The Germanium Diaries
The Germanium Diaries
Blog Article
Germaniul diferă de siliciu în privința disponibilității surselor de exploatare, în timp ce rezerva de siliciu este limitată doar de capacitatea de producție (din minute ce siliciul present din nisip și cuarț).
Nghiên cứu của FDA đưa ra kết luận rằng germani, khi sử đụng như là chất bổ sung dinh dưỡng, "thể Helloện một số nguy Helloểm tiềm tàng cho sức khỏe con người".[six]
Click the link to learn more. By continuing to make use of This web site, you conform to our use of cookies. We have also up to date our Privateness Detect. Click this link to check out what is new.
layer recedes for the upper and decrease bounds to depart powering SiO2. Just after oxidation and additional annealing in N2 to homogenize the Ge distribution, a thinner layer of Ge
The thickness of ZnO movie is measured for being 3 nm, which is in line with outcome acquired by SE measurement, along with the ZnO movie is within an amorphous variety.
Furthermore, the transport from the Ge/SiGe samples would not show signs of negative differential resistance (NDR), as Plainly observed inside the reference GaAs/AlGaAs sample in a latest density of 42 A/cm2. The lessened visibility of NDR can happen in quantum cascade buildings at high temperatures and/or with miniband-dependent or broad injectors. As seen from Fig. two(a), our NEGF simulations do not predict pronounced NDR capabilities. Furthermore, it could be seen the spectra from the Ge/SiGe samples are obtained at minimal injection currents (
ox is the oxide thickness. The relation previously mentioned motivates the implementation of superior-k components into gate stacks. The only way to boost C
The invention of germanium crammed a place predicted by Mendeleev's periodic table. Germanium took the position of the placeholder ingredient eka-silicon.
Studiile pe animale indica faptul ca germaniul, in forma anorganica si organica, sunt absorbiti speedy si aproape complet in tractul respirator si gastrointestinal. Distributia este relativ uniforma in cadrul organelor, insa exista o predispozitie pentru depozitarea acestuia in rinichi si ficat, click here fiind urmata de o excretie urinara rapida si acumulare pe termen lung in oase.
Relative atomic mass The mass of an atom relative to that of carbon-twelve. This can be around the sum of the number of protons and neutrons during the nucleus. Wherever multiple isotope exists, the value given may be the abundance weighted common.
4).[5] Organogermanii de tip R4Ge (unde R este un alchil) precum tetrametilgermanul si tetraetilgermanul sunt accesate prin intermediul celor mai ieftini precursori, tetraclorura de germaniu si nucleofili de alchil. Hidrizi organici de germaniu precum izobutilgerman au fost descoperiți ca fiind mai puțin periculoși și pot fi utilizați ca un lichid substitut pentru gazul toxic de germaniu ăn aplicațiile semiconductoare.
The oxide of germanium (GeO2) is usually identified as germania. It is extensively Utilized in optical devices and fiber optics. It is also utilized being a catalyst from the production of polyethylene terephthalate or PET plastic.
Like most minimal metals, germanium is created for a by-item of base metallic refining and isn't mined like a Key material.
Comparison of ρc of Al/ZnO/n+-Ge On this get the job done with These of other reported contacts, making use of P+ implantation dose since the x axis