Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature
Recently, organic–inorganic lead halide perovskites have gained great attention for their breakthrough in photovoltaic and optoelectronics. However, their thermal transport properties that affect the device lifetime and stability are still rarely explored. In this work, the thermal conductivity prop...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/141421 |
| _version_ | 1811696071931330560 |
|---|---|
| author | Shen, Chao Du, Wenna Wu, Zhiyong Xing, Jun Ha, Son Tung Shang, Qiuyu Xu, Weigao Xiong, Qihua Liu, Xinfeng Zhang, Qing |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Shen, Chao Du, Wenna Wu, Zhiyong Xing, Jun Ha, Son Tung Shang, Qiuyu Xu, Weigao Xiong, Qihua Liu, Xinfeng Zhang, Qing |
| author_sort | Shen, Chao |
| collection | NTU |
| description | Recently, organic–inorganic lead halide perovskites have gained great attention for their breakthrough in photovoltaic and optoelectronics. However, their thermal transport properties that affect the device lifetime and stability are still rarely explored. In this work, the thermal conductivity properties of single crystal CH3NH3PbI3 platelets grown by chemical vapor deposition are studied via non-contact micro-photoluminescence (PL) spectroscopy. We developed a measurement methodology and derived expressions suitable for the thermal conductivity extraction for micro-sized perovskites. The room temperature thermal conductivity of ∼0.14 ± 0.02 W m−1 K−1 is extracted from the dependence of the PL peak energy on the excitation laser power. On changing the film thickness from 80 to 400 nm, the thermal conductivity does not show noticeable variations, indicating the minimal substrate effects due to the advantage of the suspended configuration. The ultra-low thermal conductivity of perovskites, especially thin films, suggests their promising applications for thermal isolation, such as thermal insulation and thermo-electricity. |
| first_indexed | 2024-10-01T07:33:32Z |
| format | Journal Article |
| id | ntu-10356/141421 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:33:32Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1414212023-02-28T19:21:55Z Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature Shen, Chao Du, Wenna Wu, Zhiyong Xing, Jun Ha, Son Tung Shang, Qiuyu Xu, Weigao Xiong, Qihua Liu, Xinfeng Zhang, Qing School of Physical and Mathematical Sciences Science::Physics Thermal Conductivity CH3NH3PbI3 Platelets Recently, organic–inorganic lead halide perovskites have gained great attention for their breakthrough in photovoltaic and optoelectronics. However, their thermal transport properties that affect the device lifetime and stability are still rarely explored. In this work, the thermal conductivity properties of single crystal CH3NH3PbI3 platelets grown by chemical vapor deposition are studied via non-contact micro-photoluminescence (PL) spectroscopy. We developed a measurement methodology and derived expressions suitable for the thermal conductivity extraction for micro-sized perovskites. The room temperature thermal conductivity of ∼0.14 ± 0.02 W m−1 K−1 is extracted from the dependence of the PL peak energy on the excitation laser power. On changing the film thickness from 80 to 400 nm, the thermal conductivity does not show noticeable variations, indicating the minimal substrate effects due to the advantage of the suspended configuration. The ultra-low thermal conductivity of perovskites, especially thin films, suggests their promising applications for thermal isolation, such as thermal insulation and thermo-electricity. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-06-08T06:41:52Z 2020-06-08T06:41:52Z 2017 Journal Article Shen, C., Du, W., Wu, Z., Xing, J., Ha, S. T., Shang, Q., . . . Zhang, Q. (2017). Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature. Nanoscale, 9(24), 8281-8287. doi:10.1039/c7nr01894k 2040-3364 https://hdl.handle.net/10356/141421 10.1039/c7nr01894k 28585960 2-s2.0-85021824688 24 9 8281 8287 en Nanoscale © 2017 The Royal Society of Chemistry. All rights reserved. This paper was published in Nanoscale and is made available with permission of The Royal Society of Chemistry. application/pdf |
| spellingShingle | Science::Physics Thermal Conductivity CH3NH3PbI3 Platelets Shen, Chao Du, Wenna Wu, Zhiyong Xing, Jun Ha, Son Tung Shang, Qiuyu Xu, Weigao Xiong, Qihua Liu, Xinfeng Zhang, Qing Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title | Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title_full | Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title_fullStr | Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title_full_unstemmed | Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title_short | Thermal conductivity of suspended single crystal CH3NH3PbI3 platelets at room temperature |
| title_sort | thermal conductivity of suspended single crystal ch3nh3pbi3 platelets at room temperature |
| topic | Science::Physics Thermal Conductivity CH3NH3PbI3 Platelets |
| url | https://hdl.handle.net/10356/141421 |
| work_keys_str_mv | AT shenchao thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT duwenna thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT wuzhiyong thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT xingjun thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT hasontung thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT shangqiuyu thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT xuweigao thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT xiongqihua thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT liuxinfeng thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature AT zhangqing thermalconductivityofsuspendedsinglecrystalch3nh3pbi3plateletsatroomtemperature |