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På grund av den världsomfattande diskussionen rörande ”klimatförändringen” som pågått under de senaste åren, så har försök gjorts för att få människor att ändra sina vanor och för att hitta alternativa energikällor. I dag är det fossila bränslen som dominerar som energikällor men eftersom de ger upphov till höga koldioxidhalter pågår det forskning för att ta fram alternativa bränslen. En grupp av There has been a worldwide debate about “the climate change” over the past years, accompanied with the efforts in finding a more environmental friendly way to live. One area of research is to find replacements for the fossil fuels, which is the major energy source today. The aim of this project is to investigate the atmospheric properties of a new potential group of biofuels, i.e. the group of com

A promising approach for upgrading the performance of an established low-bandgap solar technology without adding much cost is to deposit a high bandgap polycrystalline semiconductor on top to make a tandem solar cell. We use a transparent silver nanowire electrode on perovskite solar cells to achieve a semi-transparent device. We place the semi-transparent cell in a mechanically-stacked tandem con

The enrichment of Fe, relative to alpha elements such as O and Mg, represents a potential means to measure the ages of quasi-stellar object (QSO) host galaxies and probe nucleosynthesis in the early universe. QSOs exhibit prominent Fe II features and Mg II 2800 angstrom resonance doublet emission in the ultraviolet. Although chemical evolutionary models predict that the Fe/Mg abundance ratio decre

To be able to face the challenges brought on by climate change there is an urgent need to reduce the heavy dependence on fossil fuels. Bio-oil is one such renewable and carbon-neutral replacement that has shown promising potential. A key step in making bio-oil commercially feasible is improvements of the upgrading processes of the bio-oil. One such upgrading process is catalytic hydrodeoxygenation

Climate Emergency: Law, Policy, and Adjudication in the EU 9-10 May 2023, Lund 1 Conference Summary The conference ‘Climate Emergency: Law, Policy, and Adjudication in the EU’ was held in Lund on 9-10 May 2023, organized co-jointly by the EU Forum of Judges for the Environment (EUFJE) and Lund University with the support of the Lund Centre for European Studies (CFE) and the Association of Foreign

https://www.cfe.lu.se/en/sites/cfe.lu.se.en/files/2023-06/EUFJE-Lund%202023%20Conference%20Materials%20and%20Presentations.pdf - 2026-07-09

BECC brings together scientists at different stages of their careers. A central role is played by BECC’s Principal Investigators (PIs), who— as research leaders in Lund and Gothenburg—contribute to the development of BECC. Current PI:sList updated April 2026Lund UniversityAll names in the list below link to their respective webpages on Lund University's research portal. Centre for Mathematical Sci

https://www.becc.lu.se/research-imperative-questions-our-time/principal-investigators - 2026-07-09

We perform an experimental two-color high-order harmonic generation study in argon with the fundamental of an ytterbium ultrashort pulse laser and its second harmonic. The intensity of the second harmonic and its phase relative to the fundamental are varied, in a large range compared to earlier works, while keeping the total intensity constant. We extract the optimum values for the relative phase

In order to satisfy the growing energy needs of our planet’s population, and at the same time mitigate global warming, sustainable energy sources such as solar energy are indispensable. In addition to conventional silicon-based solar cells, nanotechnology offers interesting approaches for complementary applications. Multi-junction solar cells based on III–V semiconductors hold today’s world-record

To figure out the abnormal flow characteristics and thermal performance of supercritical fluids, some detailed information of supercritical pressure n-decane flowing in a horizontally round pipe is studied in terms of secondary flow induced by the huge density change or buoyancy force. According to an evaluation of turbulence models, the shear stress transport k-ω is suitable to execute the case o

Excitonic effects underpin the fascinating optoelectronic properties of 2D perovskites that are highly favorable for photovoltaics and light-emitting devices. Analogous to switching in transistors, manipulating these excitonic properties in 2D perovskites using coherent phonons could unlock new applications. Presently, a detailed understanding of this underlying mechanism remains modest. Herein, t

Fuel cells are highly efficient and green power sources. The typical membrane electrode assembly is necessary for common electrochemical devices. Recent research and development in solid oxide fuel cells have opened up many new opportunities based on the semiconductor or its heterostructure materials. Semiconductor-based fuel cells (SBFCs) realize the fuel cell functionality in a much more straigh

Females aged between 13 and 17 years old possess the highest non-contact ACL injury incidence of any sex-age strata. Considering that energy absorption strategies have been associated with a reduced risk for sustaining an ACL injury, evaluating landing performance in youth athletes requires investigations beyond the kinematic level. The purpose of this study was to identify sex-specific energy abs

Free-electron lasers are capable of producing high-quality radiation in a wide wavelength range and at very high power and brilliance. To reach improved performance especially regarding coherence, bandwidth and wavelength stability, different seeding techniques are often required. However, a successful implementation of seeding typically demands a very high-quality electron beam, in terms of energ

Stakeholders are voicing concerns over the social and environmental impacts of components of Europe’s renewable energy strategy that will significantly increase the region’s demand for forest biomass. Energy companies must address these concerns if they are to manage financial, reputational, regulatory and competitive risks. Sustainability schemes may help reduce such risks by increasing the socia

Previous work on intact thylakoid membranes showed that transient formation of a zeaxanthin radical cation was correlated with regulation of photosynthetic light-harvesting via energy-dependent quenching. A molecular mechanism for such quenching was proposed to involve charge transfer within a chlorophyll-zeaxanthin heterodimer. Using near infrared (880 - 1100 nm) transient absorption spectroscopy

Ultrashort laser pulses are finding increasing applications in biology and medicine. Such pulses can be used directly or after non-linear modification. Direct utilization includes propagation studies in scattering media with applications in optical mammography, dosimetry for photodynamic therapy and species concentration assessment. Intense continua of electromagnetic radiation of very brief durat

This chapter provides a brief introduction into the basic nonlinear-optical phenomena and discusses some of the most significant recent advances and breakthroughs in nonlinear optics, as well as novel applications of nonlinear-optical processes and devices. Nonlinear optics is the area of optics that studies the interaction of light with matter in the regime where the response of the material syst