NDLI: Highly efficient polymer solar cells based on a universal cathode interlayer composed of metallophthalocyanine derivative with good film-forming property

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Highly efficient polymer solar cells based on a universal cathode interlayer composed of metallophthalocyanine derivative with good film-forming property

Content Provider	Semantic Scholar
Author	Zhou, Weilong Chen, Youchun Han, Jianxiong Wang, Lu Li, Fenghong Wang, Yue
Copyright Year	2015
Abstract	A new cathode interlayer (CIL) material metallophthalocyanine (MPc) derivative 1,4,8,11,15,18,22,25-octaoctyloxy-2,3,9,10,16,17,23,24-octa-[N-methyl-(3-pyridyloxy)] zinc-ylphthalocyanine iodide (1 : 8) (ZnPc(OC8H17OPyCH3I)8) was synthesized and applied in polymer solar cells (PSCs) based on PTB7:PC71BM (PTB7 = thieno[3,4-b]thiophene/benzodithiophene, PC71BM = [6,6]-phenyl C71-butyric acidmethyl ester), P3HT:PC61BM (P3HT = poly(3-hexylthiophene), PC61BM = [6,6]-phenyl C61-butyric acidmethyl ester) or PCDTBT:PC71BM (PCDTBT = poly[N-9′′-heptadecanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)]) as an active layer. As a result, power conversion efficiency (PCE) values of the PSCs were 8.52%, 4.02% and 6.88%, respectively, which are much higher than those of corresponding PSCs with the Al-only cathode. It indicates that ZnPc(OC8H17OPyCH3I)8 is a new promising candidate as a universal CIL for highly efficient PSCs. Compared to VOPc(OPyCH3I)8 (2,3,9,10,16,17,23,24-octakis-[N-methyl-(3-pyridyloxy)] vanadylphthalocyanine iodide (1 : 8)), the PSC with ZnPc(OC8H17OPyCH3I)8 as a CIL has higher short-circuit current and fill factor because ZnPc(OC8H17OPyCH3I)8 can form a better, denser, and more uniform film on the active layer than VOPc(OPyCH3I)8 as demonstrated by atomic force microscopy (AFM), energy-dispersive spectrum mapping on scan electron microscopy (SEM-EDS mapping) and contact angle measurements.
Starting Page	4547
Ending Page	4554
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1039/C4TA06601D
Volume Number	3
Alternate Webpage(s)	https://pubs.rsc.org/en/content/getauthorversionpdf/C4TA06601D
Alternate Webpage(s)	https://doi.org/10.1039/C4TA06601D
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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