iL‒ALUMNI
June 06, 2023
iL-Alumni Rebecca Saive:
“A Talent Incubator”
To kick off our new Alumni Series, we introduce former iL doctoral candidate Rebecca Saive. For over three years, the scientist, born on March 18, 1987, in Ludwigshafen, conducted research at the local InnovationLab. As a Postdoc, she moved to the renowned California Institute of Technology (Caltech) in Pasadena. Since January 2018, at the age of 36, Rebecca Saive has been a Professor of Applied Physics at the University of Twente in the Netherlands. It is evident that her profession and calling have always been intertwined. “I feel like I am in the right job. I incredibly enjoy working with a motivated team and young students,” says Rebecca Saive in an interview.

We are seated opposite each other in a small meeting room. For Rebecca Saive, it is a journey into the past. From December 2010 to February 2014, she worked as a research associate and doctoral candidate at InnovationLab. The memory of this phase of her career is still fresh. After completing her physics diploma at the Technical University of Munich and a three-month internship at BASF, she had applied to both Munich and the Karlsruhe Institute of Technology (KIT) and Heidelberg University. Then a doctoral position became available, and she decided to remain here at Speyerer Straße. As Rebecca Saive had already been working on organic solar cells, she was ideally positioned to deepen her expertise. “It was congenial, and we had visions,” Rebecca Saive recalls, “I saw the potential of an academic startup and thought: here, we can achieve something great together!”
From left to right: Dr. Janusz Schinke, Prof. Rebecca Saive, Michaela Sauer, Dr. Tanja Benedict, Dr. Michael Kröger, Dr. Sebastian Husein. Image: InnovationLab
Rebecca Saive: At a Glance
Career Milestones
Since 03/2023:
Professor of Applied Physics at the University of Twente, Enschede
2018 – 2023:
Assistant Professor and Associate Professor, Faculty of Science and Technology, UT
2020:
Named one of the global "Innovators Under 35" by the Massachusetts Institute of Technology (MIT)
2017 – 2021:
Co-founder and CTO of the startup ETC Solar (now MESOLINE)
2014 – 2018:
Postdoc and Senior Scientist at the California Institute of Technology (Caltech), Pasadena
2011 – 2014:
Doctoral Candidate in Physics at Heidelberg University, Research Associate at InnovationLab GmbH, Heidelberg
2006 – 2014:
Doctorate in Heidelberg, Diploma in Physics at Technical University of Munich, Intermediate Diploma at University of Mainz
2006:
Abitur at Werner-Heisenberg-Gymnasium in Bad Dürkheim
Recipient of numerous grants and awards


Personal Details
Rebecca Saive, born on March 18, 1987, in Ludwigshafen.

For the past year, she has been living in Enschede with her husband, Sebastian Husein, a materials scientist and business developer at the University of Twente, in a house with a stable and paddock.

Rebecca's Hobbies:
Horse care and riding, gardening, dancing, traveling, cycling, and hiking.
“We wanted to build our super lab”
The topic, team, and open atmosphere at iL were a perfect fit; as one of the first doctoral candidates, she enjoyed her doctoral period under the then-group leader Michael Kröger. Together with universities from Darmstadt, Braunschweig, and Karlsruhe, the “Heidelbergers” meticulously worked on shaping their research cosmos. “We wanted to build our superlab,” Rebecca Saive recounts with a smile, “and we already had the applications in mind.”
With combined efforts, work was carried out in the largely still empty rooms – holes had to be drilled, gas lines screwed together, and pipes laid. This speaks to a high degree of improvisation and a pioneering spirit that motivates team members with intrinsic drive and pride. Companies such as BASF, Merck, and Heidelberger Druckmaschinen were on site, and the exchange between science and industry inevitably took place. Daily, informally, directly. “We worked on a major experiment. Thanks to various professors, there was a great deal of independence, autonomy, and freedom. Being able to define everything ourselves is simply fantastic,” she humbly states.
Rebecca Saive still holds this view today. The freedom to explore research areas with an "out-of-the-box" mindset, both for herself and others, has been a consistent theme throughout her young, determined career. Influenced by her upbringing in Ludwigshafen-Ruchheim, where both her mother and father are chemists, Rebecca maintains a childlike curiosity. She has always been an exemplary student, ambitious, goal-oriented, and very persistent when necessary. A prime example: she virtually invited herself to Caltech in California. "I tried to get my foot in the door," she recounts, "scientific luminaries are approached by everyone." So, she traveled to Pasadena, proactively introduced herself to Professor Harry Atwater in person, delivered a compelling presentation, and secured a postdoctoral position to research interfaces of inorganic solar cells.
Scientist and, since 2017, also a startup entrepreneur
Between 2014 and 2018, Rebecca Saive resided in the USA – a period she would not want to miss. During this time, something additional emerged, as she was able to add an entrepreneurial portfolio to her scientific one. In 2017, together with American Harry Atwater and Dutchman Thomas Russell, she co-founded the startup ETC Solar (today MESOLINE), a company that develops new micro-3D printing processes to improve solar cells. The startup relocated to the Netherlands, was sold entirely in 2021, and now, under CEO Thomas Russell and based in Rotterdam, focuses on other thematic priorities. “I am completely out of it, but it is still a success story, and I am proud of it,” says Rebecca Saive. With a wink: it doesn't have to be her last startup! She considers it essential to explore ideas and develop technologies to bring them to market in a consumer-oriented way and integrate them into society. This approach, incidentally, is also part of the DNA of InnovationLab GmbH.
Colloquially, one might state: recognizing economic potential in the fields of natural sciences and engineering is considered a particular challenge.
In 2018, after numerous applications, Rebecca Saive joined the University of Twente in Enschede, initially as an Assistant Professor. Improving solar cells and their performance spectrum remains her passion. While novel reflectors that guide light within solar cells may be a focus even as a newly appointed professor, it is at least equally important to her to contribute through research to a cleaner, more sustainable energy source for the world and its future. Furthermore, a dynamic university environment and team are highly valued by her. Currently, Rebecca Saive leads a group of approximately ten Postdocs, PhD candidates, Master's, and Bachelor's students at UT, which is also the first campus university in the Netherlands. “I am closely involved in research, truly engaged. I love working with students and tracking their progress,” she explains. Every workday holds a positive surprise.
Ongoing pursuit of funding
Are there any limitations? The primary challenge in academic life is the constant pursuit of funding. It consumes an immense amount of time and energy to secure funding for even the most compelling research projects, whether at a national or European level. Co-financing from companies, even for topics like renewable energies, proves exceptionally difficult. “It’s simply not like it was at BASF 15 years ago,” states Rebecca Saive, “even when dealing with interesting innovations, it’s usually a huge challenge.” She desires greater commitment and, ultimately, more discernment to implement funding models for research ideas with less pressure for justification.
Rebecca Saive also has a few well-intentioned recommendations for InnovationLab in retrospect. “It’s a unique employer, but you often can’t convey that effectively on a CV,” she notes as a point of criticism. Her suggestions include: increased career coaching, enhanced opportunities for scientific publication, applying for awards, and creating an internal award. She considers these opportune measures to highlight a unique environment like that in Heidelberg's Bahnstadt, both within scientific circles and concerning a broader public.
“This is a talent incubator here”
“All of us alumni have secured good positions. Much of it happened through word-of-mouth. I know this place is a talent incubator and possesses a strong network,” Rebecca summarizes her reassuring internal and external perspective, “however, academic careers are a bit more challenging. I only know Julia Maibach, Gerardo Hernandez-Sosa, and myself who have become professors so far.”
Be that as it may, the cordial relationship with iL will endure. An exchange at the student level would be conceivable, especially as iL aims to re-establish itself as a platform and talent incubator for science and industry – as it once was.
Rebecca Saive would likely do (almost) everything the same way again. In the near future, the private aspect takes precedence. Together with her husband, Dr. Sebastian Husein, a materials scientist employed as a “Business Developer” at the University of Twente, she lives close to the city yet on its periphery. For the past year, the German-American couple has resided on an estate with a stable and pasture, including two horses, on the outskirts of Enschede.
In October, Rebecca and Sebastian are expecting their first child – a boy. There is a high probability that he will one day become an innovative, dedicated, and freedom-conscious scientist. And if not? Then so be it.
Flashback: Group photo from iL's early years with Rebecca Saive (4th from right), Janusz Schinke (5th from right), and Michael Kröger (5th from left). Image: InnovationLab
Joachim Klaehn
Head of Communications
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