TY - GEN
T1 - Small molecule organic solar cells with enhanced near-IR photoactivity
T2 - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
AU - Armstrong, Neal R.
AU - Placencia, Diogenes
AU - Manglesdorf, Derek
AU - Wang, Weining
PY - 2010
Y1 - 2010
N2 - Small molecule organic solar cells (OPV), using donor layers based on tetravalent and trivalent metal phthalocyanines (e.g. oxo-titanium TiOPc, or chloroindium CllnPc), are discussed here. Asdeposited thin films of these Pcs undergo phase changes to form polymorphs with excellent near-IR photoactivity, accompanied by nano-texturing of the donor layers. In OPVs based on Pc/C 60heterojunctions, this results in a factor of up to 5x increase in short-circuit photocurrents (Jsc) and power conversion efficiencies. Fully optimized single junction OPVs based on these materials may ultimately approach 6% efficiencies, however their biggest impact is in providing guidance for the formation of new, solution processable forms of these materials, which retain this near-IR sensitivity and high power conversion efficiencies.
AB - Small molecule organic solar cells (OPV), using donor layers based on tetravalent and trivalent metal phthalocyanines (e.g. oxo-titanium TiOPc, or chloroindium CllnPc), are discussed here. Asdeposited thin films of these Pcs undergo phase changes to form polymorphs with excellent near-IR photoactivity, accompanied by nano-texturing of the donor layers. In OPVs based on Pc/C 60heterojunctions, this results in a factor of up to 5x increase in short-circuit photocurrents (Jsc) and power conversion efficiencies. Fully optimized single junction OPVs based on these materials may ultimately approach 6% efficiencies, however their biggest impact is in providing guidance for the formation of new, solution processable forms of these materials, which retain this near-IR sensitivity and high power conversion efficiencies.
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U2 - 10.1109/PVSC.2010.5616797
DO - 10.1109/PVSC.2010.5616797
M3 - Conference contribution
AN - SCOPUS:78650190454
SN - 9781424458912
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 503
EP - 507
BT - Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Y2 - 20 June 2010 through 25 June 2010
ER -