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Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%

Meng Wang and Liang Li

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DOI: 10.1088/1674-4926/26020007CSTR: 32376.14.1674-4926.26020007

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[1]
Zhao Z, Wang W, Jiang Y, et al. High-brightness all-polymer stretchable LED with charge-trapping dilution. Nature, 2022, 603: 624 doi: 10.1038/s41586-022-04400-1
[2]
Wang C, Hwang D, Yu Z, et al. User-interactive electronic skin for instantaneous pressure visualization. Nat Mater, 2013, 12: 899 doi: 10.1038/nmat3711
[3]
Yin H, Zhu Y, Youssef K, et al. Structures and Materials in Stretchable Electroluminescent Devices. Adv Mater, 2022, 34: 2106184 doi: 10.1002/adma.202106184
[4]
Yang X and Ding L. Organic semiconductors commercialization and market. J Semicond, 2021, 42: 090201 doi: 10.1088/1674-4926/42/9/090201
[5]
Zhou H, Kim H, Jeong W, et al. Toward Intrinsically Stretchable OLEDs with High Efficiency. Adv Mater, 2025, 37: 2420008 doi: 10.1002/adma.202420008
[6]
Liu W, Zhang C, Alessandri R, et al. High-efficiency stretchable light-emitting polymers from thermally activated delayed fluorescence. Nat Mater, 2023, 22: 737 doi: 10.1038/s41563-023-01529-w
[7]
Liang J, Niu X, Yu Z, et al. Elastomeric polymer light-emitting devices and displays. Nat Photon, 2013, 7: 817 doi: 10.1038/nphoton.2013.242
[8]
Han T, Lee Y, Choi M, et al. Extremely efficient flexible organic light-emitting diodes with modified graphene anode. Nat Photon, 2012, 6: 105 doi: 10.1038/nphoton.2011.318
[9]
Zhou H, Kim H, Han S, et al. Exciplex-enabled high-efficiency, fully stretchable OLEDs. Nature, 2026, 649: 604 doi: 10.1038/s41586-025-09904-0
Fig. 1.  (a) Schematic illustration of the phosphorescent fully stretchable OLEDs. (b) Left inset, in situ magneto-PL of Ir(ppy)2acac:PU before and after applying 50% tensile strain. Right inset, triplet exciton harvesting process of the stretchable phosphorescence under 50% strain. (c) Schematic of the MCSE embedding process. (d) Energy level alignment of the fully stretchable OLEDs. (e) Comparison of the EQE of previously reported fully stretchable OLEDs and rigid LEDs using a stretchable light-emitting layer[9].

[1]
Zhao Z, Wang W, Jiang Y, et al. High-brightness all-polymer stretchable LED with charge-trapping dilution. Nature, 2022, 603: 624 doi: 10.1038/s41586-022-04400-1
[2]
Wang C, Hwang D, Yu Z, et al. User-interactive electronic skin for instantaneous pressure visualization. Nat Mater, 2013, 12: 899 doi: 10.1038/nmat3711
[3]
Yin H, Zhu Y, Youssef K, et al. Structures and Materials in Stretchable Electroluminescent Devices. Adv Mater, 2022, 34: 2106184 doi: 10.1002/adma.202106184
[4]
Yang X and Ding L. Organic semiconductors commercialization and market. J Semicond, 2021, 42: 090201 doi: 10.1088/1674-4926/42/9/090201
[5]
Zhou H, Kim H, Jeong W, et al. Toward Intrinsically Stretchable OLEDs with High Efficiency. Adv Mater, 2025, 37: 2420008 doi: 10.1002/adma.202420008
[6]
Liu W, Zhang C, Alessandri R, et al. High-efficiency stretchable light-emitting polymers from thermally activated delayed fluorescence. Nat Mater, 2023, 22: 737 doi: 10.1038/s41563-023-01529-w
[7]
Liang J, Niu X, Yu Z, et al. Elastomeric polymer light-emitting devices and displays. Nat Photon, 2013, 7: 817 doi: 10.1038/nphoton.2013.242
[8]
Han T, Lee Y, Choi M, et al. Extremely efficient flexible organic light-emitting diodes with modified graphene anode. Nat Photon, 2012, 6: 105 doi: 10.1038/nphoton.2011.318
[9]
Zhou H, Kim H, Han S, et al. Exciplex-enabled high-efficiency, fully stretchable OLEDs. Nature, 2026, 649: 604 doi: 10.1038/s41586-025-09904-0
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    Received: 04 February 2026 Revised: Online: Accepted Manuscript: 27 March 2026

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      Meng Wang, Liang Li. Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%[J]. Journal of Semiconductors, 2026, In Press. doi: 10.1088/1674-4926/26020007 ****M Wang and L Li, Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%[J]. J. Semicond., 2026, accepted doi: 10.1088/1674-4926/26020007
      Citation:
      Meng Wang, Liang Li. Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%[J]. Journal of Semiconductors, 2026, In Press. doi: 10.1088/1674-4926/26020007 ****
      M Wang and L Li, Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%[J]. J. Semicond., 2026, accepted doi: 10.1088/1674-4926/26020007

      Exciplex-enabled fully stretchable OLEDs achieve a record external quantum efficiency of 17%

      DOI: 10.1088/1674-4926/26020007
      CSTR: 32376.14.1674-4926.26020007
      More Information
      • Meng Wang received his Ph.D. degree in condensed matter physics at Soochow university (2022). Then he worked as a postdoctoral fellow (2022-2025) and associate professor (2025-now) at School of Physical Science and Technology, Soochow University. His research focus on non-planar semiconductors arrays and optoelectronic applications
      • Liang Li received his Ph.D. degree in Institute of Solid State Physics, Chinese Academy of Sciences (2006). He is currently the professor and dean of School of Physical Science and Technology, Soochow University. His research interest relates to energy conversion and storage, including photodetectors, solar cells and batteries
      • Received Date: 2026-02-04
        Available Online: 2026-03-27

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