Efficiency enhancement in mesogenic-phthalocyanine-based solar cells with processing additives

Bulk heterojunction (BHJ) solar cells, fabricated by spin casting processes, with phase-separated small molecules including a phthalocyanine derivative, 1,4,8,11,15,18,22,25-octahexylphthalocyanine (C6PcH2), and a fullerene derivative, 1-(3-methoxy-carbonyl)-propyl-1-1-phenyl-(6,6)C61 (PCBM), have b...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2012-12, Vol.101 (26)
Main Authors: Duy Dao, Quang, Hori, Tetsuro, Fukumura, Kaoru, Masuda, Tetsuya, Kamikado, Toshiya, Fujii, Akihiko, Shimizu, Yo, Ozaki, Masanori
Format: Article
Language:English
Subjects:
Crystallization
Derivatives
Energy conversion efficiency
Heterojunctions
Phase separation
Photovoltaic cells
Solar cells
Solvents
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Bulk heterojunction (BHJ) solar cells, fabricated by spin casting processes, with phase-separated small molecules including a phthalocyanine derivative, 1,4,8,11,15,18,22,25-octahexylphthalocyanine (C6PcH2), and a fullerene derivative, 1-(3-methoxy-carbonyl)-propyl-1-1-phenyl-(6,6)C61 (PCBM), have been demonstrated to have a power conversion efficiency exceeding 4.1%. The C6PcH2:PCBM BHJ surface morphology and the phase separation have been controlled by utilizing processing additives in various solvents. The effects of the processing additives on the crystallization of the discotic C6PcH2 columns in hexagonal structures have been discussed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4773519