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1402843-19-9

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1402843-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402843-19-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,8,4 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1402843-19:
(9*1)+(8*4)+(7*0)+(6*2)+(5*8)+(4*4)+(3*3)+(2*1)+(1*9)=129
129 % 10 = 9
So 1402843-19-9 is a valid CAS Registry Number.

1402843-19-9Relevant articles and documents

Naphthalene Diimide-Based Molecules for Efficient and Stable Perovskite Solar Cells

Cabrera-Espinoza, Andrea,Collavini, Silvia,Delgado, Juan Luis,Kosta, Ivet,Marinova, Nevena,Pascual, Jorge,Valero, Silvia

, (2020)

Naphthalene-diimide (NDI)-based molecules have shown an interesting behaviour within the field of perovskite solar cells, thanks to their promising application as electron transporting materials. In this paper, three novel NDI-containing molecules are synthesized and fully characterized, more specifically two polymers and an analogue small molecule. Each one of the NDI units contains an amine, either tertiary or quaternary, which is a moiety known for improving the conductivity. The newly synthesized compounds are suitable for the use as n-type buffer layers on the top of PC61BM, thanks to their appropriate energy levels and their solubility in polar solvents. The photovoltaic performances of the NDI-containing cells are highly comparable to those of the reference cells, which contain bathocuproine (BCP) as buffer layer. Furthermore, the stability of the NDI-containing cells is higher than that of the BCP reference.

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