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Title: | NOVEL METHODS AND ADVANCED MATERIALS FOR PASSIVATED CONTACT SOLAR CELLS | Authors: | TEO BOON HENG | Keywords: | Heterojunction, Poly-Silicon, Copper, Nanoparticles, ICPECVD, Screen-Printing | Issue Date: | 21-Aug-2020 | Citation: | TEO BOON HENG (2020-08-21). NOVEL METHODS AND ADVANCED MATERIALS FOR PASSIVATED CONTACT SOLAR CELLS. ScholarBank@NUS Repository. | Abstract: | Recombination-active metal/semiconductor interfaces remain a key limitation to achieving higher efficiencies for standard PERC solar cells. High quality hydrogenated amorphous intrinsic (a-Si:H(i), a-SiOx:H(i)) and doped (a-Si:H(n), a-Si:H(p)) silicon thin layers were developed using novel inductively coupled plasma enhanced chemical vapour deposition techniques and integrated into silicon heterojunction and poly-Si based solar cells. The a-Si:H layers were annealed to form poly-Si(p) and poly-Si(n) layers. High quality a-Si:H(n) layers were selected for integration into full poly-Si based passivated solar cells. The best poly-Si passivated contact solar cell achieved photoconversion efficiencies of 21.3 %. Cu nanoparticle screen printing pastes were developed as a potential alternative to expensive Ag for metallisation of passivated contact solar cells. The average specific contact resistivity of the Cu-ITO contact for the best- performing paste formulation under optimal curing conditions was 0.4 mW.cm2. | URI: | https://scholarbank.nus.edu.sg/handle/10635/188045 |
Appears in Collections: | Ph.D Theses (Open) |
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