TY - JOUR
T1 - Sputtered ZnO seed layer enhances photovoltaic behavior in hybrid ZnO/P3HT solar cells
AU - Whittaker-Brooks, Luisa
AU - Mativetsky, Jeffrey M.
AU - Woll, Arthur
AU - Smilgies, Detlef
AU - Loo, Yueh Lin
N1 - Funding Information:
This work was supported by ONR’s Photovoltaic Program ( N00014-11-10328 ) and an NSF-sponsored MRSEC through the Princeton Center for Complex Materials ( DMR-0819860 ), which also provided access to the PRISM Imaging and Analysis Center. GIXD experiments were conducted at CHESS, which is supported by NSF and NIH/NIGMS under award DMR-0936384 .
PY - 2013
Y1 - 2013
N2 - We investigated the characteristics of inverted solar cells comprising bulk-heterojunction active layers of ZnO nanowire arrays and poly(3-hexylthiophene), P3HT. By utilizing a sputtered ZnO seed layer, we are able to grow vertically oriented ZnO nanowire arrays homoepitaxially. Unlike the ZnO nanowires that are grown on sol-gel derived seed layers, our nanowires are more uniform in their dimensions and spatial distribution. This sputtered seed layer also acts as the hole-blocking layer when these nanowire arrays are incorporated in solar cells; hybrid solar cells comprising these nanowires and P3HT exhibit power conversion efficiencies of 1.6%. To date, this is the highest efficiency observed for ZnO nanowire arrays:P3HT hybrid solar cells.
AB - We investigated the characteristics of inverted solar cells comprising bulk-heterojunction active layers of ZnO nanowire arrays and poly(3-hexylthiophene), P3HT. By utilizing a sputtered ZnO seed layer, we are able to grow vertically oriented ZnO nanowire arrays homoepitaxially. Unlike the ZnO nanowires that are grown on sol-gel derived seed layers, our nanowires are more uniform in their dimensions and spatial distribution. This sputtered seed layer also acts as the hole-blocking layer when these nanowire arrays are incorporated in solar cells; hybrid solar cells comprising these nanowires and P3HT exhibit power conversion efficiencies of 1.6%. To date, this is the highest efficiency observed for ZnO nanowire arrays:P3HT hybrid solar cells.
KW - Hybrid solar cells
KW - Sputtered seed layer
KW - Uniform nanowire growth
KW - ZnO nanowire arrays
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U2 - 10.1016/j.orgel.2013.09.023
DO - 10.1016/j.orgel.2013.09.023
M3 - Article
AN - SCOPUS:84888296394
SN - 1566-1199
VL - 14
SP - 3477
EP - 3483
JO - Organic Electronics
JF - Organic Electronics
IS - 12
ER -