Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by in...Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.展开更多
The perylenetetracarboxylates were used as electron acceptors and electron transport materials in the preparation of plastic solar cells for the first time. Bulk heterojunction photovoltaic devices were fabricated wit...The perylenetetracarboxylates were used as electron acceptors and electron transport materials in the preparation of plastic solar cells for the first time. Bulk heterojunction photovoltaic devices were fabricated with conjugated polymer of poly(3-hexyl thiophene) (P3HT) as the donor and perylenetetracarboxylates as the acceptors. Their photovoltaic performance parameters were measured. It is found that the open circuit voltage of the device is closely related to the acceptor strength of perylenetetracarboxylate acceptors.展开更多
文摘Electruluminescence (EL) in conjugated polymers based on phenyleneethynylene and thiophene (PPE) with C—C triple bonds in their main chains were studied. It was found that the emitting wavelength will red shift by introduction of thiophene which is an electron rich moiety, the results suggest that electron rich moieties should increase effective conjugation length. Our results also show that the incorporation of thiophene units into PPE may significantly reduce the rigid rod conformation and improve the processibility.
文摘The perylenetetracarboxylates were used as electron acceptors and electron transport materials in the preparation of plastic solar cells for the first time. Bulk heterojunction photovoltaic devices were fabricated with conjugated polymer of poly(3-hexyl thiophene) (P3HT) as the donor and perylenetetracarboxylates as the acceptors. Their photovoltaic performance parameters were measured. It is found that the open circuit voltage of the device is closely related to the acceptor strength of perylenetetracarboxylate acceptors.
