TY - JOUR
T1 - Improving the performance of CdS/P3HT hybrid inverted solar cells by interfacial modification
AU - Zhong, Min
AU - Yang, Dong
AU - Zhang, Jian
AU - Shi, Jingying
AU - Wang, Xiuli
AU - Li, Can
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China under Grant no. 20904057 and Solar Energy Initiative of the Knowledge Innovation Program of the Chinese Academy of Sciences under Grant no. KGCX2–YW–395 .
PY - 2012/1
Y1 - 2012/1
N2 - This paper reports the effects of interfacial modification on the performance of the inverted hybrid solar cells consisting of P3HT as an electron donor and CdS nanoporous film as an electron acceptor. The device performance can be enhanced by grafting N719 dye molecules onto the surface of CdS. By optimizing the P3HT thickness, the power conversion efficiency (PCE) of the CdS/N719/P3HT hybrid solar cell is increased to 1.06% from 0.06% of the CdS/P3HT hybrid solar cell, with a champion device efficiency of 1.31% under AM1.5G of 100 mW/cm2 intensity. It is revealed that the interface modification by N719 dye can promote exciton dissociation between the two components, reduce interfacial charge recombination, and form a dipole layer at the interface that modulated the interface energy level, which enhances the open circuit voltage and short circuit current coinstantaneously. This work may provide a general method to achieve high performance organicinorganic hybrid solar cells by interfacial modification.
AB - This paper reports the effects of interfacial modification on the performance of the inverted hybrid solar cells consisting of P3HT as an electron donor and CdS nanoporous film as an electron acceptor. The device performance can be enhanced by grafting N719 dye molecules onto the surface of CdS. By optimizing the P3HT thickness, the power conversion efficiency (PCE) of the CdS/N719/P3HT hybrid solar cell is increased to 1.06% from 0.06% of the CdS/P3HT hybrid solar cell, with a champion device efficiency of 1.31% under AM1.5G of 100 mW/cm2 intensity. It is revealed that the interface modification by N719 dye can promote exciton dissociation between the two components, reduce interfacial charge recombination, and form a dipole layer at the interface that modulated the interface energy level, which enhances the open circuit voltage and short circuit current coinstantaneously. This work may provide a general method to achieve high performance organicinorganic hybrid solar cells by interfacial modification.
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U2 - 10.1016/j.solmat.2011.09.041
DO - 10.1016/j.solmat.2011.09.041
M3 - Article
AN - SCOPUS:80855131572
SN - 0927-0248
VL - 96
SP - 160
EP - 165
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
IS - 1
ER -
