%0 Journal Article %1 Zhang2016126 %A Zhang, Yuliang %A Yu, Wei %A Qin, Wei %A Yang, Zhou %A Yang, Dong %A Xing, Yedi %A Liu, Shengzhong (Frank) %A Li, Can %D 2016 %J Nano Energy %K VocEngineering organics perovskite %P 126 - 133 %R http://dx.doi.org/10.1016/j.nanoen.2015.08.016 %T Perovskite as an effective Voc switcher for high efficiency polymer solar cells %U http://www.sciencedirect.com/science/article/pii/S2211285515003407 %V 20 %X Abstract In the perovskite/polymer based parallel-like tandem solar cell, the distinctive absorption spectra between the organic–inorganic halide perovskite absorber (CH3NH3PbI3 (MAPI)) and poly-(diketopyrrolopyrrole-terthiophene) (PDPP3T) polymer absorber make it possible to investigate the electronic properties of charge carriers generated in either the perovskite or \PDPP3T\ layer separately. The current density–voltage (J–V) curves of the device are measured under the monochromatic ŁED\ irradiation at significantly different wavelengths to confirm the charge carrier generated in \MAPI\ offer higher Voc. The voltage biased external quantum efficiency (EQE) measurement is employed to understand the charge transport mechanism in the system. The J–V curves and \EQE\ data confirm that charge carriers generated by the photons absorbed in the perovskite layer or in \PDPP3T\ behave independently. Compared with the bulk heterojunction structure, this parallel-like tandem structure increases Voc while reducing thermalization loss, providing a possibility to break the traditional Shockley–Queisser (S–Q) limit set for single junction devices.

@article{Zhang2016126, abstract = {Abstract In the perovskite/polymer based parallel-like tandem solar cell, the distinctive absorption spectra between the organic–inorganic halide perovskite absorber (CH3NH3PbI3 (MAPI)) and poly-(diketopyrrolopyrrole-terthiophene) (PDPP3T) polymer absorber make it possible to investigate the electronic properties of charge carriers generated in either the perovskite or \{PDPP3T\} layer separately. The current density–voltage (J–V) curves of the device are measured under the monochromatic \{LED\} irradiation at significantly different wavelengths to confirm the charge carrier generated in \{MAPI\} offer higher Voc. The voltage biased external quantum efficiency (EQE) measurement is employed to understand the charge transport mechanism in the system. The J–V curves and \{EQE\} data confirm that charge carriers generated by the photons absorbed in the perovskite layer or in \{PDPP3T\} behave independently. Compared with the bulk heterojunction structure, this parallel-like tandem structure increases Voc while reducing thermalization loss, providing a possibility to break the traditional Shockley–Queisser (S–Q) limit set for single junction devices. }, added-at = {2016-10-05T09:48:05.000+0200}, author = {Zhang, Yuliang and Yu, Wei and Qin, Wei and Yang, Zhou and Yang, Dong and Xing, Yedi and Liu, Shengzhong (Frank) and Li, Can}, biburl = {https://www.bibsonomy.org/bibtex/2dc264a168e723a583351e935e2f6ddba/cgoehler}, description = {Perovskite as an effective Voc switcher for high efficiency polymer solar cells}, doi = {http://dx.doi.org/10.1016/j.nanoen.2015.08.016}, interhash = {c8ca40e2da0f629a614ed87bb46919bd}, intrahash = {dc264a168e723a583351e935e2f6ddba}, issn = {2211-2855}, journal = {Nano Energy }, keywords = {VocEngineering organics perovskite}, pages = {126 - 133}, timestamp = {2016-10-05T09:48:05.000+0200}, title = {Perovskite as an effective Voc switcher for high efficiency polymer solar cells }, url = {http://www.sciencedirect.com/science/article/pii/S2211285515003407}, volume = 20, year = 2016 }