摘要:
Photovoltaic semiconductor devices and associated methods are provided. In one aspect, for example, a method of making a photovoltaic semiconductor device having enhanced electromagnetic radiation absorption can include applying a damage removal etch (DRE) to a semiconductor material to an RMS surface roughness of from about 0.5 nm to about 50 nm and texturing a single side of the semiconductor material. The texturing further includes irradiating a target region of the semiconductor material with laser radiation to create features having a size of from about 50 nm to about 10 microns.
摘要:
Methods for forming semiconductor devices include providing a textured template, forming a buffer layer over the textured template, forming a substrate layer over the buffer layer, removing the textured template, thereby exposing a surface of the buffer layer, removing oxide from the exposed surface of the buffer layer, and forming a semiconductor layer over the exposed surface of the buffer layer.
摘要:
Methods for forming semiconductor devices include providing a crystalline template having an initial grain size, annealing the crystalline template, the annealed template having a final grain size larger than the initial grain size, forming a buffer layer over the annealed template, and forming a semiconductor layer over the buffer layer.
摘要:
A semiconductor structure including a cap layer formed over a semiconductor substrate having a rough edge, which discourages formation of dislocation pile-up defects.
摘要:
Dislocation pile-ups in compositionally graded semiconductor layers are reduced or eliminated, thereby leading to increased semiconductor device yield and manufacturability. This is accomplished by introducing a semiconductor layer having a plurality of threading dislocations distributed substantially uniformly across its surface as a starting layer and/or at least one intermediate layer during growth and relaxation of the compositionally graded layer. The semiconductor layer may include a seed layer disposed proximal to the surface of the semiconductor layer and having the threading dislocations uniformly distributed therein.
摘要:
Semiconductor structures are formed with semiconductor layers having reduced compositional variation. Top surfaces of the semiconductor layers are substantially haze-free.
摘要:
A method for minimizing particle generation during deposition of a graded Si1-xGex layer on a semiconductor material includes providing a substrate in an atmosphere including a Si precursor and a Ge precursor, wherein the Ge precursor has a decomposition temperature greater than germane, and depositing the graded Si1-xGex layer having a final Ge content of greater than about 0.15 and a particle density of less than about 0.3 particles/cm2 on the substrate.
摘要翻译:在半导体材料上沉积梯度的Si 1-x N x N x层的最小化颗粒产生的方法包括在包括Si前体和Ge的气氛中提供衬底 前体,其中所述Ge前体具有大于锗烷的分解温度,以及沉积具有大于约0.15的最终Ge含量的分级的Si 1-x N x Ge x层;以及 衬底上的颗粒密度小于约0.3颗粒/ cm 2。
摘要:
A method for minimizing particle generation during deposition of a graded Si1−xGex layer on a semiconductor material includes providing a substrate in an atmosphere including a Si precursor and a Ge precursor, wherein the Ge precursor has a decomposition temperature greater than germane, and depositing the graded Si1−xGex layer having a final Ge content of greater than about 0.15 and a particle density of less than about 0.3 particles/cm2 on the substrate.
摘要翻译:在半导体材料上沉积梯度Si1-xGex层期间最小化颗粒产生的方法包括在包括Si前体和Ge前体的气氛中提供衬底,其中Ge前体的分解温度大于锗烷,并沉积 分级的Si1-xGex层,其具有大于约0.15的最终Ge含量和小于约0.3颗粒/ cm 2的颗粒密度。
摘要:
Semiconductor structures are formed with semiconductor layers having reduced compositional variation. Top surfaces of the semiconductor layers are substantially haze-free.
摘要:
A method for minimizing particle generation during deposition of a graded Si.sub.1-xGe.sub.x layer on a semiconductor material includes providing a substrate in an atmosphere including a Si precursor and a Ge precursor, wherein the Ge precursor has a decomposition temperature greater than germane, and depositing the graded Si.sub.1-xGe.sub.x layer having a final Ge content of greater than about 0.15 and a particle density of less than about 0.3 particles/cm.sup.2 on the substrate.
摘要翻译:在半导体材料上沉积梯度Si 1-x Ge x层的过程中使颗粒产生最小化的方法包括在包括Si前体和Ge前体的气氛中提供衬底,其中Ge前体具有分解 温度大于锗烷,并沉积具有大于约0.15的最终Ge含量并且小于约0.3颗粒/ cm 2的颗粒密度的梯度Si 1-x Ge 2层在衬底上 。