摘要:
A semiconductor substrate includes a substrate, at least a semiconductor layer, a first anti-reflection layer, and a second anti-reflection layer. The semiconductor layer is disposed on the substrate. The first anti-reflection layer is disposed on the semiconductor layer. The second anti-reflection layer is disposed on the first anti-reflection layer. The second anti-reflection layer is a discontinuous layer with the capability of photon conversion.
摘要:
A solar cell (10, 40, 50) includes a semiconductor base (12), a first doped semiconductor layer (14), an insulating layer (16), a second doped semiconductor layer (18) and a first electrode layer (20). The semiconductor base (12) has a first doped type. The first doped semiconductor layer (14), disposed on the semiconductor base (12), has a doped contact region (22). The insulating layer (16) is disposed on the first doped semiconductor layer (14), exposing the doped contact region (22). The second doped semiconductor layer (18) is disposed on the insulating layer (16) and the doped contact region (22). The first doped semiconductor layer (16), the doped contact region (22) and the second doped semiconductor layer (18) have a second doped type, and a dopant concentration of the second doped semiconductor layer (18) is between that of the first doped semiconductor layer (14) and that of the doped contact region (22). The first electrode layer (20) is disposed corresponding to the doped contact region (22).
摘要:
A solar cell is discussed. The solar cell includes a substrate, a first electrode on the substrate, a second electrode, and at least one photoelectric transformation unit positioned between the first electrode and the second electrode. The at least one photoelectric transformation unit includes a p-type semiconductor layer, an intrinsic (i-type) semiconductor layer, an n-type semiconductor layer, and a buffer layer positioned between the p-type semiconductor layer and the i-type semi-conductor layer. A hydrogen content of the buffer layer is more than a hydrogen content of the i-type semiconductor layer.
摘要:
A thin-film tandem photovoltaic cell comprises on a glass substrate a front TCO (3), an amorphous silicon cell as top cell (5), a semi-transparent reflector layer (7), a microcrystalline silicon bottom cell (9). Thereby, the semi-transparent reflector layer (7) is of n-doped silicon oxide with an index of refraction below 1.7. The thickness of the amorphous silicon top cell (5) is below 200 nm.
摘要:
One or more outdoor lights may operate independently with sensing and control processes mainly on-pole, or may communicate as a networked array of poles, wherein a master/coordinating pole/node transmits signals from the networked array to a control station, and receive signals from the control station for the networked array, via call phone and/or satellite. Independent poles and/or the networked array of poles may be adapted for energy-saving processes; cooperation with the grid; renewable power production and storage by means of solar panels and associated batteries; and/or to provide Wi-Fi hot-spots, public safety alarms, information or data-analysis to the public or customers. An energy-saving active control system controls charging of the batteries and distribution of energy from the solar panel and/or the batteries, so that the batteries remain undamaged, and the light(s) remain operation even during the winter or other long periods of clouds and diffuse light. The active control of energy distribution by a load controller function may include dimming during the night, except when sensors detect motion, and, in extreme cloudy or diffuse-light periods, increasing increments of dimming and/or load shedding, to preserve the batteries and operability.
摘要:
Die vorliegende Erfindung betrifft eine Dünnschichtsolarzelle sowie ein Verfahren zu deren Herstellung, wobei der rückseitige Schichtaufbau der Dünnschichtsolarzelle einen mehrschichtigen Aufbau aufweist umfassend eine metallische Haftschicht, eine Übergangsschicht sowie eine Ag-haltige Reflektorschicht und durch einen hohen Reflektionsgrad sowie eine gute Haftung des Schichtsystems ausgezeichnet ist.