TY - JOUR
T1 - Progress in stability of organic solar cells exposed to air
AU - Tavakkoli, Mohammad
AU - Ajeian, Rasul
AU - Nakhaee Badrabadi, Moosa
AU - Saleh Ardestani, Saeed
AU - Feiz, Sayid Mohammad Hasan
AU - Elahi Nasab, Komeil
PY - 2011/7
Y1 - 2011/7
N2 - In this paper, the stability of small-molecule organic solar cells based on copper phthalocyanine (CuPc) and fullerene (C60) is investigated. The use of silver instead of aluminum as the metal electrode in these solar cells, with smaller grain size and grain boundaries as well as with more uniform grain size distribution in the film, results in significant improvement in the lifetime of the devices. The substantial role of silver in the protection of the cells against permeation of oxygen and/or water molecules into the organic thin films is confirmed. Substitution of a thin buffer layer (70 Å) of bathophenanthroline (Bphen) for bathocuproine (BCP), sandwiched between C 60 and the cathode, makes considerable progress in the lifetime of the device.
AB - In this paper, the stability of small-molecule organic solar cells based on copper phthalocyanine (CuPc) and fullerene (C60) is investigated. The use of silver instead of aluminum as the metal electrode in these solar cells, with smaller grain size and grain boundaries as well as with more uniform grain size distribution in the film, results in significant improvement in the lifetime of the devices. The substantial role of silver in the protection of the cells against permeation of oxygen and/or water molecules into the organic thin films is confirmed. Substitution of a thin buffer layer (70 Å) of bathophenanthroline (Bphen) for bathocuproine (BCP), sandwiched between C 60 and the cathode, makes considerable progress in the lifetime of the device.
KW - BCP
KW - Bphen
KW - Organic solar cells
KW - Stability
UR - http://www.scopus.com/inward/record.url?scp=79955465258&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2011.01.029
DO - 10.1016/j.solmat.2011.01.029
M3 - Article
AN - SCOPUS:79955465258
SN - 0927-0248
VL - 95
SP - 1964
EP - 1969
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
IS - 7
ER -
