%0 Journal Article %1 li2018a %A Li, Dan %A Xiao, Zuo %A Wang, Shizhe %A Geng, Xinjian %A Yang, Shangfeng %A Fang, Junfeng %A Yang, Huai %A Ding, Liming %D 2018 %I Wiley Online Library %J Advanced Energy Materials %K active_layer copolymer high_PCE new_material orgnaic %R 10.1002/aenm.201800397 %T A Thieno3,2‐cIsoquinolin‐5(4H)‐One Building Block for Efficient Thick‐Film Solar Cells %U https://doi.org/10.1002/aenm.201800397 %X An aromatic lactam acceptor unit, thieno3,2‐cisoquinolin‐5(4H)‐one (TIQ), is developed. Compared with its analogues, dithieno3,2‐b:2′,3′‐dpyridin‐5(4H)‐one (DTP) and phenanthridin‐6(5H)‐one (PN), TIQ shows its advantage in constructing donor–acceptor (D–A) copolymers for efficient solar cells. TIQ‐based D–A copolymer PTIQ4TFBT delivers a power conversion efficiency (PCE) of 10.16% in polymer:fullerene solar cells, while those based on DTP and PN copolymers, PDTP4TFBT and PPN4TFBT, afford PCEs around 8.5%. The higher performance of PTIQ4TFBT:PC71BM solar cells originates from enhanced short‐circuit current density (Jsc) and fill factor (FF), because of favorable morphology, less bimolecular recombination, and balanced charge transport in the active layer. Moreover, the performance for PTIQ4TFBT:PC71BM solar cells is less sensitive to active layer thickness than PDTP4TFBT:PC71BM and PPN4TFBT:PC71BM solar cells. Over 8% PCEs can be obtained from PTIQ4TFBT:PC71BM solar cells when the active layer thickness is over 500 nm. A thieno3,2‐cisoquinolin‐5(4H)‐one building block is designed. PTIQ4TFBT:PC71BM solar cells present less bimolecular recombination and balanced charge transport, giving a power conversion efficiency (PCE) of 10.16% with an active layer thickness of 267 nm. Over 8% PCEs can be obtained with active layer thicknesses over 500 nm.

@article{li2018a, abstract = {An aromatic lactam acceptor unit, thieno[3,2‐c]isoquinolin‐5(4H)‐one (TIQ), is developed. Compared with its analogues, dithieno[3,2‐b:2′,3′‐d]pyridin‐5(4H)‐one (DTP) and phenanthridin‐6(5H)‐one (PN), TIQ shows its advantage in constructing donor–acceptor (D–A) copolymers for efficient solar cells. TIQ‐based D–A copolymer PTIQ4TFBT delivers a power conversion efficiency (PCE) of 10.16% in polymer:fullerene solar cells, while those based on DTP and PN copolymers, PDTP4TFBT and PPN4TFBT, afford PCEs around 8.5%. The higher performance of PTIQ4TFBT:PC71BM solar cells originates from enhanced short‐circuit current density (Jsc) and fill factor (FF), because of favorable morphology, less bimolecular recombination, and balanced charge transport in the active layer. Moreover, the performance for PTIQ4TFBT:PC71BM solar cells is less sensitive to active layer thickness than PDTP4TFBT:PC71BM and PPN4TFBT:PC71BM solar cells. Over 8% PCEs can be obtained from PTIQ4TFBT:PC71BM solar cells when the active layer thickness is over 500 nm. A thieno[3,2‐c]isoquinolin‐5(4H)‐one building block is designed. PTIQ4TFBT:PC71BM solar cells present less bimolecular recombination and balanced charge transport, giving a power conversion efficiency (PCE) of 10.16% with an active layer thickness of 267 nm. Over 8% PCEs can be obtained with active layer thicknesses over 500 nm.}, added-at = {2018-07-05T13:42:15.000+0200}, author = {Li, Dan and Xiao, Zuo and Wang, Shizhe and Geng, Xinjian and Yang, Shangfeng and Fang, Junfeng and Yang, Huai and Ding, Liming}, biburl = {https://www.bibsonomy.org/bibtex/296d13b6360418337aaa07e0378694938/bretschneider_m}, doi = {10.1002/aenm.201800397}, interhash = {5fd0b1f6e9ab9bbe15a0321df8ce2ecf}, intrahash = {96d13b6360418337aaa07e0378694938}, issn = {1614-6832}, journal = {Advanced Energy Materials}, keywords = {active_layer copolymer high_PCE new_material orgnaic}, month = {2}, publisher = {Wiley Online Library}, timestamp = {2018-07-05T13:42:15.000+0200}, title = {A Thieno[3,2‐c]Isoquinolin‐5(4H)‐One Building Block for Efficient Thick‐Film Solar Cells}, url = {https://doi.org/10.1002/aenm.201800397}, year = 2018 }