TY - JOUR
T1 - Organic bulk heterojunction photovoltaic devices incorporating 2D arrays of cuboidal silver nanoparticles
T2 - Enhanced performance
AU - Leonard, Kwati
AU - Takahashi, Yukina
AU - You, Jing
AU - Yonemura, Hiroaki
AU - Kurawaki, Junichi
AU - Yamada, Sunao
N1 - Funding Information:
We sincerely thank Professor M. Yahiro and co-worker A. Hamada for fruitful discussion. This letter was supported by a Grants-in-aid for Scientific Research (Nos. 2241028 and 24651145 for SY), Research grants from Hayashi Memorial foundation for female natural Scientists and a Fellowship from the Japan Society for the Promotion of Science (JSPS) from the Ministry of Education, Culture, Sports, Science and Technology of Japan .
PY - 2013
Y1 - 2013
N2 - We have fabricated large-area arrays of two dimensional cuboidal silver nanoparticles on ITO substrates with good control over the coverage density using the Langmuir Blodgett technique and integrated them in functional plasmonic devices with P3HT and PCBM as photoactive layer. The results demonstrate that for device structures with 13.5% surface coverage of cuboidal silver nanoparticles, IPCE and PCE increased by 20% and ∼18% respectively. We attribute the improvements to enhanced absorption of the photoactive layer and an increase in exciton generation induced by strong local electric-field of the nanoparticles as well as an increased in the conductivity of the devices.
AB - We have fabricated large-area arrays of two dimensional cuboidal silver nanoparticles on ITO substrates with good control over the coverage density using the Langmuir Blodgett technique and integrated them in functional plasmonic devices with P3HT and PCBM as photoactive layer. The results demonstrate that for device structures with 13.5% surface coverage of cuboidal silver nanoparticles, IPCE and PCE increased by 20% and ∼18% respectively. We attribute the improvements to enhanced absorption of the photoactive layer and an increase in exciton generation induced by strong local electric-field of the nanoparticles as well as an increased in the conductivity of the devices.
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U2 - 10.1016/j.cplett.2013.08.022
DO - 10.1016/j.cplett.2013.08.022
M3 - Article
AN - SCOPUS:84884818184
VL - 584
SP - 130
EP - 134
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -