Bulk-Heterojunction Thin-Film Solar Cells Utilizing Miscible Binary Donor Materials of Liquid Crystalline Phthalocyanine and its Analogue

Small-molecule bulk-heterojunction solar cells utilizing a binary-blended donor material composed of a liquid crystalline phthalocyanine and its analogue have been studied. The short-circuit current density (Jsc) and power conversion efficiency (PCE) of the solar cells utilizing the blended donor ma...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-11, Vol.924 (1), p.12003
Main Authors: Fujita, Kento, Nakagawa, Dai, Nakano, Chika, Dao, Quang-Duy, Fujii, Akihiko, Ozaki, Masanori
Format: Article
Language:English
Subjects:
Carrier transport
Circuits
Crystal structure
Crystallinity
Donor materials
Energy conversion efficiency
Heterojunctions
Liquid crystals
Optical properties
Photovoltaic cells
Physics
Short circuit currents
Solar cells
Transport properties
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Summary:Small-molecule bulk-heterojunction solar cells utilizing a binary-blended donor material composed of a liquid crystalline phthalocyanine and its analogue have been studied. The short-circuit current density (Jsc) and power conversion efficiency (PCE) of the solar cells utilizing the blended donor material with an optimized blend ratio reached 11.6 mA/cm2 and 4.8%, respectively, which were superior to those of organic solar cells utilizing each donor material. The improvement of Jsc and PCE has been discussed from the viewpoints of the crystal structure, optical and carrier transport properties of the blended donor material.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/924/1/012003