lining the shelves and a table and lamp in the foreground.
A quiet corner of a library where you might find a new way to approach your project.

We all have those moments when we doubt where we’re headed, even when the path we’re on is one we chose with so much excitement. Maybe it’s that feeling of disconnect, where you can’t quite see why you’re doing what you’re doing—even if it’s the thing you used to call your dream. And when it comes to research, that slump can feel even more intense.

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Simplify Your Research Poster Printing: Using Princeton’s Makerspace Large Format Printer

Photo of three students wearing black suits and smiling at the camera. Machine learning research poster in the center.
Alexis Wu (author), Jenny Pang ‘24, and Jimmy Hoang ‘24 at the COS 484: Natural Language Processing Spring 2024 poster session.

The end of the semester is often accompanied by deadlines for semester-long projects and final papers (including the infamous Dean’s Date deadline, which past correspondent Ryan Champeau has amazing advice on!). For some classes, students may be asked to create an academic or research poster and present their work to their peers in a poster session. A couple of courses I have taken where I produced a final research paper were COS 484: Natural Language Processing and ASA 238: Asian-American Psyches

In ASA 238, the department provided funding so that all students in the class could have their poster printed through Princeton Print & Mail Services. However, this option typically is not free-of-charge to students. Moreover, since this process typically takes 4-5 business days after the proof is approved to be printed, course instructors may set conservatively early deadlines so that all students’ posters may be printed on time. With more deadlines in other classes, this can create additional stress.

The great news is, this stress can be avoided with a free, straightforward alternative: utilizing the Makerspace’s Large Format Printer. The Princeton University Library (PUL) Makerspace is a creative space on the A-level of the Lewis Science Library open to current students, faculty, and staff. If you’ve never used the space before, it might be daunting, but I hope this article will clarify the process and assuage any fears you may have!

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