Science Highlights

[Left] Next generation multijunction solar cell with a dilute nitride middle junction (red)  [Right] A transition from delocalized to localized electron trapping is directly observed in the photoluminescence (PL) spectra as the magnetic field is increased up to 57 Tesla.

Optimizing New Materials for Extreme Solar PV Performance

High magnetic fields reveal the existence of nitrogen superclusters. Read More »

The density of bonding electrons (red and yellow) in silicon (upper left) is rather evenly distributed, whereas in zinc oxide (upper right), it is concentrated around the oxygen atoms.

Understanding How Semiconductors Absorb Light

Advances in how we calculate optical properties of semiconductors shorten the path to improved solar cells and other optoelectronic devices. Read More »

Distribution of superconductivity around holes (white) in a thin sheet of superconducting film.

A Breakthrough for High-Field Superconductors

Nano-structuring may help superconductors overcome a decades-long barrier to use in more powerful motors and magnets. Read More »

The left figure shows computed positions for atoms at grain boundaries during deformation...

New Understanding of Radiation-Enhanced Deformation

When it comes to stressing a crystal during irradiation, not all atoms are created equal. Read More »

A focused laser is scanned over the sample, a suspended nanobeam of VO2.

Illuminating How Complex Oxides Turn Light into Electrical Current

Nanoscale imaging of the current generated by light provides insights for future generation optoelectronic devices. Read More »

Schematic illustration of cylinder-forming diblock copolymers...

Design Principles Revealed for a New Class of Functional Biomaterials

Ordered arrays of functional proteins with designed molecular properties created through self-assembly by combining proteins and synthetic polymers. Read More »

Recent experimental and theoretical studies of heat transport through a periodic stack of thin films known as a superlattice show that a portion of the thermal energy carriers maintain wave-like properties while traversing through the nanostructure.

An Unexpected Heat Wave

Observation of wavelike heat conduction reveals new possibilities for tailoring thermal transport through wave effects. Read More »

Illustration of multiple exciton generation (MEG) with a singlet exciton (S1)...

Double the Charge from One Photon in Organic Photovoltaics

First observation of key intermediate state in the conversion of one photon to two electrons. Read More »

An electrolyte molecule (ethylene carbonate: C3H4O3) weakly binds (dashed line) to the positive electrode surface (Li0.6Mn2O4)...

Understanding Nature’s Choreography in Batteries

Charge-discharge chemistry for lithium ion batteries elucidated by theoretical calculations. Read More »