Fabrication of 20 % efficient cells using spin-on based simultaneous diffusion and dielectric anneal

Ramanathan, S.; Meemongkolkiat, Vichai; Das, Arnab; Rohatgi, A.; Koehler, Ingo

doi:10.1109/pvsc.2009.5411413

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…Single-sided spin-on doped/spray doped cells [4e16] with Al-BSF and double-sided spin-on doped cells with boron-BSF has also been reported [2,17,18]. Boron BSF has some advantages over Al-BSF [3,11].…”

Section: Introductionmentioning

confidence: 99%

c-Si solar cells formed from spin-on phosphoric acid and boric acid

et al. 2015

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a b s t r a c tThis paper reports the fabrication of c-Si based solar cells using spin-on dopants. Solar cells were developed by texturing both surfaces of the c-Si, and forming the pen junction by spin-coating the ntype dopant followed by rapid thermal processing (RTP). For back surface field formation on the rear side, a similar spin-coating step was undertaken for one cell and e-beam Al deposition for the other. In the case of double-sided spin-coated cell, simultaneous pen junction and back surface field were formed in one RTP cycle. Without using high performance features in the device, double-sided spin-on doped cell showed V oc of 600 ± 0.01 mV, J sc of 33.1 ± 0.03 mA/cm 2 , FF of 74.26 ± 0.06% and efficiency of 14.74%. As compared to single-sided spin-on doped cell, an improvement in efficiency of about 1.3% has been obtained which can be attributed to boron back surface field. Double-sided spin-on process significantly reduces thermal budget and improves throughput. Besides texturization, high efficiency features have not been used in the device. The results clearly demonstrate that c-Si based solar cells are potentially cost effective to manufacture.

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Section: Introductionmentioning

confidence: 99%

c-Si solar cells formed from spin-on phosphoric acid and boric acid

et al. 2015

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“…The body of work of Rohatgi A revolves around developing solar cells with higher efficiency than those existing in the commercial market [ 88 ]. In Ref.…”

Section: Discussionmentioning

confidence: 99%

“…In Ref. [ 88 ], the authors developed 20% solar efficient cells using Spin-on based simultaneous diffusion and dielectric anneal. While developing this solar cell, the authors suggest that using a similar cell structure could increase solar cells' efficiency by over 20% on thin wafers.…”

Section: Discussionmentioning

confidence: 99%