黑卟啉无掺杂空穴传输材料在钙钛矿太阳能电池上的应用  

Black porphyrin doped-free hole transport material for perovskite solar cells

作　　者：赵芃 接鲸瑞 关硕 张宝[1,3] 冯亚青 ZHAO Peng;JIE Jingrui;GUAN Shuo;ZHANG Bao;FENG Yaqing(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China;Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China;Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center,Jieyang 522000,Guangdong,China)

机构地区：[1]天津大学化工学院,天津300350 [2]天津化学化工协同创新中心,天津300072 [3]广东化学与精细化工实验室揭阳分中心,广东揭阳522000

出　　处：《精细化工》2021年第7期1374-1379,1415,共7页Fine Chemicals

基　　金：国家自然科学基金(21761132007);中国科技部重点研发计划(2016YFE0114900)。

摘　　要：制备高空穴迁移率的空穴传输材料对钙钛矿太阳能电池的商业化应用具有重要意义。合成了一种热稳定性好、对可见光谱全吸收的黑卟啉分子5,10,15,20-四[3,5-二(叔丁基)苯基]-β,β′-四萘醌[6,7-g]锌卟啉(T1),通过UV-Vis、循环伏安、SEM、TGA考察了T1的光物理性质、电化学、热稳定性能及成膜性。结果表明,T1的最高占据分子轨道能级为-5.13 eV,与2,2′,7,7′-四(N,N′-二对甲氧基苯胺)-9,9′-螺二芴(spiro-OMe TAD)(-5.11 eV)相近,能很好地与钙钛矿材料甲胺铅碘相匹配。在不使用传统掺杂剂的条件下,以T1为空穴传输层的钙钛矿太阳能电池的短路电流、开路电压、填充因子及光电转换效率分别为23.86mA/cm^(2)、0.91V、61.9%和13.43%,其光电转换效率优于相同条件下制备的基于spiro-OMe TAD的钙钛矿太阳能电池(11.63%)。The preparation of hole-transporting materials with high hole mobility is of great significance for the commercial application of perovskite solar cells.5,10,15,20-tetra[3,5-di(tert-butyl)phenyl]-β,β′-tetranaphthoquinone[6,7-g]zinc porphyrin(T1),a black porphyrin molecule with high thermal stability and full visible light absorption capability was synthesized.The photophysical properties,electrochemical properties,thermal stability and film forming properties of T1 were investigated by UV-Vis,cyclic voltammetry,SEM and TGA.The results indicated that the highest occupied molecular orbital energy level of T1 was -5.13 e V,which was similar to that of 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene(spiro-OMeTAD)(-5.11 e V),could be well matched with that of the perovskite material,methylammonium lead iodide.The short-circuit current,open-circuit voltage,fill factor and photoelectric conversion efficiency of the perovskite solar cell with T1 as hole transport layer without any dopant were 23.86 m A/cm^(2),0.91 V,61.9% and 13.43%,respectively.The photoelectric conversion efficiency of the perovskite solar cell based on T1 was much higher than that of spiro-OMeTAD-based perovskite solar cell prepared under the same condition(11.63%).

关 键 词：卟啉 空穴传输材料 钙钛矿太阳能电池 光电转换效率 功能材料 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]