❂ Research

Design and synthesis of organic conjugated molecules for organic electronic applications such as Organic Photovoltaic Cells(OPVCs).
 

❂ Publications​ 

1. Ternary Organic Photovoltaic Cells Exhibiting 17.59% Efficiency with Two Compatible Y6 Derivations as Acceptor
   X. Wang, Q. Sun, J. Gao, X. Ma, J. H. Son, S. Y. Jeong, Z. Hu, L. Niu*, H. Y. Woo*, J. Zhang, F. Zhang*
   Solar RRL 2021, in press.

2. Approaching 18% efficiency of ternary organic photovoltaics with wide bandgap polymer donor and well compatible Y6:Y6-1O as acceptor
   X. Ma, A. Zeng, J. Gao, Z. Hu, C. Xu, J. H. Son, S. Y. Jeong, C. Zhang, M. Li, K. Wang, H. Yan, Z. Ma, Y. Wang, H. Y. Woo*, F. Zhang,*
   National Science Review 2021, in press.

3. Cyano-Functionalized Bithiophene Imide-Based n-Type Polymer Semiconductors: Synthesis, Structure-Property Correlations, and Thermoelectric Performance
   K. Feng, H. Guo, J. Wang, Y. Shi, Z. Wu, M. Su, X. Zhang, J. H. Son, H. Y. Woo, X. Guo*
   J. Am. Chem. Soc. 2021, 143, 3, 1539–1552.

4. Degenerately doped highly crystalline polymers for high performance thermoelectrics
   Y. Lee, J. Park, J. H. Son, H. Y. Woo*, J. Kwak*
   Adv. Funct. Mater. 2020, 2006900

5. A Generally Applicable Approach Using Sequential Deposition to Enable Highly Efficient Organic Solar Cells
   H.Fu, W. Gao, Y. Li, F. Lin, X.Wu, J. H. Son, J. Luo, H. Y. Woo,* Z. Zhu,* and Alex K.-Y. Jen*
   Small Methods 2020, 2000687.

6. A-D-A Type Semiconducting Small Molecules with Bis(alkylsulfanyl)methylene Substituents and Control of Charge Polarity for Organic Field-Effect Transistors
   S. J. Cho, M. J. Kim, Z. Wu, J. H. Son, S. Y. Jeong, S. Lee, J. H. Cho*, H. Y. Woo*
   ACS Appl. Mater. Interfaces 2020, 12, 41842−41851.

7. Efficient Exciton Diffusion in Organic Bilayer Heterojunctions with Non-Fullerene Small Molecular Acceptors
   T. H. Lee, S. Y. Park, W.-W. Park, X. Du, J. H. Son, N. Li, O.-H. Kwon, H. Y. Woo*, C. J. Brabec,* J. Y. Kim*
   ACS Energy Lett. 2020, 5(5), 1628-1635.

❂ Research

Design and synthesis of organic conjugated molecules for organic electronic applications such as Organic Photovoltaic Cells(OPVCs).
 

❂ Publications​ 

1. Simplified Y6-based Nonfullerene Acceptors: In-Depth Study on Molecular Structure-Property Relation, Molecular Dynamics Simulation, and Charge Dynamics
   D Yuk, M. H. Jee, C. W. Koh, W.-W. Park, H. S. Ryu, D. Lee, S. Cho, S. Rasool, S. Park*, O.-H. Kwon*, J. Y. Kim*, H. Y. Woo*
   Small  2022, in press.

2. Recent Advances in Nonfullerene Acceptor-Based Layer-by-Layer Organic Solar Cells Using a Solution Process
   M. H. Jee, H. S. Ryu, D. Lee, W. Lee*, H. Y. Woo*
   Adv. Sci. 2022, 9(25), 2201876

3. NIR-Absorbing Electron Acceptor Based on a Selenium-Heterocyclic Core Attaching to Phenylalkyl Side Chains for Polymer Solar Cells with 17.3% Efficiency 
   E. Zhu, L. Fu, Y. Lu, W. Jiang, M. H. Jee, R. Liu, Z. Li, G. Che*, H. Y. Woo*, C. Liu*
   ACS Appl. Mater. Interfaces. 2022, 14, 5, 7082–7092.

4. Fullerene–Nonfullerene Hybrid Acceptors for Enhanced Light Absorption and Electrical Properties in Organic Solar Cells
   Z. Wu, S. Lee, S. Y. Jeong, M. H. Jee, H. G. Lee, C. Lim, C. Wang, B. J. Kim*, H. Y. Woo*
   Materials Today Energy, 2021, in press.

❂ Research

Synthesis and characterization of monomers and (co)polymer for perovskite solar cell & LED.

 

❂ Research

Research structure - property relationship and chemical doping mechanisms.

Synthesis of organic conjugated molecules for thermoelectricity and  for application to thermoelectric devices.

​

❂ Publications​ 

1. Polymers by Incorporating Oligoethylene Glycol Side-chains and Sequential Solution Doping with Pre-annealing Treatment
   A. Tripathi, Y. Ko, M. Kim, Y. Lee, S. Lee, J. Park, Y.-W. Kwon, J. Kwak,* H. Y. Woo*
   Macromolecules. 2020, 53, 16, 7063–7072.

2. Recent Progress in Organic Thermoelectric Materials and Devices
   S. Lee, S. Kim, A. Pathak, A. Tripathi, T. Qiao, Y. Lee, H. Lee*, H. Y. Woo*
   Macromol. Res. 2020, 28(6), 531-552.

❂ Research

Research structure - property relationship and chemical doping mechanisms.

Synthesis of organic conjugated molecules for thermoelectricity and  for application to thermoelectric devices.
Design and synthesis of organic conjugated molecules for organic electronic applications such as Organic Photovoltaic Cells(OPVCs).

​

❂ Publications​ ​​

​

• Scientific Journals (first author)

1. Ion Gel-Gated Quasi-Solid-State Vertical Organic Electrochemical Transistor and Inverter
   S. Y. Jeong, J. W. Moon, S. Lee, Z. Wu, S. H. Park, J. H. Cho*, H. Y. Woo*
   Adv. Electron. Mater. 2023, 9(6), 2300053 (2023. 6)

2. A newly designed benzodithiophene building block: tuning of torsional barrier for non-halogenated and non-aromatic solvent-processible photovoltaic polymers
   H. W. Cho, S. Y. Jeong, Z. Wu, H. Lim, W.-W. Park, W. Lee, J. V. S. Krishna, O.-H. Kwon, J. Y. Kim*, H. Y. Woo*
   J. Mater. Chem. A , 2023, 11, 7053 - 7065. (2023. 4)

​​

• Scientific Journals (co-author)

1. Biselenophene Imide: Enabling Polymer Acceptor with High Electron Mobility for High-Performance All-Polymer Solar Cells
   S. Ma, B. Li, S. Gong, J. Wang, B. Liu, S. Y. Jeong, X. Chen, H. Y. Woo, K.  Feng,* X. Guo*
   Angew. Chem. Int Ed. 2023, e202308306.

2. Target Therapy for Buried Interface Enables Stable Perovskite Solar Cells with 25.05% Efficiency
   X. Ji, L. Bi, Q. Fu*, B. Li, J. Wang, S. Y. Jeong, K. Feng, S. Ma, Q. Liao, F. R Lin, H.Y. Woo, L. Lu, A. K.‐Y. Jen*, X. Guo*
   Adv. Mater. 2023, 2303665.

3. Over 19.1% efficiency for sequentially spin-coated polymer solar cells by employing ternary strategy
   Z. Liu, M. Zhang, L. Zhang, S. Y. Jeong, S. Geng, H. Y. Woo, J. Zhang, F. Zhang*, X. Ma*
   Chem. Eng. J. 2023, 471, 144711. (2023. 9.)

4. On the Conformation of Dimeric Acceptors and Their Polymer Solar Cells with Efficiency over 18%
   J. Wu, Z. Ling, L. R. Franco, S. Y. Jeong, Z. Genene, J. M. Gómez, S. Chen, C. Chen, C. M. Araujo, C. FN. Marchiori, J. Kimpel, X. Chang, F. H. Isikgor, Q. Chen, H. Faber, Y. Han, F. Laquai, M. Zhang, H. Y. Woo, D. Yu*, T. D. Anthopoulos*, E. Wang*
   Angew. Chem. Int Ed. 2023, e202302888.

5. Polythiophene Derivatives for Efficient All-Polymer Solar Cells
   M. An, Q. Bai, S. Y. Jeong, J. Ding, C. Zhao, B. Liu, Q. Liang, Y. Wang, G.Zhang, H.Y.Woo, X. Qiu, L. Niu, X. Guo, H. Sun
   Adv. Energy Mater. 2023, 230111.

6. Cyano-Functionalized Fused Bithiophene Imide Dimer-Based n-type polymers for High-Performance Organic Thermoelectrics​
   K. Feng,* W. Yang, S. Y. Jeong, S. Ma, Y. Li, J. Wang, Y. Wang, H. Y. Woo, P. K. L. Chan, G. Wang,* X. Guo,* M. Zhu
   Adv. Mater. 2023, 35, 2210847. (2023. 8.)

7. Record Indoor Performance of Organic Photovoltaics with Long-Term Stability Enabled by Self-Assembled Monolayer-Based Interface Management
   T. H. Kim, N. W. Park, M. A. Saeed, S. Y. Jeong, H. Y. Woo, J. Park*, J. W. Shim*
   Nano Energy  2023, 112, 108429. (2023. 7.)

8. Over 17.4% efficiency of layer-by-layer all-polymer solar cells by improving exciton utilization in acceptor layer
   W. Xu, M. Zhang, X. Ma, X. Zhu, S. Y. Jeong, H. Y. Woo, J. Zhang, W. Du, J. Wang, X. Liu, F. Zhang
   Adv. Funct. Mater. 2023,33, 2215204. (2023. 7.)

9. Regioisomeric Cyanated Polythiophenes Bearing Polar Side Chains for n-Type Organic Thermoelectrics
   J. Li, K. Yang*, D. Wang, B. Liu, Y. Wang, S. Y. Jeong, Z. Chen, H. Y. Woo, X. Guo*
   Macromolecules  2023, 56, 6, 2339–2347. (2023. 3.)

10. Aldol Condensation-Enabled Acceptor-Acceptor Type Bithiophene Imide Polymer Semiconductors for n-Type Organic Field-Effect Transistors
    D. Wang, Y. Hou, K. Yang*, Y. Wang, Q. Liao, S. Y. Jeong, J. Li, H. Y. Woo, X. Deng*, X. Guo*
    Dyes and Pigments  2023, 212, 111138. (2023. 4)  

11. Terminal Cyano-Functionalized Fused Bithiophene Imide Dimer-Based n-Type Small Molecular Semiconductors: Synthesis, Structure-Properties Correlations, and Thermoelectric Performances
    D. Wang, J. Li, K. Yang*, Y. Wang, S. Y. Jeong, Z. Chen, Q. Liao, B. Li, H. Y. Woo, X. Deng*, X. Guo*
    ACS Appl. Mater. Interfaces  2023, 15, 9714−9725. (2023. 2).

12. A 19% efficient and stable organic photovoltaic device enabled by a guest nonfullerene acceptor with fibril-like morphology
    H. Chen, S. Y. Jeong, J. Tian, D. Naphade, Y. Zhang, M. Alsufyani, W. Zhang, S. Griggs, H. Hu, S. Barlow, H. Y. Woo, S. Marder, T. Anthopoulos, I. McCulloch, Y. Lin
    Energy Environ. Sci. 2023, 16, 1062-1070. (2023. 3)

13. Over 18.1% efficiency of layer-by-layer polymer solar cells by enhancing exciton utilization near ITO electrode
    X. Ma*, W. Xu, Z. Liu, S. Y. Jeong, C. Xu, J. Zhang*, H. Y. Woo*, Z. Zhou, F. Zhang*
    ACS Appl. Mater. Interfaces 2023, 2023, 15, 5, 7247–7254.  (2023. 2)

14. Impacts of Metal Oxide Diffusion and Materials Design on Thermal Stabilities of Non-Fullerene Polymer Solar Cells
    D. Lee, Y. Jang, J. Kim, S. Y. Jeong, H. Y. Woo, D. Lee, J. B. Kim, Y. Lee, C. Lee, W. Lee
    J. Mater. Chem. A 2023, 11, 3008-3017 (2023. 2).

15. Acceptor-acceptor type polymers based on cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole for high-efficiency n-type organic thermoelectrics
    J. Wang, K. Feng, S. Y. Jeong, B. Liu, Y. Wang, W. Wu, Y. Hou, H. Y. Woo, Xugang Guo
    Polymer J. 2023, 55, 507-515 (2023. 4).

16. Relationship between energetic disorder and reduced-recombination of free carriers in organic solar cells
    S. M. Hosseini, S. Wilken, B. Sun, F. Huang, S. Y. Jeong, H. Y. Woo, V. Coropceanu, S. Shoaee*
    Adv. Energy Mater. 2023, 13(8), 2203576 (2023. 2).

17. Combination of Highly Photovoltaic and Highly Transparent Materials Enables Record Performance Semitransparent Organic Solar Cells
    L. Zhao, X. Huang, Y. Wang, S. Y. Jeong, B. Huang, J. Deng, J. Liu, Y. Cheng, H. Y. Woo, F. Wu, L. Chen*, L. Chen*
    Chem. Eng. J. 2023, 451, 139081. (2023. 1).

18. 18.66% efficiency of polymer solar cells employing two non-fullerene acceptors with fluorine or chlorine substitution
    S. Zhang, X. Ma, L. Niu*, S. Y. Jeong, H. Y. Woo*, Z. Zhou*, F. Zhang*
    Solar RRL 2023, 7(1), 2200957 (2023. 1).

19. Facilely full-end-capping engineering promotes high-performance organic solar cells with simultaneously improved efficiency and stability
    Y. Zhang, J. Deng, Q. Mao, S. Y. Jeong, X. Huang, L. Zhang, B. Lee, B. Huang, H. Y. Woo, C. Yang, J. Xu, F. Wu, Q.-Y. Cao, L. Chen*
    Chem. Eng. J. 2023, 457, 141343 (2023. 2).

20. Regulation of Polymer Configurations Enables Green Solvent-processed Large-area Binary All-polymer Solar Cells with Breakthrough Performance and High Efficiency Stretchability Factor
    J. Liu, J. Deng, Y. Zhu, X. Geng, L. Zhang, S. Y. Jeong, D. Zhou, H. Y. Woo, D. Chen, F. Wu, L. Chen
    Adv. Mater. 2023, 35(1), 2208008 (2023. 1)

21. Synergistic contribution of oligo(ethylene glycol) and fluorine substitution of conjugated polymer photocatalysts towards solar driven sacrificial hydrogen evolution
    S. An, Z. Wu, H. Jeong, J. Lee, S. Y. Jeong, W. Lee, S. Kim, J. W. Han, J. Lim, H. Cha,* H. Y. Woo*, D. S. Chung*
    Small . 2023, 19(5), 2204905 (2023. 2).

22. Thiazole Imide-Based All-Acceptor Homopolymer with Branched Ethylene Glycol Side Chains for Organic Thermoelectrics
    Y. Shi, J. Li, H. Sun, Y. Li, Y. Wang, Z. Wu, S. Y. Jeong, H. Y. Woo, S. Fabiano, X. Guo
    Angew. Chem. Int Ed. 2022, 134(51), e202214192 (2022. 12. 19).

23. A molecular weight-regulated sequential deposition strategy enabling semitransparent organic solar cells with the light utilization efficiency of over 5%
    X. Huang, Y. Cheng, Y. Fang, L. Zhang, X. Hu, S. Y. Jeong, H. Zhang, H. Y. Woo, F. Wu, L. Chen*
    Energy Environ. Sci., 2022, 15, 4776-4788. (2022. 11)

24. 15.28% efficiency of conventional layer-by-layer all-polymer solar cells superior to bulk heterojunction or inverted cells
    Z. Liu, X. Ma*, W. Xu, S. Zhang, C. Xu, S. Y. Jeong, H. Y. Woo*, Z. Zhou*, F. Zhang*
    Chem. Eng. J. 2022, 450, 138146. (2022. 12)

25. Achieving 15.81% and 15.29% efficiency of all-polymer solar cells based on layer-by-layer and bulk heterojunction structures
    W. Xu, X. Zhu, X. Ma*, H. Zhou, X. Li, S. Y. Jeong, H. Y. Woo, Z. Zhou*, Q. Sun*, F. Zhang*
    J. Mater. Chem. A . 2022, 10, 13492-13499. (2022. 6)  

26. Efficient semitransparent layer-by-layer organic photovoltaics via optimizing wide bandgap and narrow absorption polymer layer thickness
    C. Xu, K. Jin, Z. Xiao, Z. Zhao, Y. Yan, X. Zhu, X. Li, Z. Zhou,* S. Y. Jeong, L. Ding,* H. Y. Woo, G. Yuan,* F. Zhang*
    Solar RRL. 2022, 6(8), 2200308 (2022. 8).

27. Highly stable photomultiplication-type organic photodetectors with single polymers containing intramolecular traps as the active layer
    Z. Zhao, B. Liu, C. Xu, L. Li, M. Liu, K. Yang, S. Y. Jeong, H. Y. Woo, G. Yuan*, W. Li*, F. Zhang*
    J. Mater. Chem. C, 2022, 10, 7822-7830. (2022. 5)

28. Ferroelectric Polymer Drives Performance Enhancement of Non-fullerene Organic Solar Cells
    J. Deng, B. Huang, W. Li, L. Zhang, S. Y. Jeong, S. Huang, S. Zhang, F. Wu, X. Xu, G. Zou, H. Y. Woo, Y. Chen, L. Chen
    Angew. Chem. In. Ed. 2022, 61 (25), e202202177 (2022. 6. 20)

29. Boosted efficiency over 18.1% of polymer solar cells by employing large extinction coefficients material as the third component
    S. Zhang, X. Ma*, C. Xu, W. Xu, S. Y. Jeong, H. Y. Woo*, Z. Zhou*, X. Zhang, F. Zhang*
    Macromol. Rapid Commun. 2022, 43(15), 2200345 (2022. 8).

30. Layered optimization strategy enables over 17.8% efficiency of layer-by-layer organic photovoltaics
    X. Ma, Q. Jiang, W. Xu, C. Xu, S. Y. Jeong, H. Y. Woo, Q. Wu,* X. Zhang, G. Yuan,* F. Zhang*
    Chem. Eng. J. 2022, 442, 136368. (2022. 8).

31. Achieving 17.5% efficiency for polymer solar cells via a donor and acceptor layered optimization strategy
    W. Xu, X. Li,* S. Y. Jeong, J. H. Son, Z. Zhou,* Q. Jiang, H. Y. Woo, Q. Wu, X. Zhu, X. Ma, F. Zhang*
    J. Mater. Chem. C 2022, 10, 5489. (2022. 4.)

32. Over 18% Ternary Polymer Solar Cells Enabled by a Terpolymer as the Third Component
    W. Peng, Y. Lin*, S. Y. Jeong, Z. Genene, A. Magomedov, H. Y. Woo, C. Chen, W. Wahyudi, Q. Tao, J. Deng, Y. Han, V. Getautis, W. Zhu*, T. D. Anthopoulos*, E. Wang*
    Nano Energy . 2022, 92, 106681. (2022. 2)

33. Low-bandgap nonfullerene acceptor based on thieno[3,2-b]indole core for highly efficient binary and ternary organic solar cells
    L. Xie, Y. Zhang, W. Zhuang, S. Y. Jeong, Q. Bian, H. Li, J. Cao*, W. Liu, H. Tan*, H. Y. Woo, J. Zhang*, E. Wang*
    Chem. Eng. J. 2022, 427, 131674. (2022. 1. 1.)

34. Over 17.7% efficiency ternary-blend organic solar cells with low energy-loss and good thickness-tolerance
    Gao, X. Ma, C. Xu, X. Wang, J. H. Son, S. Y. Jeong, Y. Zhang, C. Zhang, K. Wang, L. Niu*, J. Zhang*, H. Y. Woo, J. Zhang, F. Zhang*
    Chem. Eng. J. 2022, 428, 129276. (2022. 1)

35. Smart Ternary Strategy in Promoting the Performance of Polymer Solar Cells Based on Bulk-Heterojunction or Layer-By-Layer Structure
    W. Xu, X. Ma, J. H. Son, S. Y. Jeong, L. Niu*, C. Xu, S. Zhang, Z. Zhou*, J. Gao, H. Y. Woo*, J. Zhang, J. Wang, F. Zhang*
    Small . 2022, 18(4), 2104215 (2022. 1 27).

36. Ternary polymer solar cells with iridium-based polymer PM6Ir1 as donor and N3:ITIC-Th as acceptors exhibiting over 17.2% efficiency
    S. Zhang, M. Zhang, X. Wang, C. Xu, W. Xu, J. Gao*, J. Wang, W.-Y. Wong*, J. H. Son, S. Y. Jeong, H. Y. Woo, F. Zhang*
    Sustainable Energy & Fuels  2021, 5, 5825–5832. (2021. 11)

37. Enhanced photomultiplication of organic photodetectors via phosphorescent material incorporation
    J. Wang*, M. Liu, J. Chen, J. H. Son, S. Y. Jeong, J. Xiao, L. Chen, K. Yang, Z. Zhao, H. Y. Woo, X. Zhang, F. Zhang*
    J. Mater. Chem. C. 2021, 9, 16918-16924. (2021. 12)

38. Using Two Compatible Donor Polymers Boosts the Efficiency of Ternary Organic Solar Cells to 17.7%
    W. Peng, Y. Lin*, S. Y. Jeong, Y. Firdaus, Z. Genene, A. Nikitaras, L. Tsetseris, H. Y. Woo, W. Zhu*, T. D. Anthopoulos*, E. Wang*
    Chem. Mater. 2021, 33, 18, 7254–7262 (2021. 9).

39. Ternary Organic Photovoltaic Cells Exhibiting 17.59% Efficiency with Two Compatible Y6 Derivations as Acceptor
    X. Wang, Q. Sun, J. Gao, X. Ma, J. H. Son, S. Y. Jeong, Z. Hu, L. Niu*, H. Y. Woo*, J. Zhang, F. Zhang*
    Solar RRL. 2021, 5(3), 2100007. (2021. 3).

40. Fullerene–Nonfullerene Hybrid Acceptors for Enhanced Light Absorption and Electrical Properties in Organic Solar Cells
    Z. Wu, S. Lee, S. Y. Jeong, M. H. Jee, H. G. Lee, C. Lim, C. Wang, B. J. Kim*, H. Y. Woo*
    Materials Today Energy, 2021, 20, 100651 (2021. 6).

41. Approaching 18% efficiency of ternary organic photovoltaics with wide bandgap polymer donor and well compatible Y6:Y6-1O as acceptor
    X. Ma, A. Zeng, J. Gao, Z. Hu, C. Xu, J. H. Son, S. Y. Jeong, C. Zhang, M. Li, K. Wang, H. Yan, Z. Ma, Y. Wang, H. Y. Woo*, F. Zhang*
    Natl. Sci. Rev. 2021, 8, nwaa305. (2021. 8)

42. A-D-A Type Semiconducting Small Molecules with Bis(alkylsulfanyl)methylene Substituents and Control of Charge Polarity for Organic Field-Effect Transistors
    S. J. Cho, M. J. Kim, Z. Wu, J. H. Son, S. Y. Jeong, S. Lee, J. H. Cho*, H. Y. Woo*
    ACS Appl. Mater. Interfaces. 2020, 12, 37, 41842–41851. (2020. 9. 16)