- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
AIP Conference Proceedings [AIP Publishing 15th International Conference on Concentrator Photovoltaic Systems (CPV-15) - Fes, Morocco (25–27 March 2019)] 15th International Conference on Concentrator Photovoltaic Systems (CPV-15) - Concentrator bifacial crystalline silicon solar cells with Al-alloyed BSF and Ag-free multi-wire metallization
摘要： We present Ag-free low-concentrator bifacial indium-fluorine-oxide (IFO)/(n+pp+)Cz-Si/indium-tin-oxide (ITO) solar cells based on: (i) a shallow phosphorus-doped n+-emitter; (ii) an easy-to-fabricate screen-printed Al-alloyed Al-p+ back-surface-field (BSF); (iii) transparent conductive IFO and ITO layers grown by ultrasonic spray pyrolysis, which act as passivating and antireflection electrode; (iv) Ag-free multi-wire metallization of copper wire attached by the low-temperature lamination method simultaneously to the front IFO layer, rear ITO layer as well as to the interconnecting ribbons arranged outside the structure using transparent conductive polymer films. For the manufacture of solar cells, we used standard commercially available SiNx/(n+pp+)Cz-Si/Al structures. After removal of the residual Al paste, the Al-p+ layer was thinned by one-sided etchback process. A number of solar cells were prepared differing in the sheet resistance of the Al-p+ layer (Rp+), which ranged from 14 ?/sq (original, non-etched Al-p+ layer) to 123 ?/sq. It was found that thinning of the Al-p+ layer (increase in Rp+) greatly improved all the parameters of solar cells. The cell with Rp+ = 81 ?/sq showed the best combination of conversion parameters. Under 1-sun front/rear illumination, the conversion efficiency of this cell is 17.5%/11.2% (against 16.0%/7.5% for the cell with Rp+ = 14 ?/sq). At 1-sun front illumination and 20/50% albedo of 1-sun illumination, the equivalent efficiency is equal to 19.9%/23.5% (against 17.7%/20.1% for the cell with Rp+ = 14 ?/sq). At a sunlight concentration ratio (kC) of 2.3–2.7 suns, the cells with Rp+ in the range 45–123 ?/sq showed approximately similar maximum front-side efficiency, 17.5–17.9%. However, the operating range of sunlight concentration ratio (kC,OR) determined as η(kC,OR) = η(kC = 1) showed a tendency to decrease from 5.8 ± 0.6 suns to 4 ± 0.5 suns with an increase in Rp+ from 14–45 ?/sq to 63–123 ?/sq.
关键词： Ag-free,multi-wire metallization,crystalline silicon,Al-alloyed BSF,bifacial,solar cells
更新于2025-09-11 14:15:04
-
[IEEE 2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO) - Kiev (2018.4.24-2018.4.26)] 2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO) - The use of Films of Metal-Containing Nanocomposites with a Silicon-Carbon Matrix in Thermal Imitators of the Components of Micro-and Nanoelectronics
摘要： The installation scheme and features of the technology for obtaining alloyed diamond-like silicon-carbon films are presented and the heating elements based on these films are created to be used as thermal imitators of micro- and nanoelectronical products and their modules with increased specific heat flux (such as microprocessors, high-frequency microcircuits of the transmit-receive modules, LEDs, lasers, etc.). The matrix of the alloyed diamond-like silicon-carbon film has an amorphous nanocomposite structure, into which the inclusions having nanodimensions and composed of chromium and its compounds with carbon are introduced. Due to the controlled change in the parameters of the process of film deposition, it is possible to obtain a given specific resistance of a doped diamond-like silicon-carbon film over a wide range: from 10-4 to 1014 (cid:525)·cm. The electrical resistance of the manufactured heating elements with dimensions of 7x30x1 mm on the basis of a diamond-like silicon-carbon film 1 (cid:541)m thick, doped with chromium, was 15 (cid:525). Using four such heating elements with a total resistance of 60 ohms made it possible to create a compact detachable thermal imitator of the electronic module with a maximum power of 806 W. Application of the developed thermal imitator accelerates the process of research and improvement of heat sink devices for products of micro- and nanoelectronics.
关键词： heating element,thermal imitator,micro- and nanoelectronical products,alloyed diamond-like carbon-graphite nanocomposite structure
更新于2025-09-09 09:28:46