We present a new method to transfer the three dimensional (3D) porous layer from InP wafer
based on the disturbance, during electrochemical etching of n-InP (100) with …

Substrate reuse technologies focus on reducing photovoltaic device costs via substrate
utilization over multiple devices. The three common substrate reuse strategies include …

The vibrational dispersion relations of porous germanium (pGe) and germanium nanowires
(GeNWs) were calculated using the ab initio density functional perturbation theory with a …

We demonstrate that cathodic polarization is an effective method for in-situ control of surface
morphology in the fabrication of mesoporous silicon. The cathodic currents are applied on …

We work on the transfer from CZ wafers to epitaxially grown Si and Ge wafers on reusable
substrates with a porous detachment layer (“kerfless wafering”) to reduce material and …

Multi-junction solar cell efficiencies far exceed those attainable with silicon photovoltaics;
however, the high cost of materials remains a barrier to their widespread use. Substantial …

Porous germanium multiple layer stacks were prepared using bipolar electrochemical
etching. In dependance of the porosity within the individual porous layers they can be used …

abstract Semiconductor-based freestanding membranes (FSM) have recently emerged as a
highly promising area of advanced materials research. Their unique properties, such as …

Quasi-monocrystalline germanium (QMC Ge) is investigated for potential applications in
high-efficiency, low-cost multi-junction solar cell design. The morphology and electrical …

Resumo Winter da Costa, Edgard; Souza, Patrícia. Tecnologias alternativas para fabricação
de células solares de elevada eficiência com redução de custo e consumo de Ge. Rio de …