<P><B>Abstract</B></P> <P>Earth-abundant and low-toxic Cu<SUB>2</SUB>ZnSnSe<SUB>4</SUB> (CZTSe) kesterite-compound semiconducting absorbers were deposited on bare Mo(600 nm) and Mo(10 nm)/MoN(50 n...
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https://www.riss.kr/link?id=A107456721
2018
-
SCI,SCIE,SCOPUS
학술저널
188-192(5쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>Earth-abundant and low-toxic Cu<SUB>2</SUB>ZnSnSe<SUB>4</SUB> (CZTSe) kesterite-compound semiconducting absorbers were deposited on bare Mo(600 nm) and Mo(10 nm)/MoN(50 n...
<P><B>Abstract</B></P> <P>Earth-abundant and low-toxic Cu<SUB>2</SUB>ZnSnSe<SUB>4</SUB> (CZTSe) kesterite-compound semiconducting absorbers were deposited on bare Mo(600 nm) and Mo(10 nm)/MoN(50 nm)/Mo(600 nm) substrates using a two-stage selenization process. The effects of the MoN barrier on the properties of the CZTSe films and device performance were investigated. X-ray diffraction, Raman spectroscopy, and scanning electron microscopy showed that the addition of a MoN barrier layer resulted in a decrease in the MoSe<SUB>2</SUB> layer thickness. Raman depth analysis showed that for the bare Mo substrates, the ZnSe phase was distributed from the middle to the surface of the absorber, whereas it was distributed at the bottom for the MoN barrier substrates. MoSe<SUB>2</SUB> formation was suppressed greatly with the MoN barrier layer. On the other hand, the current-voltage curve of the device was distorted significantly by the incorporation of the MoN barrier layer. The electro-optical properties will be discussed in conjunction with the ZnSe distribution in the absorber layers.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Sputter deposited CuZnSn precursor was selenized using Se-vapor. </LI> <LI> MoSe thickness was controlled by inserting MoN diffusion barrier. </LI> <LI> Raman verified MoN determined ZnSe distribution in CZTSe absorber film. </LI> <LI> Zn depletion near the absorber surface caused inferior solar cell performance. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>