Surface polarity control to reinforce dopant adhesion in laser doping of textured silicon

Autor:	Takanori Okamura, Yuki Yamamoto, Takashi Fuyuki, Hideki Nishimura
Rok vydání:	2014
Předmět:	Spin coating Materials science Silicon Dopant business.industry Energy conversion efficiency Doping General Engineering General Physics and Astronomy chemistry.chemical_element Adhesion Laser law.invention chemistry law Optoelectronics Crystalline silicon business
Zdroj:	Japanese Journal of Applied Physics. 53:056501
ISSN:	1347-4065 0021-4922
DOI:	10.7567/jjap.53.056501
Popis:	Increasing energy conversion efficiency without any extra cost is required for crystalline silicon (c-Si) solar cells. Laser doping (LD) can meet these requirements because it can be performed in an ambient atmosphere at room temperature. In this study, spin-coated phosphorus silicate glass (PSG) was formed on textured c-Si as a precursor for LD. We found that after LD, the reinforcement of the interface between PSG and the Si surface improved the photovoltaic characteristics V oc and J sc. The interface was reinforced by changing the c-Si surface from hydrophobic to hydrophilic before spin coating. The reinforced interface led to a reduction in the number of surface voids and an enhancement of the transfer of dopant atoms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a0a5429de2ebc1d2cdecca2a1b75fafc https://doi.org/10.7567/jjap.53.056501 Zobrazit plný text záznamu