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1620102-53-5

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1620102-53-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620102-53-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,1,0 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1620102-53:
(9*1)+(8*6)+(7*2)+(6*0)+(5*1)+(4*0)+(3*2)+(2*5)+(1*3)=95
95 % 10 = 5
So 1620102-53-5 is a valid CAS Registry Number.

1620102-53-5Downstream Products

1620102-53-5Relevant articles and documents

Porphyrins bearing long alkoxyl chains and carbazole for dye-sensitized solar cells: Tuning cell performance through an ethynylene bridge

Wang, Yueqiang,Li, Xin,Liu, Bo,Wu, Wenjun,Zhu, Weihong,Xie, Yongshu

, p. 14780 - 14790 (2013/09/02)

Two novel porphyrin dyes (Q1 and Q2) bearing alkoxyl chains with a carbazole moiety as the electron donor have been synthesized and utilized as sensitizers for dye-sensitized solar cells (DSSCs). Compared with Q2, the molecule of Q1 has an additional ethynylene bridge between the carbazole moiety and the porphyrin framework. Photophysical and electrochemical properties of the two dyes were investigated by UV-vis, fluorescence spectroscopy and cyclic voltammetry. DFT calculations indicated that Q2 has a more twisted non-planar conformation associated with a smaller π conjugation size because of the absence of ethynylene bridge, which resulted in its better solubility and larger amount of adsorption on TiO2. Compared with Q1, Q2 showed better photovoltaic performance, with a short-circuit photocurrent density (J sc) of 11.3 mA cm-2, an open-circuit photovoltage (V oc) of 0.68 V, and a fill factor (ff) of 0.71, corresponding to an overall conversion efficiency of 5.51% under standard global AM 1.5 solar light conditions. The additional ethynylene bridge in Q1 extends the absorption bands to a longer wavelength region with the absorption threshold of 743 nm on the TiO2 film compared with that of 681 nm for Q2, but the cell efficiency is decreased to 2.22%, which may be ascribed to the worse solubility and stronger aggregation tendency resulting from the better molecule planarity. These results indicate that the extension of the absorption bands to a longer wavelength region by the introduction of an additional ethynylene bridge may result in worse solubility and more severe aggregation, and thus decrease the cell efficiency. For the design of efficient DSSC sensitizers, these contradictory effects must be fully considered and well balanced. The Royal Society of Chemistry 2013.

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