Title :
Design High-Efficiency Si Nanopillar-Array-Textured Thin-Film Solar Cell
Author :
Wong, S.M. ; Yu, H.Y. ; Li, J.S. ; Zhang, G. ; Lo, Patrick G Q ; Kwong, D.L.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
fDate :
4/1/2010 12:00:00 AM
Abstract :
In this letter, the electrical performance in terms of power conversion efficiency (PCE) of Si nanopillar (SiNP)-textured thin-film solar cell is investigated via simulation, where the SiNP physical dimensions were predetermined for optimized solar-energy absorption. Several key factors affecting PCE of the solar cell, e.g., the impact of Si quality in terms of minority carrier lifetime, emitter doping level, and emitter junction depth, is highlighted, and a practical guideline to design high-efficiency SiNP-textured thin-film solar cell is thus provided. The PCE of the structure under investigation can be significantly boosted, compared with the to-date reported Si thin-film solar cell.
Keywords :
power conversion; silicon; solar cells; thin film devices; Si quality; emitter doping level; emitter junction depth; high-efficiency Si nanopillar; minority carrier lifetime; optimized solar-energy absorption; power conversion efficiency; thin-film solar cell; Power conversion efficiency (PCE); Si nanopillars (SiNPs); Si thin film; solar cell;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2010.2040062
