%0 Journal Article %T Enhanced thermoelectric properties of Sb2Te3/CH3NH3I hybrid thin films by post-annealing %+ Shenzhen University [Shenzhen] %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Shenzhen University %A Chen, Shuo %A Li, Fu %A Chen, Yuexing %A Luo, Jingting %A Liang, Guangxing %A Zhang, Xianghua %A Zheng, Zhuanghao %A Fan, Ping %Z National Natural Science Foundation of ChinaNational Natural Science Foundation of China [11604212] %Z Shenzhen Key Lab Fund [ZDSYS 20170228105421966] %Z Natural Science Foundation of SZU [85304/00000297] %< avec comité de lecture %@ 2052-1553 %J Inorganic Chemistry Frontiers %I Royal Society of Chemistry %V 7 %N 1 %P 198-203 %8 2020 %D 2020 %R 10.1039/c9qi01188a %Z Chemical SciencesJournal articles %X In this work, to improve the ZT value of Sb2Te3, a novel concept of inorganic-organic hybridization is presented and Sb2Te3/CH3NH3I hybrid thin films have been prepared via a post-annealing involved sequential sputtering/evaporation method. The results show that the crystallinity of the thin films is greatly improved after post-annealing with preferential orientations of (006) and (009) at an appropriate temperature, leading to an obvious enhancement of electrical conductivity. Additionally, the hybrid thin films show uniform nano-sized grainy structures and the organic component CH3NH3I has been successfully incorporated into the hybrid system in a stable state, thus resulting in an increase of the Seebeck coefficient and decrease of the thermal conductivity based on the energy filtering effect. As expected, a maximum room-temperature ZT value of 0.56 for the Sb2Te3/CH3NH3I hybrid thin film annealed at 573 K can be obtained. This outcome further demonstrates great potential for the inorganic-organic hybrid thin film in low temperature application scenarios. %G English %L hal-02438530 %U https://univ-rennes.hal.science/hal-02438530 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ ISCR %~ SCR_VC %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ IVER %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ TEST-HALCNRS %~ UR1-MMS %~ TEST2-HALCNRS