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High open circuit voltage (VOC) is a potential benefit of thin silicon solar cells. A new thin silicon solar cell structure is proposed using silicon-on-insulator (SOI) technology that investigates the properties of high voltage in thin silicon designs with an epitaxial emitter. Key design parameters are low rear and front surface recombination, low dark current and efficient light trapping. We propose...
The interdigitated back contact silicon heterojunction (IBC-SHJ) solar cell requires a low temperature front surface passivation/anti-reflection structure. Conventional silicon surface passivation using SiO2 or a-SiNx is performed at temperature higher than 400??C, which is not suitable for the IBC-SHJ cell. In this paper, we propose a PECVD a-Si:H/a-SiNx:H/a-SiC:H stack structure to passivate the...
Solution-processed spherical surface textures are demonstrated as a cost-effective antireflection coating on commercial amorphous Si solar cells. The spherical textures are formed with a monolayer of silica microspheres by convective coating, followed by a spin-on-glass film. It is found that the spherical texture reduces the reflectance of the cells in a broad wavelength range of 400 - 1,200 nm....
In this work, we have studied the scalability of our fabrication process for heterojunction solar cells up to 148.5 cm2 total area. Double heterojunction devices were fabricated on both n- and p-type textured substrates using only doped (n) and (p) a-Si:H layers. ITO was used as anti-reflective coating and evaporated Aluminum as the metallic back contact. Finally, an Ag grid was screen-printed at...
The following topics were dealt with: novel material and devices of solar cell; CIGS based thin film PV modules; II-VI materials-deposition and manufacturing; II-VI devices; thin film solar cells; photovoltaic devices; photovoltaic concentrator; III-V solar cells; design and fabrication of solar cells; crystallisation, defects and passivation of crystalline silicon solar cells; amorphous, nanocrystalline/microcrystalline,...
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