博士生导师

赵晋津

发布时间:2023-11-28   浏览次数:0


赵晋津,教授,博士生导师,薄膜太阳能电池材料与器件河北省工程研究中心副主任,河北省能量转换材料与器件技术创新中心副主任,全国青联委员,燕赵青年科学家,河北省杰出青年,河北省优秀青年,河北省青年拔尖人才,石家庄市第十四届政协委员,九三学社石家庄市委青工委主任和科技专委会主任,九三学社石家庄市委委员,河北省第十二届青年联合会委员,河北省侨联专家委员会委员,河北省光学学会理事。

个人基本情况:

研究工作发表在Nature(重要贡献作者)、Nature Communications(2篇 通讯作者)、Advanced  Materials(2篇 通讯作者)、Advanced  Functional Materials(3篇 通讯作者)等重要期刊上70余篇;已授权国家发明专利10项,主持国家自然科学基金3项、国家重点基础研究发展计划(973计划)前期专项子课题、河北省自然科学基金、河北省教育厅重点项目等20项。获得中国新锐科技卓越影响奖、中国电介质物理优秀青年奖、河北省青年科技奖、河北省三八红旗手、河北省青年五四奖章提名奖、两次获河北省优秀硕士毕业论文指导教师、河北省三三三人才第三层次专家等荣誉与称号,深圳市自然科学二等奖。参与承办多次国际国内学术研讨会,兼任《物理化学学报》、《Nano Materials Science》、《EcoMat》和《Rare Metals》青年编委,《无机材料学报》青年编委和“新型钙钛矿材料与光电器件”专辑主编,《中南大学学报(英文版)》青年编委以及“交叉学科”专刊主编。欢迎报考我们团队硕士、博士研究生,常年招聘博士后研究人员,热烈欢迎您的到来。

联系方式:Email: jinjinzhao2023@hebtu.edu.cn

ORCID iD: https://orcid.org/0000-0003-1620-3040

研究领域:

(1)新型高效钙钛矿太阳能电池制备及其光电转换性能研究;

(2)柔性高效钙钛矿薄膜阻变存储器和晶体管研究;

(3)安全稳定高效能量转换纳米示踪载药体系的医学应用研究;

(4)化学光电力多场耦合效应对光电/电光/全光转换性能影响研究。

教育与研究经历:

2022/11 ——至今,河北师范大学 化学与材料科学学院,教授,博士生导师

                 薄膜太阳能电池材料与器件河北省工程研究中心 副主任

                 河北省能量转换材料与器件技术创新中心 副主任;

2010/08 - 2022/10, 石家庄铁道大学 教授,博导,低碳高效能量转换材料与器件研究所 所长;

2019/07 -2019/10, 香港城市大学,访问学者;

2015/08 -2016/08, 美国华盛顿大学,访问学者;

2005/09 -2010/07, 中国科学院上海硅酸盐研究所,硕博连读获工学博士,

导师:施剑林院士,陈航榕研究员;

2007/10 -2008/10, 德国马普学会胶体与界面研究所,访问学者;

2005/09 -2006/07, 中国科技大学,硕士专业基础课程学习;

2001/09 -2005/07, 河北科技大学,无机材料科学与工程,获工学学士;

主持科研项目:

1.       河北省自然科学基金-燕赵青年科学家,“集成钙钛矿光电转换系统关键技术研究”,B2023205040,主持,2023.01-2027.12。

2.       河北省自然科学基金-京津冀基础研究合作专项,“纳米载体递送mRNA重编程T细胞用于B细胞淋巴瘤治疗”,主持,2022.10-2025.09。

3.       国家自然科学基金(NSAF联合项目),“柔性钙钛矿光伏信息存储电池及能量转换性能研究”,No. U2130128,主持,2022.01-2024.12。

4.       国家自然科学基金(面上项目),“钙钛矿金属有机卤化物太阳能电池材料的力电光多场耦合效应及其对光伏转换性能的影响”,No. 11772207,主持,2018.01-2021.12。

5.       国家自然科学基金(青年项目),“多级孔TiO2︱TiZnO3@QDs︱ZnO叠层薄膜及光电转换性能研究”,No. 51102172,主持,2012.01-2014.12。

6.       国家重点基础研究发展计划(973计划)前期专项项目,“真空共蒸发法制备无铅钙钛矿薄膜太阳电池及载流子输运机制研究”,2014CB260405,子课题主持,2014.10-2016.12。

7.       河北省自然科学基金杰出青年项目,“钙钛矿太阳能电池力电光多场耦合效应研究”,A2019210204,30万,主持,2019.01-2021.12。

8.       河北省自然科学基金优秀青年项目,“多级孔ZnO@QDs | ABX3钙钛矿太阳能电池制备及其载流子输运机理研究”,E2016210093,主持,2016.01-2018.12。

9.       河北省青年拔尖人才支持计划项目,河北省委组织部、教育厅,冀字[2016]10号文件,主持,2016.01-2021.12。

10.    中央引导地方科技发展资金项目,“高效柔性光伏信息存储电池关键技术研究”,216Z4302G,主持,2021.03-2024.03。

部分代表性论文:

1.       Shulin Chen,† Changwei Wu,†Bo Han, Zhetong Liu, Zhou Mi, Weizhong Hao, Jinjin Zhao,* Xiao Wang,*Qing Zhang, Kaihui Liu, Junlei Qi, Jian Cao, Jicai Feng, Dapeng Yu, JiangyuLi,* Peng Gao,* Atomic-scale imaging of CH3NH3PbI3structure and its decomposition pathway, NatureCommunications, 2021, 12, 5516.(共同通讯作者,SCI收录,IF=16.6)

2.       Shulin Chen,† Xiaowei Zhang,†Jinjin Zhao,* Ying Zhang, Guoli Kong, Qian Li, Ning Li, Yue Yu, Ningan Xu,Jingmin Zhang, Kaihui Liu, Qing Zhao, Jian Cao, Jicai Feng, Xinzheng Li, JunleiQi,* Dapeng Yu, Jiangyu Li,* and Peng Gao,* Atomic scaleinsights into structure instability and decomposition pathway of methylammonium lead iodide perovskite, NatureCommunications, 2018, 9(1), 4807.(共同通讯作者,SCI收录,IF=16.6)

3.       Ming-Min Yang,* Zheng-Dong Luo, Zhou Mi,Jinjin Zhao, Sharel Pei E, Marin Alexe,* Piezoelectric and pyroelectriceffects induced by interface polar symmetry,Nature, 2020, 584, 377-381.(重要贡献作者,SCI收录,IF=64.8)

4.       Shulin Chen†, Ying Zhang†,Xiaowei Zhang, Jinjin Zhao,* Zewen Zhao, Xiao Su, Ze Hua, Jing minZhang, Jian Cao, Jicai Feng, Xiao Wang, Xinzheng Li, Junlei Qi,* Jiangyu Li,*Peng Gao,* General decomposition pathway of organic inorganic hybridperovskites through an intermediate superstructure and its suppressionmechanism, Advanced Materials,2020, 32, 2001107.(共同通讯作者, SCI收录,IF=29.4)

5.       Guozhan Xia,† Boyuan Huang,†Ying Zhang,† Xingyu Zhao, Chen Wang, Chunmei Jia, Jinjin Zhao,*Weiqiu Chen* and Jiangyu Li,* Nanoscale Insights into Photovoltaic Hysteresisin Triple-cation Mixed-halide Perovskite: Resolving the Role of Polarizationand Ionic Migration, AdvancedMaterials, 2019, 31,1902870.(共同通讯作者, SCI收录,IF=29.4)

6.       Huajun Guo,† Shenghui Yi,†Shuai Yang,† Yinan Jiao, Shengjian Qin, Rui Li, Ye Wang, Hao Li,Yuanhua Xia, Yang Zhang, Zishang Liang, Rongrong Yan, Huan Liu, Jinjin Zhao,* Structural Symmetry Impressing Carrier Dynamics of HalidePerovskite. Advanced FunctionalMaterials, 2023,2214180.(独立通讯作者,SCI收录,IF=19.0)

7.       Xiaomin Liu, Shuxia Ren,* Zhenhua Li,Jiajun Guo, Shenghui Yi, Zheng Yang, Weizhong Hao, Rui Li, Jinjin Zhao*,Flexible Transparent High-Efficiency Photoelectric Perovskite ResistiveSwitching Memory, Advanced FunctionalMaterials, 2022, 2202951.(最后通讯作者, SCI收录,IF=19.0)

8.       Yinan Jiao,† Shenghui Yi,†Hanwen Wang,† Bing Li, Weizhong Hao, Lulu Pan, Yan Shi, Xiangyu Li,Pengfei Liu, He Zhang, Cunfa Gao, Jinjin Zhao*and Jian Lu*,Strain Engineering of Metal Halide Perovskites on Coupling AnisotropicBehaviors, Advanced FunctionalMaterials, 2021,31(4), 2006243.(共同通讯作者, SCI收录,IF=19.0)

9.       Shulin Chen, Ying Zhang, Jinjin Zhao,*Zhou Mi, Jingmin Zhang, Jian Cao, Jicai Feng, Guanglei Zhang, Junlei Qi,*Jiangyu Li,* Peng Gao,* Transmission electron microscopy of organic-inorganichybrid perovskites: myths and truths, ScienceBulletin, 2020, 65, 1643-1649.(共同通讯作者, SCI收录,IF=18.9)

10.    Jinjin Zhao,* Guoli Kong, Shulin Chen, Qian Li,Boyuan Huang, Zhenghao Liu, Xingyuan San, Yujia Wang, Chen Wang, Yunce Zhen,Haidan Wen, Peng Gao, Jiangyu Li,* Single crystalline CH3NH3PbI3self-grown on FTO/TiO2 substrate for high efficiency perovskitesolar cells, Science Bulletin,2017, 62(17), 1173-1176.(第一/共同通讯作者,SCI收录,IF=18.9)

11.    GuangleiZhang,† Yanqing Xu,† Shuai Yang,† Shuxia Ren,Yinan Jiao, Ye Wang, Xuena Ma, Hao Li, Weizhong Hao, Caili He, Xiaomin Liu, andJinjin Zhao,* Robust Mica Perovskite Photoelectric Resistive SwitchingMemory, Nano Energy, 2023,106, 108074.(独立通讯作者, SCI收录,IF=17.6)

12.    ChunmeiJia,† Xingyu Zhao,† Yu-Hong Lai, Jinjin Zhao,* Pei-Chun Wang, De-Shiang Liou, Peng Wang, ZhenghaoLiu, Wenhua Zhang, Wei Chen, Ying-Hao Chu* and Jiangyu Li* Highly flexible,robust, stable and high efficiency perovskite solar cells enabled by van der Waalsepitaxy on mica substrate, Nano Energy, 2019, 60, 476-484.(共同通讯作者, SCI收录,IF=17.6)

13.    ShengjianQin†, Shenghui Yi†, Yanqing Xu†, Zhou Mi†,Jinjin Zhao,* Xiaobao Tian, Huajun Guo, Yinan Jiao, Guanglei Zhang*, andJian Lu*, Ferroic Alternation in Methylammonium Lead Triiodide Perovskite,EcoMat, 2021, 3, e12131.(共同通讯作者, SCI收录,IF=14.6)

14.    ZhigangYang, Shuqin Zhang, Tianqing Sheng, Xinran Lv, Xuguang Wei, Shengjian Qin,Shenghui Yi, Jinjin Zhao*, Phase engineering of inorganic halide Cs-Pb-Brperovskites for advanced energy conversion,Journal of Materials Chemistry A, 2023, 11, 22020-22040.(独立通讯作者,SCI收录,IF=11.9)

15.    Jinjin Zhao,*,† Liyu Wei,† Chunmei Jia,† Hao Tang, Xiao Su, Yun Ou,Zhenghao Liu, Chen Wang, Xingyu Zhao, Hongyun Jin, Peng Wang, Gang Yu, GuangleiZhang, and Jinxi Liu, Metallic tin substitution of organic lead perovskite filmfor efficient solar cells,Journal ofMaterials Chemistry A, 2018, 6, 20224-20232. (第一/共同通讯作者, SCI收录,IF=11.9)

16.    ShuaiYang, Yuxin Xu, Zikun Hao, Shengjian Qin, Runpeng Zhang, Yu Han, Liwei Du, ZiyiZhu, Anning Du, Xin Chen, Hao Wu, Bingbing Qiao, Jian Li, Yi Wang, BingchenSun, Rongrong Yan, Jinjin Zhao*, Recent Advances in High-EfficiencyPerovskite for Medical Sensors, ActaPhysico-Chimica Sinica,2023, 39(5), 2211025.(独立通讯作者,SCI收录,IF=10.9)

17.    ShuxiaRen, Zheng Yang, Shuailing An, Jie Meng, Xiaomin Liu, Jinjin Zhao*,High-Efficiency Photoelectric Regulation of Resistive Switching Memory inPerovskite Quantum Dots.ActaPhysico-Chimica Sinica,2023, 39, 2301033. (独立通讯作者,SCI收录,IF=10.9)

18.    BingLi,† Yinan Jiao,† Shengjian Qin,† Ye Wang,Huan Liu, Rui Li, Weizhong Hao, Hao Li, Yuanhua Xia, Xiangyu Li,* JinjinZhao*, Photo-induced Strain in Organometal Halide Perovskites, The Journal of Physical Chemistry Letters,2023, 14, 1343-1353.(最后通讯作者,SCI收录,IF=6.888)

19.    JinjinZhao*,Wenhua Zhang*, Unfolding the Mysterious Scroll of Novel PhotoelectricPerovskite Step by Step, Journal ofInorganic Materials, 2023, 38(9), 989-990. (第一/共同通讯作者,SCI收录,IF=1.7)

20.    HuajunGuo, Shuailing An, Jie Meng, Shuxia Ren, Wenwen Wang, Zishang Liang, Jiayu Song,Hengbin Chen, Hang Su, Jinjin Zhao*, Research Progress of PhotoelectricResistive Switching Mechanism of Halide Perovskite, Journal of InorganicMaterials, 2023, 38(9), 1005-1016.(独立通讯作者,SCI收录,IF=1.7)

21.    Ye Wang,Yinan Jiao, Junxia Guo, Huan Liu, Rui Li, Zixuan Shang, Shidong Zhang, Yonghao Wang,Haichuan Geng, Denglu Hou, Jinjin Zhao*, Optimization of InterfacialEngineering of Perovskite Solar Cells, Journalof Inorganic Materials, 2023, 38(11), 1323-1330.(独立通讯作者,SCI收录,IF=1.7)

22.  Peng Wang, Jinjin Zhao,* Jinxi Liu, Liyu Wei, Zhenghao Liu, LihaoGuan, Guozhong Cao, Stabilization of organometal halide perovskite films by SnO2coating with inactive surface hydroxyl groups on ZnO nanorods. Journal of Power Sources,2017, 339, 51-60. (共同通讯作者,SCI收录,IF=9.2)

23.    YangZhang, Tianya Chen, Shenghui Yi,* Xiaofeng Zhang, Yinan Jiao, Jian Lu,* JinjinZhao*, Emerging Intelligent Manufacturing of Metal Halide Perovskites, Advanced Materials Technologies, 2022, 2200275.(共同通讯作者, SCI收录,IF=6.8)

24.    FengZhang†, Zhou Mi†, Weizhong Hao, Hualong Chen, Yule Zhang,Jinjin Zhao*, Guozhong Cao*, Han Zhang*, Tunable engineering of photo-and electro-induced carrier dynamics in perovskite photoelectronic devices, SCIENCE CHINA Materials, 2022, 65, 855-857.(共同通讯作者, SCI收录,IF=8.1)

25.    Jinjin Zhao,* Zhenghao Liu, Hao Tang, Chunmei Jia,Xingyu Zhao, Feng Xue, Liyu Wei, Guoli Kong, Chen Wang and Jinxi Liu,* Enhanced Performance of Solar Cellsvia Anchoring CuGaS2 Quantum Dots,SCIENCE CHINA Materials, 2017, 60(9), 829-838.(第一/共同通讯作者,SCI收录,IF=8.1)

26.   Jinjin Zhao,* Liyu Wei, Jinxi Liu, Peng Wang, Zhenghao Liu, Chunmei Jia and JiangyuLi,* A sintering-free, nanocrystalline tin oxide electron selective layer fororganometal perovskite solar cells, SCIENCECHINA Materials, 2017, 60, 208-216.(第一/共同通讯作者,SCI收录,IF=8.1)

27.   Peiqi Wang, Jinjin Zhao,* LiyuWei, Qingfeng Zhu, Shuhong Xie, Jinxi Liu, Xiangjian Meng, and Jiangyu Li,* Photo-induced FerroelectricSwitching in Perovskite CH3NH3PbI3 Films, Nanoscale, 2017, 9,3806-3817.(共同通讯作者,SCI收录,IF=6.7)

28.   Yinan Jiao,† Shengjian Qin,† Bing Li,† Weizhong Hao,† Ye Wang1, Hao Li, Zhanping Yang, Dejun Dong,Xiangyu Li,* Jinjin Zhao,* Ferroelasticity Mediated Energy Conversion inStrained Perovskite Films.AdvancedElectronic Materials, 2022,2200415.(最后通讯作者, SCI收录,IF=6.2)

29.    HuiBu*,†, Caili He†, Yanqing Xu†, Lu Xing†,Xiaomin Liu, Shuxia Ren*, Shenghui Yi*, Liang Chen, Hao Wu, Guanglei Zhang*, JinjinZhao*, Jianlin Shi, Emerging New-Generation Detecting and Sensing of MetalHalide Perovskites, Advanced ElectronicMaterials, 2022, 2101204.(最后通讯作者, SCI收录,IF=6.2)

30.    ShuxiaRen*, Zhenhua Li, Lingzhi Tang, Xiao Su, He Zhang, Guanglei Zhang, Han Zhang,Guozhong Cao* and Jinjin Zhao*, Conduction Response in Highly FlexibleNonvolatile Memory Devices, AdvancedElectronic Materials, 2020, 6, 2000151.(最后通讯作者,SCI收录,IF=6.2)

31.   Shuxia Ren,* Weichao Dong, Hao Tang,Lingzhi Tang, Zhenhua Li, Qiang Sun, Huifang Yang, Zhigang Yang and Jinjin Zhao,* High-efficiency magneticmodulation in Ti/ZnO/Pt resistive random-access memory devices using amorphouszinc oxide film, Applied SurfaceScience, 2019, 488, 92-97. (共同通讯作者,SCI收录,IF=6.7)

32.    QilaiChen†, Ying Zhang†, Shuzhi Liu, Tingting Han, XinhuiChen, Yanqing Xu, Ziqi Meng, Guanglei Zhang, Xuejun Zheng, Jinjin Zhao*,Guozhong Cao*, Gang Liu*, SwitchablePerovskite Photovoltaic Sensors for Bioinspired Adaptive Machine Vision,Advanced Intelligent Systems, 2020,20200122. (共同通讯作者,SCI收录,IF=7.298)

33.    BoyuanHuang, Guoli Kong, Ehsan Nasr Esfahani, Shulin Chen, Qian Li, Junxi Yu, NinganXu, Ying Zhang, Shuhong Xie, Haidan Wen, Peng Gao, Jinjin Zhao,* andJiangyu Li,* Ferroic domainsregulate photocurrent in single-crystalline CH3NH3PbI3films self-grown on FTO/TiO2 substrate, npj Quantum Materials, 2018, 3, 1-8.(共同通讯作者,SCI收录,IF=5.7)

34.    ShuxiaRen, Zhenhua Li, Xiaomin Liu, Yongsheng Li, Guozhong Cao*, Jinjin Zhao*,Oxygen Migration Induced Effective Magnetic and Resistive Switching boosted byGraphene Quantum Dots,Journal ofAlloys and Compounds, 2021, 863,158339. (最后通讯作者,SCI收录,IF=6.371)

35.    CailiHe†, ZiqiMeng†, Shuxia Ren, Jian Li, Ye Wang, Hao Wu, HuiBu*, Yu Zhang, Weizhong Hao, Shulin Chen, Rongrong Yan, Huan Liu, Yufang Zhu, JinjinZhao*, Water-ultrastable Perovskite CsPbBr3 Nanocrystals forFluorescence-enhanced Cellular Imaging, RareMetals, 2023, 42, 1624-1634. (最后通讯作者,SCI收录,IF=8.8)

36.    JinjinZhao*,†,Xiao Su†, Zhou Mi†, Ying Zhang†, Yan-Jun Hu,*Hua-Jun Guo, Yi-Nan Jiao, Yu-Xia Zhang, Yan Shi, Wei-Zhong Hao, Jing-Wei Wu, YiWang, Cun-Fa Gao,* and Guo-Zhong Cao, Trivalent Ni oxidation controlled throughregulating lithium content to minimize perovskite interfacial recombination, Rare Metals, 2022, 41, 96-105.(第一/共同通讯作者,SCI收录,IF=8.8)

37.  Jinjin Zhao, Zile Hua,Zhicheng Liu, Yongsheng Li, Limin Guo, Wenbo Bu, Xiangzhi Cui, Meiling Ruan,Hangrong Chen,* Jianlin Shi,* Direct fabrication of mesoporouszeolite with a hollow capsular structure,ChemicalCommunications, 2009, 48, 7578-7580.(第一作者,SCI收录,IF=6.065)

38.  Jinjin Zhao, Hangrong Chen,Jianlin Shi,* Jinlou Gu,Xiaoping Dong, Jianhua Gao, Meiling Ruan, Ling Yu, Electrochemical and oxygendesorption properties of nanostructured ternary compound NaxMnO2directly illimet from mesoporous SBA-15, Microporousand Mesoporous Materials, 2008, 116, 432-438.(第一作者,SCI收录,IF=5.876)

39.  JinjinZhao,* Peng Wang, Liyu Wei, Zhenghao Liu, Xueqian Fang,Xianglin Liu, Deliang Rena, and Yaohua Mai*, Efficient charge-transport in hybrid lead iodide perovskite solar cells, Dalton Transactions, 2015, 44, 16914-16922.(第一/共同通讯作者,SCI收录,IF=4.569)

40.  JinjinZhao,* Peng Wang, Zhenghao Liu, Liyu Wei,Zhou Yang, Hangrong Chen, Xueqian Fang, Xianglin Liu and Yaohua Mai,*Controlled Reaction for Improved CH3NH3PbI3Transition in Perovskite Solar Cells. DaltonTransactions, 2015, 44, 17841 - 17849.(第一/共同通讯作者,SCI收录,IF=4.569)

41.  JinjinZhao,* Peng Wang, Liyu Wei, Zhenghao Liu, JiangbinZhang, Huayan Si, Yaohua Mai, Xueqian Fang, Xianglin Liu and Deliang Ren, Enhanced photocurrent by the co-sensitization of ZnOwith dye and CuInSe nanocrystals,DaltonTransactions, 2015,44, 12516- 12521.(第一/共同通讯作者,SCI收录,IF=4.0)

42.  Jinjin Zhao,* Wenna Wang, Lingxia Zhang, XiangzhiCui, yan Zhu, Wei Wu, Hangrong Chen and Jianlin Shi, Facile synthesis of superparamagnetic mesoporous zeolitemicrospheres for the capacious enrichments of enzyme and protein, Dalton Transactions, 2014, 43 (2), 406 – 409. (第一/共同通讯作者,SCI收录,IF=4.0)

43.  JinjinZhao,* Jiangbin Zhang, Wenna Wang, Peng Wang, Feng Li,Deliang Ren, Huanyan Si, Xiuguo Sun, Fengqiu Jia and Yanzhong Hao, FacileSynthesis of CuInGaS2 Quantum Dots Nanoparticles forBilayer-Sensitized Solar Cells,DaltonTransactions, 2014, 43 (44), 16588 – 16592.(第一/共同通讯作者,SCI收录,IF=4.0)

44.  Gang Yu, Luyi Zhu, Guanglei Zhang, Guoqiang Qin, Hua Fu,Fengqiu Ji, Jinjin Zhao,* Preparationand characterization of the continuous titanium-doped ZrO2 mesoporousfibers with large surface area, Journalof Porous Materials, 2014, 105-112. (共同通讯作者,SCI收录,IF=2.6)

45.  Jinjin Zhao, ŚebastienSallard, Bernd M. Smarsly, Silvia Gross, Massimo Bertino, Cédric Boissière, HangrongChen,* Jianlin Shi,* Photocatalytic performance ofmesoporous TiO2 films doped with gold clusters,Journal of Materials Chemistry, 2010, 20, 2831-2839. (第一通讯作者,SCI收录, IF=11.9)

46.  Jinjin Zhao, Jian Zhou, YuChen, Qianjun He, Meiling Ruan, Limin Guo, Jianlin Shi,* Hangrong Chen,*Fabrication of mesoporous zeolite microspheres by a one-pot dual- functionaltemplating approach, Journal ofMaterials Chemistry, 2009, 19, 7614-7616. (第一作者,SCI收录, IF=11.9)