TY - JOUR
T1 - Energy level alignments at poly[N-9′′-hepta-decanyl-2,7- carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′, 3′-benzothiadiazole)] on metal and polymer interfaces
AU - Seo, Jung Hwa
AU - Cho, Shinuk
AU - Leclerc, Mario
AU - Heeger, Alan J.
PY - 2011/2/8
Y1 - 2011/2/8
N2 - Energy level alignments of poly[N-9′′-hepta-decanyl-2,7- carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′, 3′-benzothiadiazole)] (PCDTBT) cast on top of Au and poly(3,4- ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) were investigated using ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS) as a function of the concentration of PCDTBT solutions. Although UPS data show similar work functions for Au and PEDOT:PSS, the hole transport barrier (h) at the PCDTBT/PEDOT:PSS interface is clearly smaller than that at the PCDTBT/Au interface. The XPS spectra show that energy level relaxation occurs at the interface between PCDTBT and electrodes.
AB - Energy level alignments of poly[N-9′′-hepta-decanyl-2,7- carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′, 3′-benzothiadiazole)] (PCDTBT) cast on top of Au and poly(3,4- ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) were investigated using ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS) as a function of the concentration of PCDTBT solutions. Although UPS data show similar work functions for Au and PEDOT:PSS, the hole transport barrier (h) at the PCDTBT/PEDOT:PSS interface is clearly smaller than that at the PCDTBT/Au interface. The XPS spectra show that energy level relaxation occurs at the interface between PCDTBT and electrodes.
UR - http://www.scopus.com/inward/record.url?scp=79751535130&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2010.12.071
DO - 10.1016/j.cplett.2010.12.071
M3 - Article
AN - SCOPUS:79751535130
SN - 0009-2614
VL - 503
SP - 101
EP - 104
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -