Year: 1997
Type: article
Abstract: The paper gives an overview over recent results and future potentials of the cornbined ainorphous silicon/microcrys~alline silicon "micromorph" tandem cell technology.The reported results include replacement of boron-microdoping compensation by employment of gas-purification to obtain mid-gap iriicrocrystailine silicon, leading to tne fabrication of a 3.6 ~m thick microcrystalline silicon p-i-n cell with 7. 7% s~ble efficiency.lncreased the deposition rate of microcrystalline by SiH4fAr/H2 plasma deposition results in a 3.1 % efficient microcrystalline single-junction solar cell deposited at 3.0 ~rn/hour.Further, micromorph tandem cells with 13% initial, or with 10.7% (confirmed by ISE-FhG Freiburg) stabilized efficiency arereported on.The realization of over 13 mA/cm2,current generation in a 1500 A thick a-Si:H top cell by combining high temperature deposi~on-and a ZnO intermediate reflector layer demonstràtes the potential to yet significantly decrease the top cell degradation in the micromorphtandem cell.
Institution: University of Neuchâtel
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2161386872