The effect of the valence band tail width on the open circuit voltage of P3HT：PCBM bulk heterojunction solar cell is investigated by using the AMPS-1D computer program. An effective medium model with exponential vale...The effect of the valence band tail width on the open circuit voltage of P3HT：PCBM bulk heterojunction solar cell is investigated by using the AMPS-1D computer program. An effective medium model with exponential valence and conduction band tail states is used to simulate the photovoltaic cell. The simulation result shows that the open circuit voltage depends Iinearly on the logarithm of the generation rate and the slope depends on the width of the valence band tail. The open circuit voltage decreases with the increasing width of the band tail. The dark and light ideality factors increase with the width of the valence band tail.展开更多
In this study,the authors have shown the power conversion efficiency of flexible organic solar cells.The structure of the device is PET/ITO/PEDOT:PSS/P3HT:PCBM/AI.P3HT(poly-3-hexylthiophene).It was used as an electron...In this study,the authors have shown the power conversion efficiency of flexible organic solar cells.The structure of the device is PET/ITO/PEDOT:PSS/P3HT:PCBM/AI.P3HT(poly-3-hexylthiophene).It was used as an electron donor,PCBM([6,6]-phenyl C6 l-butyric acid methyl ester)as an electron acceptor and PEDOT:PSS used as a HIL(hole injection layer).These materials were deposited by spin coating method on the flexible substrates.Photolithography method is used to etch ITO.The electrical parameters of the fabricated cells were investigated by means of J(V),FF(fill factor),the efficiency(r/),photocurrent and IPCE measurement.It was observed that 45%of the absorbed photons are converted into current.The results obtained using etching technology by photolithography is better than that obtained in the clean room.展开更多
文摘The effect of the valence band tail width on the open circuit voltage of P3HT：PCBM bulk heterojunction solar cell is investigated by using the AMPS-1D computer program. An effective medium model with exponential valence and conduction band tail states is used to simulate the photovoltaic cell. The simulation result shows that the open circuit voltage depends Iinearly on the logarithm of the generation rate and the slope depends on the width of the valence band tail. The open circuit voltage decreases with the increasing width of the band tail. The dark and light ideality factors increase with the width of the valence band tail.
文摘In this study,the authors have shown the power conversion efficiency of flexible organic solar cells.The structure of the device is PET/ITO/PEDOT:PSS/P3HT:PCBM/AI.P3HT(poly-3-hexylthiophene).It was used as an electron donor,PCBM([6,6]-phenyl C6 l-butyric acid methyl ester)as an electron acceptor and PEDOT:PSS used as a HIL(hole injection layer).These materials were deposited by spin coating method on the flexible substrates.Photolithography method is used to etch ITO.The electrical parameters of the fabricated cells were investigated by means of J(V),FF(fill factor),the efficiency(r/),photocurrent and IPCE measurement.It was observed that 45%of the absorbed photons are converted into current.The results obtained using etching technology by photolithography is better than that obtained in the clean room.
