Vera Adamchuk, portrayed by Natalia Bakut

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In: BESSYBeamlineScientists, Energymaterials, International, Lightsources

An Artwork reminds on the scientist who cofounded the Russian German Collaboration at BESSY II It seems, she has just calculated something, a hand lies on the paper, next to the pen. The other one supports the chin, relaxed and curious, she looks at the viewer. The Russian physicist Vera Adamchuk is immortalized in the bronze relief attached to a column in the BESSY II hall. The column stands in front of the dipole beam line of the Russian-German laboratory. Vera Adamchuk is regarded as a pioneer of German-Russian cooperation in the field of synchrotron radiation. She co-founded the Russian-German laboratory at BESSY II inRead More →

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In: International, Summerstudents

Actually, I had a funny-bad experience in my first week living in Berlin. On that day, I just wanted to survey “how to reach HZB from apartment”. I was accompanied by my mom and dad. We bought single trip ABC ticket from Jungfernheide (near Charlottenburg) station since we hadn’t known yet about the zone. The outbound journey was fine, we took S41 then S7 to Wannsee and 318 bus. There was also a ticket checker but we passed it.   When we did the return journey, we got some problems. At first, the ticket machine couldn’t be changed into English version. Our phone were alsoRead More →

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In: International, Summerstudents

Ingredients: kesterite bulks, carbon boats, liquid nitrogen, quartz ampoule Hi everybody today we are going to prepare one of my favorite “dishes”- Homogeneous kesterite. But first of all, put on gloves and lab coats to protect yourself from accidents. Preparation can be divided in the following steps: 1.Grinding Put kesterite bulks in an agate mortar and grind them using a pestle until you obtain a homogenous mass (powder). Imagine that you are making mashed potatoes. 2.Pressing pellets Use a hydraulic press to turn your powders into cylindrical pellets. To do this, fill the pressing tool with the powder and press it for 5 minutes. WhenRead More →

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In order to make use of the current produced in a solar cell, one needs electrodes and cables to transport the produced charge carriers to the consumer – but how do the charge carriers reach the electrodes? In many solar cell types, a conductive material is necessary. As the sunlight still needs to reach the absorber layer (where the energy-transfer from photons to electrons and thus the generation of the charge carriers happens), this material not just needs to be conductive but also transparent in a wide wavelength range. This difficult task is taken over by Transparent Conductive Oxides (TCOs). Metal oxides have shown toRead More →

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In: International, Summerstudents

Behind The Camera Berlin!!! I haven’t ever thought of coming to Berlin. It is actually like a dream for every people in our country. I live in a country named Bangladesh where people struggle every day to meet their fundamental rights such as food, education, health, etc. Our country has a lot of people compare to the area of her. So it is natural that she doesn’t have that much quality educational institution for pursuing higher education. Every year a lot of people compete to get into the public university but only a few can make it. Considering all these struggles and scenarios, it isRead More →

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In: Energymaterials, International, Summerstudents

OK, here we are. My name is Vlad. I’m a summer student from Moscow and the author of this note concurrently.  If you are reading this post, I bet 90% you was interested in the title. But I suggest to talk about it a bit later.  Just for the beginning , everything you need to know about solar cells is that they consist of silicon. The second point is that the first one was a lie. In fact, not only silicon is used in solar cells. Since the moment people decided to use solar cells as a real source of energy, scientists have been workingRead More →

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In: Energymaterials, International, Summerstudents

I want you to imagine the sun with wrong rays that cause a lot of problems. We cannot enjoy the sunshine. We want to do something to replace the wrong rays with the right ones. In my scientific project, the sun is germanium (Ge) nanoparticles, and the rays are a ligand. The wrong ligand is oleylamine. Oleylamine is an organic molecule containing an amino group and a long hydrocarbon chain. It would be perfect to remove oleylamine from the particles and attach another molecule. Speaking in scientific language, I am trying to do ligand exchange on germanium nanoparticles surface. Why germanium? Firstly, Ge is anRead More →

quantum dot picture

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In: International, Summerstudents

If you imagine an atom being of the size of a cherry then a quantum dot (QD) is a watermelon. Although it is much bigger than an atom, a QD is still a small object, nanometers long, and it preserves atomic features. One of them is a discrete energy spectrum. For this reason, many people address QDs as „artificial atoms“.

The great thing about QDs is that …Read More →

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In: International, Summerstudents

“If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atoms—little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In that one sentence, you will see, there is an enormous amount of information about the world, if just aRead More →

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In: International, Summerstudents

Hello! I am Olga. Or you can call me Olya. I’m a summer student, but you have probably already noticed that. You may also know that under the summer program, we should write a blog post telling about our research or working process in the lab. And here we are. I don’t want to bore you with it. So let’s turn this task into a little game. I hope you enjoy it. Good luck! Everyone, this is Blahblah (the most common name, definitely). Or you can call him Blah. Blahblah is fond of photography, playing drums and watching documentaries on Netflix. Blahblah studies PR andRead More →