Extended air, light, and heat-resistive organolead halide perovskite single-crystalline microrods for high-performance photodetectors

Chang-Yu Lin, Rajesh Kumar Ulaganathan, Ambika Subramanian, Huei-Chu Weng, Yaw-Jen Chang, Raghavan Chinnambedu Murugesan, Raman Sankar, Alex Rozhin

Research output: Contribution to journalArticlepeer-review


Two-dimensional organic–inorganic hybrid perovskites are much attracted due to promising stable optoelectronic properties with tunable quantum well structures. Herein, we report the photodetector performance of the structurally tuned FA-incorporated hybrid perovskite FA-(N-MPDA)PbBr4 (FA = formamidinium and N-MPDA = N1-methylpropane-1,3-diammonium) high-quality single-crystalline microrods obtained from over supersaturated solution by a slow evaporation at constant temperature (SECT) growth method. The single crystalline FA-(N-MPDA)PbBr4 microrod exhibits exceptional structural, thermal, and optical stabilities against ambient, light, and heat exposures, which were systematically monitored using X-ray diffraction, photoluminescence, and thermogravimetric analysis/differential scanning calorimetry techniques. The photodetector device fabricated using stable FA-(N-MPDA)PbBr4 crystalline microrod exhibits good responsivity ∼40 A W−1 with a response time of less than 50 ms by shining a 405 nm laser. In addition, the microrods exhibit high specific detectivity of 7.8 × 1010 Jones at an incident light of 53 μW cm−2. These results demonstrate the potential of organic–inorganic perovskite microrods formed with a long-chain organic diammonium spacer suitable for stable and high-performance optoelectronic devices.
Original languageEnglish
Pages (from-to)8771-8779
JournalMaterials Advances
Issue number23
Early online date17 Sept 2022
Publication statusPublished - 17 Sept 2022

Bibliographical note

Copyright © 2022, The Author(s). Published by the Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence

Funding Information:
C.-Y. L. acknowledges the financial support provided by the National Science and Technology Council (NSTC), Taiwan, under grant numbers NSTC-111-2112-M-033-005-, NSTC-110-2221-E-033-022, and NSTC-111-2628-E-033-002-MY3. R. S. acknowledges MOST-111-2124-M-001-009, MOST-110-2112-M-001-065-MY3, and Academia Sinica for the budget of AS-iMATE-19-112. R. C. M. and A. R. acknowledge the Marie Skłodowska-Curie Individual Fellowship (MOFUS, #795356).


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