182 citations · 794 across the 25 of their papers we have counts for
7 papers · 1 filter
Composition variations in Cu(In,Ga)(S,Se)2 solar cells: not a gradient, but an interlaced network of two phases
Aubin JC. M. Prot, Michele Melchiorre, Felix Dingwell +10
Record efficiency in chalcopyrite-based solar cells Cu(In,Ga)(S,Se)2 is achieved using a gallium gradient to increase the band gap of the absorber towards the back side. Although t…
Magnetic properties of nickel electrodeposited on porous GaN substrates with infiltrated and laminated connectivity
Yana Grishchenko, Josh Dawson, Saptarsi Ghosh +6
We studied the magnetic properties of ferromagnetic-semiconductor composites based on nickel and porous-GaN, motivated by the effort to couple magnetic and semiconductor functional…
Surface zeta potential and diamond seeding on gallium nitride films
Soumen Mandal, Evan L. H. Thomas, Callum Middleton +9
Measurement of zeta potential of Ga and N-face gallium nitride has been carried out as function of pH. Both the faces show negative zeta potential in the pH range 5.5-9. The Ga fac…
Non-polar (11-20) InGaN quantum dots with short exciton lifetimes grown by metal-organic vapor phase epitaxy
Tongtong Zhu, Fabrice Oehler, Benjamin P. L. Reid +4
We report on the optical characterization of non-polar a-plane InGaN quantum dots (QDs) grown by metal-organic vapor phase epitaxy using a short nitrogen anneal treatment at the gr…
Low threshold, room-temperature microdisk lasers in the blue spectral range
Igor Aharonovich, Alexander Woolf, Kasey J. Russell +4
InGaN-based active layers within microcavity resonators offer the potential of low threshold lasers in the blue spectral range. Here we demonstrate optically pumped, room temperatu…
Controlled tuning of whispering gallery modes of GaN/InGaN microdisk cavities
Igor Aharonovich, Nan Niu, Fabian Rol +6
Controlled tuning of the whispering gallery modes of GaN/InGaN μ-disk cavities is demonstrated. The whispering gallery mode (WGM) tuning is achieved at room temperature by immersin…
Nucleation and Growth of GaN/AlN Quantum Dots
C. Adelmann, B. Daudin, R. A. Oliver +2
We study the nucleation of GaN islands grown by plasma-assisted molecular-beam epitaxy on AlN(0001) in a Stranski-Krastanov mode. In particular, we assess the variation of their he…