%0 Journal Article %1 doi:10.1021/acs.nanolett.7b00050 %A Nam, Jae Keun %A Chai, Sung Uk %A Cha, Wonhee %A Choi, Yung Ji %A Kim, Wanjung %A Jung, Myung Sun %A Kwon, Jeong %A Kim, Dongho %A Park, Jong Hyeok %D 2017 %J Nano Letters %K enhanced incorporation performance perovskite potassium %N 0 %P null %R 10.1021/acs.nanolett.7b00050 %T Potassium Incorporation for Enhanced Performance and Stability of Fully Inorganic Cesium Lead Halide Perovskite Solar Cells %U http://dx.doi.org/10.1021/acs.nanolett.7b00050 %V 0 %X Thermally unstable nature of hybrid organic–inorganic perovskites has been a major obstacle to fabricating the long-term operational device. A cesium lead halide perovskite has been suggested as an alternative light absorber, due to its superb thermal stability. However, the phase instability and poor performance are hindering the further progress. Here, cesium lead halide perovskite solar cells with enhanced performance and stability are demonstrated via incorporating potassium cations. Based on Cs0.925K0.075PbI2Br, the planar-architecture device achieves a power conversion efficiency of 10.0\%, which is a remarkable record in the field of inorganic perovskite solar cells. In addition, the device shows an extended operational lifetime against air. Our research will stimulate the development of cesium lead halide perovskite materials for next-generation photovoltaics.

@article{doi:10.1021/acs.nanolett.7b00050, abstract = { Thermally unstable nature of hybrid organic–inorganic perovskites has been a major obstacle to fabricating the long-term operational device. A cesium lead halide perovskite has been suggested as an alternative light absorber, due to its superb thermal stability. However, the phase instability and poor performance are hindering the further progress. Here, cesium lead halide perovskite solar cells with enhanced performance and stability are demonstrated via incorporating potassium cations. Based on Cs0.925K0.075PbI2Br, the planar-architecture device achieves a power conversion efficiency of 10.0\%, which is a remarkable record in the field of inorganic perovskite solar cells. In addition, the device shows an extended operational lifetime against air. Our research will stimulate the development of cesium lead halide perovskite materials for next-generation photovoltaics. }, added-at = {2017-02-23T17:10:50.000+0100}, author = {Nam, Jae Keun and Chai, Sung Uk and Cha, Wonhee and Choi, Yung Ji and Kim, Wanjung and Jung, Myung Sun and Kwon, Jeong and Kim, Dongho and Park, Jong Hyeok}, biburl = {https://www.bibsonomy.org/bibtex/28b56d9140b999c0f2d24cc496609b64f/sere}, description = {Potassium Incorporation for Enhanced Performance and Stability of Fully Inorganic Cesium Lead Halide Perovskite Solar Cells - Nano Letters (ACS Publications)}, doi = {10.1021/acs.nanolett.7b00050}, eprint = {http://dx.doi.org/10.1021/acs.nanolett.7b00050}, interhash = {e8475047b47bc585098f3867ebb58f78}, intrahash = {8b56d9140b999c0f2d24cc496609b64f}, journal = {Nano Letters}, keywords = {enhanced incorporation performance perovskite potassium}, note = {PMID: 28170276}, number = 0, pages = {null}, timestamp = {2017-02-23T17:10:50.000+0100}, title = {Potassium Incorporation for Enhanced Performance and Stability of Fully Inorganic Cesium Lead Halide Perovskite Solar Cells}, url = {http://dx.doi.org/10.1021/acs.nanolett.7b00050}, volume = 0, year = 2017 }