Abstract The excellent properties of Methyl Ammonium Lead Iodide (MAPI) have already created an extensive research interest in photovoltaic applications. However, their utility in thermoelectric application is still not realized thoroughly by researchers. By continuing this interest, we have explored the formation of low dimensional CH3NH3PbI3 (MAPI) perovskite in presence of Polyaniline (PANI) and Multi-Walled Carbon Nanotubes (MWCNT) and its thermoelectric performance. For this purpose, a two stage, in-situ synthesis method was developed to prepare various composites such as MAPI-PANI, MWCNT-MAPI and MWCNT-PANI-MAPI. The as-formed MWCNT-PANI-MAPI composite revealed p-type conductivity with enhanced ZT (up to ~20,000 times) and power factor (3000 times) at room temperature as compared to pristine MAPI sample. Finally, we have demonstrated a proto-type thermoelectric power generator (TE device) fabricated using the best performing composite sample and measured its power output and efficiency at varied δT.

中文翻译：

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甲基铵碘化铅钙钛矿及其MWCNT-PANI复合材料的室温热电性能

摘要 甲基碘化铅（MAPI）的优异性能已经在光伏应用领域引起了广泛的研究兴趣。然而，它们在热电应用中的效用仍未被研究人员彻底认识。通过继续这一兴趣，我们探索了在聚苯胺 (PANI) 和多壁碳纳米管 (MWCNT) 存在下低维 CH3NH3PbI3 (MAPI) 钙钛矿的形成及其热电性能。为此，开发了一种两阶段原位合成方法来制备各种复合材料，如 MAPI-PANI、MWCNT-MAPI 和 MWCNT-PANI-MAPI。与原始 MAPI 样品相比，形成的 MWCNT-PANI-MAPI 复合材料在室温下具有增强的 ZT（高达 ~20,000 倍）和功率因数（3000 倍）的 p 型导电性。最后，