Title :
Photo-excited carrier transport of CuPc/C60 organic thin-film solar cells
Author :
Isobe, N. ; Miyake, T. ; Yamanaka, S. ; Saitoh, T. ; Inada, M.
Author_Institution :
Fac. of Pure & Appl. Phys., Kansai Univ., Suita, Japan
Abstract :
We prepare copper phthalocyanine (CuPc)/C60-based organic thin-film solar cells and investigate photo-excited carrier lifetime to reveal the carrier transport dynamics of the solar cells. The photo-excited carrier was generated by irradiation of pulsed laser light of Nd-YAG laser. The obtained carrier lifetime is much longer than that of estimated lifetime from the mobility of thin-film layers. This means the carrier transport cannot be described by a general carrier drift model. In addition, the carrier lifetime become short under white halogen light illumination. The results suggest that the trapping levels exist in organic layers..
Keywords :
carrier lifetime; copper compounds; fullerenes; solar cells; thin film devices; C60; Nd-YAG laser; carrier drift model; halogen light illumination; organic thin-film solar cells; photoexcited carrier lifetime; photoexcited carrier transport dynamics; pulsed laser light irradiation; thin film layer mobility; Charge carrier lifetime; Charge carrier processes; Current measurement; Lighting; Photoconductivity; Photovoltaic cells; Transient analysis; C60; CuPc; carrier lifetime; carrier transport; organic solar cell;
Conference_Titel :
Future of Electron Devices, Kansai (IMFEDK), 2015 IEEE International Meeting for
Conference_Location :
Kyoto
Print_ISBN :
978-1-4799-8614-9
DOI :
10.1109/IMFEDK.2015.7158568
