In this review, we highlight the recent development of organic π-functional materials as buffer layers in constructing efficient perovskite solar cells（PVSCs）. By following a brief introduction on the PVSC developm...In this review, we highlight the recent development of organic π-functional materials as buffer layers in constructing efficient perovskite solar cells（PVSCs）. By following a brief introduction on the PVSC development, device architecture and material design features, we exemplified the exciting progresses made in field by exploiting organic π-functional materials based hole and electron transport layers（HTLs and ETLs） to enable high-performance PVSCs.展开更多
In this study, we report narrow-size distribution Zn_2SnO_4（ZSO） nanoparticles, which are produced by low-temperature solution-processed used as the electron extraction layer（EEL） in the inverted polymer solar ce...In this study, we report narrow-size distribution Zn_2SnO_4（ZSO） nanoparticles, which are produced by low-temperature solution-processed used as the electron extraction layer（EEL） in the inverted polymer solar cells（i-PSCs）. Moreover, poly[（9,9-bis（30-（N,N-dimethylamino）propyl）-2,7-fluorene）-alt-2,7-（9,9-dioctylfluorene）]（PFN） is used to modify the surface properties of ZSO thin film. By using the ZSO NPs/PFN as the EEL, the i-PSCs fabricated by poly[4,8-bis（2-ethylhexyloxyl）benzo[1,2-b：4,5-b0] dithio-phene-2,6-diyl-altethylhexyl-3-fluorothithieno [3,4-b]thiophene-2-carboxylate-4,6-diyl]（PTB7） blended with（6,6）-phenyl-C_（71）-butyric acid methylester（PC_（71）BM） bulk heterojunction（BHJ） composite, exhibits a power conversion efficiency（PCE） of 8.44%, which is nearly 10% enhancement as compared with that of7.75% observed from the i-PSCs by PTB7：PC_（71）BM BHJ composite using the ZnO/PFN EEL. The enhanced PCE is originated from improved interfacial contact between the EEL with BHJ active layer and good energy level alignment between BHJ active layer and the EEL. Our results indicate that we provide a simple way to boost efficiency of i-PSCs.展开更多
Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Here...Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Herein,we report a rare rutile nanostructure,a rutile nanobundle,synthesised via a layered titanate conversion through a simple dilute HCl treatment and drying at room temperature.This rutile nanobundle shows visible light-responsive photocatalytic activity toward the oxidative decomposition of formic acid in water significantly higher than those of a commercial rutile and anatase-based benchmark TiO_(2)(P25).The rutile nanobundle,moreover,can be used as a precursor in the synthesis of a mesoporous rutile embedded with a homogeneous distribution of tiny α-Fe_(2)O_(3)nanoparticles.The α-Fe_(2)O_(3)-embedded rutile shows superior photocatalytic activity that is up to 3 times higher than a pristine rutile nanobundle and even comparable to a more costly state-of-the-art visible light-responsive photocatalyst,Au nanoparticle-supported P25.展开更多
基金financial support from the 973 program(No.2014CB643503)the National Natural Science Foundation of China(No.21474088)+2 种基金financial support from NSFC(No.21674093)the National 1000 Young Talents Program hosted by China100 Talents Program by Zhejiang University
文摘In this review, we highlight the recent development of organic π-functional materials as buffer layers in constructing efficient perovskite solar cells（PVSCs）. By following a brief introduction on the PVSC development, device architecture and material design features, we exemplified the exciting progresses made in field by exploiting organic π-functional materials based hole and electron transport layers（HTLs and ETLs） to enable high-performance PVSCs.
基金supported by National Natural Science Foundation of China (No. 51329301)
文摘In this study, we report narrow-size distribution Zn_2SnO_4（ZSO） nanoparticles, which are produced by low-temperature solution-processed used as the electron extraction layer（EEL） in the inverted polymer solar cells（i-PSCs）. Moreover, poly[（9,9-bis（30-（N,N-dimethylamino）propyl）-2,7-fluorene）-alt-2,7-（9,9-dioctylfluorene）]（PFN） is used to modify the surface properties of ZSO thin film. By using the ZSO NPs/PFN as the EEL, the i-PSCs fabricated by poly[4,8-bis（2-ethylhexyloxyl）benzo[1,2-b：4,5-b0] dithio-phene-2,6-diyl-altethylhexyl-3-fluorothithieno [3,4-b]thiophene-2-carboxylate-4,6-diyl]（PTB7） blended with（6,6）-phenyl-C_（71）-butyric acid methylester（PC_（71）BM） bulk heterojunction（BHJ） composite, exhibits a power conversion efficiency（PCE） of 8.44%, which is nearly 10% enhancement as compared with that of7.75% observed from the i-PSCs by PTB7：PC_（71）BM BHJ composite using the ZnO/PFN EEL. The enhanced PCE is originated from improved interfacial contact between the EEL with BHJ active layer and good energy level alignment between BHJ active layer and the EEL. Our results indicate that we provide a simple way to boost efficiency of i-PSCs.
文摘Because rutile TiO_(2)has a potential application of its effective utilization of indoor illumination in photocatalytic environmental purification,effort has been devoted to synthesizing advanced rutile materials.Herein,we report a rare rutile nanostructure,a rutile nanobundle,synthesised via a layered titanate conversion through a simple dilute HCl treatment and drying at room temperature.This rutile nanobundle shows visible light-responsive photocatalytic activity toward the oxidative decomposition of formic acid in water significantly higher than those of a commercial rutile and anatase-based benchmark TiO_(2)(P25).The rutile nanobundle,moreover,can be used as a precursor in the synthesis of a mesoporous rutile embedded with a homogeneous distribution of tiny α-Fe_(2)O_(3)nanoparticles.The α-Fe_(2)O_(3)-embedded rutile shows superior photocatalytic activity that is up to 3 times higher than a pristine rutile nanobundle and even comparable to a more costly state-of-the-art visible light-responsive photocatalyst,Au nanoparticle-supported P25.
