HZB International Summer Student Programme (ISSP) 2026: Dates, Funding, Eligibility & Application Guide

Your Gateway to World-Class Research in Germany

The International Summer Student Programme (ISSP) 2026 at Helmholtz-Zentrum Berlin (HZB) represents one of Europe’s premier research internship opportunities for undergraduate students in STEM fields. This fully-funded, eight-week program offers 20 talented international students the chance to work on cutting-edge research projects alongside world-renowned scientists in Berlin, Germany’s vibrant capital of innovation.

Key Program Details:

• Duration: July 6 – August 28, 2026 (8 weeks)
• Application Period: October 20, 2025 – December 14, 2025 (midnight CET)
• Number of Positions: 20 undergraduate students
• Location: Berlin-Wannsee and Berlin-Adlershof campuses
• Program Type: Fully-funded research internship
• Language: English (German knowledge is advantageous but not required)

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About Helmholtz-Zentrum Berlin (HZB)

The Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) conducts research on complex energy materials, with a portfolio that includes solar cells, solar fuels, thermoelectrical materials, and magnetic materials suitable for new energy-efficient information technologies. With more than 1,200 employees, HZB ranks among Berlin’s top 100 employers and maintains strong ties with Berlin universities and international research institutions.

BESSY II: A World-Class Research Facility

HZB operates BESSY II, a third-generation synchrotron radiation source that produces extremely bright X-ray light in Berlin-Adlershof. The electron storage ring features 46 beam holes at undulator, wiggler, and dipole sources, offering users exceptional energy resolution. BESSY II attracts an average of 2,700 visits from guest researchers annually, making it one of Europe’s most sought-after research facilities.

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Research Areas and Opportunities

Participants in the ISSP 2026 program will have the opportunity to work on individual research projects in the following cutting-edge fields:

1. Photon Science

Work with brilliant X-ray pulses at BESSY II to investigate material structures and properties at the atomic level.

2. Photovoltaics and Solar Cells

Contribute to the development of next-generation solar energy technologies and materials for efficient energy conversion.

3. Catalysis and Solar Fuels

Research artificial photosynthesis and materials for sustainable hydrogen production and energy storage.

4. Electrochemical Energy Storage

Explore advanced battery technologies and materials for improved energy storage solutions.

5. Quantum and Functional Materials

Investigate quantum phenomena in solids, including superconductivity, magnetism, and topological insulators.

6. Accelerator Research

Gain hands-on experience with particle accelerator technology and synchrotron radiation applications.

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Program Benefits: What You’ll Receive

Financial Support

The ISSP 2026 provides generous financial support to all participants:

• Subsistence Allowance: €1,900 gross for external participants; €1,000 gross for students from Berlin/Potsdam universities
• Travel Subsidy: 75% of travel expenses reimbursed up to €200 for EU countries (including UK) and €800 for non-EU countries
• Working Hours: 40 hours per week with a formal 8-week internship contract

Program Activities and Framework

The ISSP goes beyond research work, offering a comprehensive framework program:

Professional Development:

• Guided tours of the BESSY II synchrotron radiation source and other state-of-the-art facilities
• Workshops on science communication and presentation skills
• Entrepreneurship training sessions
• Excursions to leading research institutions in Berlin
• Final scientific poster presentation event

Cultural and Networking Experience:

• Interaction with international peers from diverse backgrounds
• Networking with leading scientists and researchers
• Exploration of Berlin’s rich cultural heritage
• Integration into HZB’s international research community

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Eligibility Requirements

To be eligible for the HZB International Summer Student Programme 2026, you must meet ALL of the following criteria:

Academic Requirements

1. Student Status: You must be an undergraduate student (Bachelor’s or Master’s level). PhD candidates are NOT eligible.
2. Eligible Fields: Physics, Chemistry, Material Science, Structural Biology, Mathematics, Engineering, Life Sciences, Environmental Sciences, or related disciplines.
3. Academic Progress: You must have completed at least two years of full-time study in your major discipline at university level.
4. Enrollment Status: You must remain enrolled as a student at your university during your entire stay at HZB from July 6 to August 28, 2026.

Language Requirements

• English: Good knowledge of English is mandatory (program working language)
• German: Knowledge of German is advantageous but not required

Other Requirements

• Ability to provide a letter of reference from a professor or academic supervisor
• Commitment to participate for the entire 8-week duration
• For non-EU students: Willingness to obtain necessary visa and work permits

Important Note: HZB values diversity and actively encourages applications from underrepresented groups, particularly women in science.

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Application Requirements: Documents You’ll Need

Prepare the following documents in English or German (all files should be PDF format, not password-protected):

Required Documents:

1. Academic CV (Curriculum Vitae)
   • Maximum 2 pages
   • Tabular format with chronological sequence
   • Include education history, relevant projects, technical skills (programming languages, lab techniques), publications (if any)
2. Certificate of Enrollment
   • Must be valid until at least the end of August 2026
   • If not yet available for summer 2026, submit current certificate and provide updated version later
3. Academic Transcripts
   • Complete overview of your grades and coursework
   • Most recent transcript showing academic performance
4. Academic Degree Certificate
   • If applicable (for Master’s students who have completed Bachelor’s)
5. Passport or Valid ID
   • Copy of valid identity document
6. Letter of Reference
   • From a professor or supervisor who knows you well as a student
   • Should assess your academic abilities and professional conduct
7. Declaration of Certificate of Enrollment (ZAV)
   • Mandatory for students from non-EU countries
   • Required for German work permit authorities
   • Must be signed and stamped by your university

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Application Timeline: Important Dates

Date	Event
October 20, 2025	Applications open
December 14, 2025	Application deadline (midnight CET)
January-February 2026	Selection process and notifications
March-May 2026	Acceptance confirmations and visa processing
July 6, 2026	Program begins
August 28, 2026	Program concludes

Pro Tip: Start preparing your documents early. The application period is competitive, and well-prepared applications submitted earlier often receive more attention.

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How to Apply: Step-by-Step Guide

Step 1: Verify Your Eligibility

Carefully review all eligibility criteria to ensure you meet the requirements before investing time in the application.

Step 2: Gather Required Documents

Collect and prepare all required documents well in advance of the deadline. Ensure all documents are in PDF format and not password-protected.

Step 3: Prepare Your CV

Create a compelling 2-page academic CV highlighting:

• Your educational background
• Relevant coursework and research experience
• Technical skills (programming languages, laboratory techniques)
• Academic achievements and awards
• Any publications or conference presentations

Step 4: Secure Your Letter of Reference

Contact your professor or academic supervisor early to request a letter of reference. Provide them with:

• Information about the ISSP program
• Your research interests
• Deadline for submission
• Any specific points you’d like them to address

Step 5: Submit Your Application Online

Visit the official HZB ISSP website: https://www.helmholtz-berlin.de/jobskarriere/schule-und-studium/summer-schools/sommerstudierende/index_en.html

Complete the online application form and upload all required documents before the December 14, 2025 deadline.

Step 6: Selection Process

HZB supervisors review applications and select candidates based on:

• Academic performance and potential
• Relevance of background to available research projects
• Quality of application materials
• Diversity considerations

Step 7: Visa Application (for Non-EU Students)

If selected, non-EU students should immediately begin the German student visa application process. HZB will provide necessary documentation to support your visa application.

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Life in Berlin During Your ISSP Experience

Campus Locations

Berlin-Wannsee Campus (Lise-Meitner-Campus): Located in the scenic southwestern part of Berlin near the Wannsee lake, this campus offers a peaceful research environment.

Berlin-Adlershof Campus (Wilhelm-Conrad-Röntgen Campus): Home to BESSY II, this campus is part of Berlin’s science and technology park, one of Europe’s largest integrated research centers.

Living in Berlin

As a summer student, you’ll experience:

• World-Class Culture: Museums, theaters, concerts, and festivals
• Historical Significance: Remnants of Berlin’s complex 20th-century history
• Vibrant Nightlife: Diverse entertainment options for all interests
• Excellent Public Transportation: Comprehensive U-Bahn, S-Bahn, bus, and tram networks
• International Community: Multicultural atmosphere with English widely spoken
• Green Spaces: Numerous parks and outdoor recreation areas

Accommodation

While HZB does not provide accommodation, the center can assist with:

• Recommendations for student housing
• Information about short-term rental options
• Connections with local housing networks
• Guidance on Berlin’s rental market

Budget Planning: With the €1,900 stipend for external participants, you should budget approximately €800-1,000 for rent and living expenses, leaving funds for leisure activities.

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Frequently Asked Questions (FAQs)

Q1: Is there an application fee for the ISSP 2026?

A: No, the application process is completely free of charge.

Q2: Do I need to speak German?

A: No, German language skills are not required. The program is conducted entirely in English, which is the working language in laboratories and during all official events. However, basic German can enhance your cultural experience.

Q3: Can PhD students apply?

A: No, the program is exclusively for undergraduate students (Bachelor’s and Master’s level). PhD candidates are not eligible.

Q4: What if I graduate before the program starts?

A: You must remain enrolled as a student at your university during the entire program duration (July 6 – August 28, 2026). If you graduate before or during this period, you will not be eligible.

Q5: How competitive is the selection process?

A: The program is highly competitive, accepting only 20 students from a global applicant pool. Strong academic performance, relevant research experience, and well-prepared application materials significantly improve your chances.

Q6: Can I choose my research project?

A: HZB supervisors submit available projects. During the selection process, your background and interests are matched with suitable projects. You may express preferences, but final assignments are made by HZB coordinators.

Q7: Will I receive a certificate upon completion?

A: Yes, all participants receive a certificate of participation upon successfully completing the program, including the final poster presentation.

Q8: Are there opportunities to publish research results?

A: Depending on your project and results, there may be opportunities to contribute to scientific publications. Discuss this possibility with your supervisor during the program.

Q9: Can I extend my stay beyond the 8 weeks?

A: The program is strictly 8 weeks. Extensions are typically not possible due to program structure and visa limitations.

Q10: What are my chances of returning to HZB for further studies?

A: Many ISSP alumni maintain connections with HZB and return for Master’s theses, PhD studies, or postdoctoral positions. The program serves as an excellent networking opportunity for future collaborations.

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Alumni Success Stories

Previous ISSP participants have gone on to:

• Pursue PhD programs at top-tier international universities
• Publish research findings in peer-reviewed journals
• Establish long-term collaborations with HZB scientists
• Secure positions at leading research institutions and companies
• Contribute to major scientific breakthroughs in energy research

You can read blog posts from previous summer students about their experiences at HZB and life in Berlin on the official ISSP blog.

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Why Apply to ISSP 2026?

Unique Research Opportunities

Access to world-class facilities like BESSY II that are rarely available to undergraduate students elsewhere.

Career Development

Gain hands-on research experience that significantly strengthens graduate school applications and career prospects.

International Network

Build connections with leading scientists and fellow students from around the world.

Cultural Enrichment

Experience Berlin’s unique blend of history, culture, and innovation while developing professionally.

Financial Security

Focus entirely on your research with comprehensive financial support covering living expenses and travel.

Professional Skills

Develop essential skills in science communication, teamwork, and independent research.

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Contact Information

For questions about the International Summer Student Programme 2026:

Email: [email protected]

Official Website: https://www.helmholtz-berlin.de/jobskarriere/schule-und-studium/summer-schools/sommerstudierende/index_en.html

HZB General Inquiries: Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 14109 Berlin, Germany Phone: +49 (0)30 8062-0

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Final Tips for a Strong Application

1. Start Early: Begin gathering documents and preparing your CV well before the December deadline.
2. Tailor Your Application: Clearly articulate why you’re interested in HZB’s research areas and how the program aligns with your career goals.
3. Choose References Wisely: Select recommenders who know your academic abilities well and can provide specific examples of your capabilities.
4. Proofread Everything: Ensure all documents are error-free, professionally formatted, and clearly written.
5. Research Projects: Familiarize yourself with HZB’s research areas and recent publications to demonstrate genuine interest.
6. Highlight Relevant Experience: Emphasize any laboratory skills, programming abilities, or research experience relevant to materials science and energy research.
7. Be Authentic: Let your genuine passion for science and research shine through your application materials.
8. Follow Instructions Precisely: Ensure all documents are in the correct format (PDF, not password-protected) and meet specified requirements.

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Conclusion

The International Summer Student Programme (ISSP) 2026 at Helmholtz-Zentrum Berlin offers an unparalleled opportunity for ambitious undergraduate students to contribute to cutting-edge energy materials research in one of Europe’s premier research facilities. With comprehensive financial support, access to world-class equipment like BESSY II, and mentorship from leading scientists, this eight-week program can be a transformative experience that shapes your scientific career.

The application window opens on October 20, 2025, and closes on December 14, 2025. Don’t miss this chance to be part of a program that combines exceptional research opportunities with the cultural richness of Berlin.

Your journey to groundbreaking research in Germany starts here. Apply to ISSP 2026 and become part of HZB’s global scientific community!

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Additional Resources

• HZB Research Topics: https://www.helmholtz-berlin.de/forschung/index_en.html
• BESSY II User Facility: https://www.helmholtz-berlin.de/forschung/quellen/bessy/index_en.html
• HZB Code of Conduct: https://www.helmholtz-berlin.de/zentrum/wofuer-wir-stehen/werte_en.html
• Study in Germany Portal: https://www.study-in-germany.de