DataVXAdvanced Optical MaterialsPaper
journal article·2025-12

Unified Approach to Sensitive and Fast Perovskite Photodetectors Featuring an Ultrawide Linear Dynamic Range

Prabal Dweep Khanikar, Sahil Shah, Atul Shukla, Cameron M. Cole, Zhanglin Guo, Samaresh Das, Shih‐Chun Lo, Toshinori Matsushima, Ebinazar B. Namdas

Advanced Optical Materials· Volume 13· Issue 36
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Source abstract

Abstract

Abstract Organic–inorganic halide perovskite photodetectors (PDs) offer excellent performance, yet some critical parameters, like linear dynamic range (LDR) and low‐light detection, remain underexplored. Here, a formamidinium lead iodide (FAPbI 3 ) perovskite PD is reported with a wide LDR and enhanced low‐light sensitivity. Two hole‐transport layers (HTLs), spiro‐OMeTAD and C8‐BTBT, are employed to systematically investigate their effects on the PD's key performance parameters. While spiro‐OMeTAD provides superior charge extraction, it requires doping, potentially compromising long‐term stability. In contrast, the small molecule‐based semiconductor C8‐BTBT provides greater stability and suitable hole mobility. Both HTL‐based devices exhibit excellent light sensitivity, detecting light down to a few pW cm −2 . Devices with doped HTL exhibit a wide LDR reaching 200 dB. Furthermore, theoretical simulations highlight the critical impact of conductivity, energy level alignment, and ion migration on the PD's performance. This work elucidates the HTL's role in the device performance, aiding in selecting an appropriate HTL for specific applications.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Organic Electronics and Photovoltaics · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

UQ‐IITD Research Academy Indian Institute of Technology Delhi New Delhi 110016 India

School of Mathematics and Physics The University of Queensland Brisbane QLD 4072 Australia

Centre for Applied Research in Electronics Indian Institute of Technology Delhi New Delhi 110016 India

Institute of Physics and Astronomy University of Potsdam 14476 Potsdam Germany

International Institute for Carbon‐Neutral Energy Research Kyushu University 744 Motooka Nishi Fukuoka 819‐0395 Japan

School of Chemistry and Molecular Biosciences The University of Queensland Brisbane QLD 4072 Australia

Funding

Precursory Research for Embryonic Science and Technology · Japan Science and Technology Agency · New Energy and Industrial Technology Development Organization · Science and Technology Research Partnership for Sustainable Development · Department of Industry, Innovation and Science, Australian Government

References (56)

Show source-provided references
1. 10.1038/nenergy.2016.15210.1038/nenergy.2016.152 ↗
2. 10.1038/nphoton.2014.13410.1038/nphoton.2014.134 ↗
3. 10.1073/pnas.160747111310.1073/pnas.1607471113 ↗
4. 10.1002/adma.20160066910.1002/adma.201600669 ↗
5. 10.1002/inf2.1214110.1002/inf2.12141 ↗
6. 10.1039/C9CS00848A10.1039/C9CS00848A ↗
7. 10.1038/nnano.2015.9010.1038/nnano.2015.90 ↗
8. 10.1002/adma.20140511610.1002/adma.201405116 ↗
9. 10.1021/acs.chemrev.0c0010710.1021/acs.chemrev.0c00107 ↗
10. 10.1039/c3ee43822h10.1039/c3ee43822h ↗
11. 10.1002/sstr.20200013010.1002/sstr.202000130 ↗
12. 10.1038/nature1413310.1038/nature14133 ↗
13. 10.1126/science.aaa927210.1126/science.aaa9272 ↗
14. 10.1021/acsenergylett.1c0131110.1021/acsenergylett.1c01311 ↗
15. 10.1002/aenm.20210253810.1002/aenm.202102538 ↗
16. 10.1002/adma.20220832510.1002/adma.202208325 ↗
17. 10.1021/acsami.0c0848510.1021/acsami.0c08485 ↗
18. 10.1039/C7EE00358G10.1039/C7EE00358G ↗
19. 10.1002/aenm.20190340310.1002/aenm.201903403 ↗
20. 10.1002/smll.20180102010.1002/smll.201801020 ↗
21. 10.1063/5.009298810.1063/5.0092988 ↗
22. 10.1021/jacs.0c0222710.1021/jacs.0c02227 ↗
23. 10.1002/adma.20241457610.1002/adma.202414576 ↗
24. 10.1002/solr.20240034210.1002/solr.202400342 ↗
25. 10.1039/C7TC00664K10.1039/C7TC00664K ↗
26. 10.1002/smll.20180115410.1002/smll.201801154 ↗
27. 10.1016/j.matchemphys.2020.12312910.1016/j.matchemphys.2020.123129 ↗
28. 10.1039/C5EE02608C10.1039/C5EE02608C ↗
29. 10.1016/j.solener.2020.05.04110.1016/j.solener.2020.05.041 ↗
30. 10.3390/electronics301013210.3390/electronics3010132 ↗
31. 10.1039/C9EE02020A10.1039/C9EE02020A ↗
32. 10.1039/D1EE02095A10.1039/D1EE02095A ↗
33. 10.1038/s41598-020-79139-810.1038/s41598-020-79139-8 ↗
34. 10.1038/s41560-024-01487-w10.1038/s41560-024-01487-w ↗
35. 10.1016/j.joule.2024.06.01710.1016/j.joule.2024.06.017 ↗
36. 10.1002/aenm.20240072010.1002/aenm.202400720 ↗
37. 10.1002/adma.20240036510.1002/adma.202400365 ↗
38. Deng M. · Nat. Commun. · 2024 · 15 · 1
39. 10.1021/acs.jpclett.1c0422510.1021/acs.jpclett.1c04225 ↗
40. 10.1016/j.jmst.2025.03.08110.1016/j.jmst.2025.03.081 ↗
41. 10.1002/adma.20210062510.1002/adma.202100625 ↗
42. 10.1038/s41598-018-29147-610.1038/s41598-018-29147-6 ↗
43. 10.1002/adma.20241201410.1002/adma.202412014 ↗
44. 10.1021/acs.nanolett.2c0414410.1021/acs.nanolett.2c04144 ↗
45. 10.1002/inf2.1259410.1002/inf2.12594 ↗
46. 10.1021/acsami.3c0083910.1021/acsami.3c00839 ↗
47. 10.1021/acsami.9b1279910.1021/acsami.9b12799 ↗
48. 10.1002/advs.20220587910.1002/advs.202205879 ↗
49. 10.1021/acsnano.9b0577410.1021/acsnano.9b05774 ↗
50. 10.1002/adfm.20211227710.1002/adfm.202112277 ↗
51. 10.1002/adfm.20220869410.1002/adfm.202208694 ↗
52. 10.1002/admi.20210026610.1002/admi.202100266 ↗
53. 10.1002/advs.20220438610.1002/advs.202204386 ↗
54. 10.1002/adom.20170065410.1002/adom.201700654 ↗
55. 10.3390/ma1610379610.3390/ma16103796 ↗
56. 10.1039/D2TC02686D10.1039/D2TC02686D ↗