TY - JOUR
T1 - Oriented growth of Al 2O 3
T2 - ZnO nanolaminates for use as electron-selective electrodes in inverted polymer solar cells
AU - Cheun, Hyeunseok
AU - Fuentes-Hernandez, Canek
AU - Shim, Jaewon
AU - Fang, Yunnan
AU - Cai, Ye
AU - Li, Hong
AU - Sigdel, Ajaya K.
AU - Meyer, Jens
AU - Maibach, Julia
AU - Dindar, Amir
AU - Zhou, Yinhua
AU - Berry, Joseph J.
AU - Bredas, Jean Luc
AU - Kahn, Antoine
AU - Sandhage, Kenneth H.
AU - Kippelen, Bernard
PY - 2012/4/10
Y1 - 2012/4/10
N2 - Atomic layer deposition is used to synthesize Al 2O 3:ZnO(1:x) nanolaminates with the number of deposition cycles, x, ranging from 5 to 30 for evaluation as optically transparent, electron-selective electrodes in polymer-based inverted solar cells. Al 2O 3:ZnO(1:20) nanolaminates are found to exhibit the highest values of electrical conductivity (1.2 × 10 3 S cm -1; more than six times higher than for neat ZnO films), while retaining a high optical transmittance (â¥80% in the visible region) and a low work function (4.0 eV). Such attractive performance is attributed to the structure (ZnO crystal size and crystal alignment) and doping level of this intermediate Al 2O 3:ZnO film composition. Polymer-based inverted solar cells using poly(3-hexylthiophene) (P3HT):phenyl-C 61-butyric acid methyl ester (PCBM) mixtures in the active layer and Al 2O 3:ZnO(1:20) nanolaminates as transparent electron-selective electrodes exhibit a power conversion efficiency of 3% under simulated AM 1.5 G, 100 mW cm -2 illumination.
AB - Atomic layer deposition is used to synthesize Al 2O 3:ZnO(1:x) nanolaminates with the number of deposition cycles, x, ranging from 5 to 30 for evaluation as optically transparent, electron-selective electrodes in polymer-based inverted solar cells. Al 2O 3:ZnO(1:20) nanolaminates are found to exhibit the highest values of electrical conductivity (1.2 × 10 3 S cm -1; more than six times higher than for neat ZnO films), while retaining a high optical transmittance (â¥80% in the visible region) and a low work function (4.0 eV). Such attractive performance is attributed to the structure (ZnO crystal size and crystal alignment) and doping level of this intermediate Al 2O 3:ZnO film composition. Polymer-based inverted solar cells using poly(3-hexylthiophene) (P3HT):phenyl-C 61-butyric acid methyl ester (PCBM) mixtures in the active layer and Al 2O 3:ZnO(1:20) nanolaminates as transparent electron-selective electrodes exhibit a power conversion efficiency of 3% under simulated AM 1.5 G, 100 mW cm -2 illumination.
KW - Al O :ZnO nanolaminates
KW - atomic layer deposition
KW - inverted organic solar cells
KW - oriented growth
UR - http://www.scopus.com/inward/record.url?scp=84859587934&partnerID=8YFLogxK
U2 - 10.1002/adfm.201102968
DO - 10.1002/adfm.201102968
M3 - Article
AN - SCOPUS:84859587934
SN - 1616-301X
VL - 22
SP - 1531
EP - 1538
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 7
ER -