NDLI: Investigation of conductivity of adhesive layer including indium tin oxide particles for multi-junction solar cells

Content Provider	Springer Nature Link
Author	Yoshidomi, Shinya Hasumi, Masahiko Sameshima, Toshiyuki
Copyright Year	2014
Abstract	We report connection conductivity ( $$C_{\rm c}$$ ) of adhesive which including $$\hbox {In}_2\hbox {O}_3$$ – $$\hbox {SnO}_2$$ (ITO) particles developed for fabrication of stacked-type-multi-junction solar cells. The commercial 20- $$μ $$ m sized ITO particles were heated in vacuum at temperature ranging from 800 to 1,300 $$^{\circ }{\rm C}$$ for 10 min to increase $$C_{\rm c}$$ . 6.2 wt% ITO particles were dispersed in commercial Cemedine adhesive gel to form 100 samples structured with n-type Si/adhesive/n-type Si (n-Si sample) and p-type Si/adhesive/p-type Si (p-Si sample). Current density as a function of voltage (J–V) characteristics gave $$C_{\rm c}$$ . It ranged from 4.3 to 1.0 S/cm $$^2$$ for the n-Si sample with 800 $$^{\circ }{\rm C}$$ heat-treated ITO particles. Its standard deviation was 0.59 S/cm $$^2$$ . On the other hand, it ranged from 2.0 to 0.6 S/cm $$^2$$ for the p-Si sample with 800 $$^{\circ }{\rm C}$$ heat-treated ITO particles. Its standard deviation was 0.22 S/cm $$^2$$ . The distribution of $$C_{\rm c}$$ mainly resulted from contact efficiency of ITO particles to substrate. We theoretically estimated that present $$C_{\rm c}$$ achieved a low loss of the power conversion efficiency ( $$E_{\rm ff}$$ ) lower than 0.3 % in the application of fabrication of multi-junction solar cell with an intrinsic $$E_{\rm ff}$$ of 30 % and an open circuit voltage above 1.9 V.
Starting Page	2113
Ending Page	2118
Page Count	6
File Format	PDF
ISSN	09478396
Journal	Applied Physics A
Volume Number	116
Issue Number	4
e-ISSN	14320630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-04-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Multi-junction solar cell Indium tin oxide X-ray diffraction Transparent conductive layer Condensed Matter Physics Optical and Electronic Materials Nanotechnology Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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