Title :
Synergetic effect of aluminum and thermally treated porous silicon for bulk passivation of multicrystalline silicon
Author :
Bilyalov, R. ; Matic, Z. ; Poortmans, J. ; Schomann, F. ; Schmidt, W.
Author_Institution :
IMEC, Leuven, Belgium
Abstract :
Utilizing the hydrogen-rich porous surface and aluminum ability to generate vacancies a new passivation scheme is proposed for mc-Si solar cells with porous silicon as an antireflection coating and aluminum as a back contact. This combination achieves a synergetic effect with aluminum providing injection of vacancies through which hydrogen atoms from the porous silicon surface can diffuse into the mc-Si and effectively passivate the bulk
Keywords :
aluminium; antireflection coatings; elemental semiconductors; passivation; porous semiconductors; semiconductor-metal boundaries; silicon; solar cells; vacancies (crystal); Al; Al back contact; Al synergetic effect; Si:H; antireflection coating; bulk passivation; hydrogen-rich porous surface; mc-Si solar cells; multicrystalline silicon; thermally treated porous silicon; vacancies; Aluminum; Coatings; Costs; Etching; Hydrogen; Laboratories; Passivation; Photovoltaic cells; Silicon; Solar power generation;
Conference_Titel :
Photovoltaic Specialists Conference, 2000. Conference Record of the Twenty-Eighth IEEE
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-5772-8
DOI :
10.1109/PVSC.2000.915816
