International Journal Publication

Round-Robin Interlaboratory Comparison of Large-Area Organic Thin-Film and Perovskite Solar Cells

Author affiliations and roles
  1. aDepartment of Chemistry National Central University Taiwan
  2. bPhotovoltaic Efficiency Verification Laboratory (PVEVL) National Central University Taiwan
  3. cMing Chi University of Technology
  4. dWays Technical Corp. Ltd. Taoyuan Taiwan
  5. fDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei Taiwan
  6. gDepartment of Materials Engineering Ming Chi University of Technology New Taipei City Taiwan
  7. hNational Cheng Kung University
  8. iOrganic Electronics Research Center Ming Chi University of Technology New Taipei City Taiwan
  9. jDepartment of Chemical and Materials Engineering College of Engineering Chang Gung University Taoyuan Taiwan
  10. kCenter for Sustainability and Energy Technologies Chang Gung University Taoyuan Taiwan
  11. lInstitute of Chemistry Academia Sinica Taipei Taiwan
  12. mDepartment of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan
  13. nDepartment of Physics and Institute of Nanoscience National Chung Hsing University Taichung Taiwan
  14. oDepartment of Physics Faculty of Mathematics and Natural Sciences Universitas Sumatera Utara Medan Indonesia
  15. pDepartment of Chemistry National Taiwan Normal University Taipei Taiwan
  16. qDepartment of Chemical Engineering National Taiwan University of Science and Technology Taipei Taiwan
  17. rInstitute of Electro‐Optical Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan
  18. sDepartment of Chemical Engineering Institute of Polymer Science and Engineering and Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei Taiwan
  19. tCenter for Condensed Matter Sciences National Taiwan University Taipei Taiwan
  20. uDepartment of Physics National Taiwan University Taipei Taiwan
  21. vResearch Center for Applied Sciences Academia Sinica Taipei Taiwan
  22. wResearch Center for Applied Science, Academia Sinica
  23. xDepartment of Photonics and Program on Key Materials Academy of Innovative Semiconductor and Sustainable Manufacturing National Cheng Kung University Tainan Taiwan
  24. yDepartment of Chemical Engineering National Taiwan University Taipei Taiwan
  25. zCollege of Environment and Resources Ming Chi University of Technology Taoyuan Taiwan
  26. aaChien Hsin University of Science and Technology
  27. abMing Chuan University
  • *Corresponding authors: Chen, Chia-Yuan, Chueh, Chu-Chen, Guo, Tzung-Fang, Chu, Chih-Wei, Wang, Leeyih, Ho, Kuo-Chuan, Chen, Fang-Chung, Chen, Chih-Ping, Tai, Yian, Li, Chun-Ting, Lee, Ming-Way, Wang, Chih-Liang, Sun, Shih-Sheng, Lee, Kun-Mu, Tseng, Zong-Liang, Huang, Yu-Ching, Chou, Pi-Tai, Ko, Chung-Wen, Wu, Chun-Guey.

Solar RRL, e202500538 (2025).

Research topic: Perovskite Solar Cells

Abstract

Organic-thin film and perovskite solar cells are extremely promising because of their rapid progress in photovoltaic conversion efficiency (PCE). Beyond developing new materials and fabrication techniques, accurate performance characterization is essential for research and application. This study reports a round-robin interlaboratory comparison of current density-voltage (J-V) characteristics under standard test conditions (STC) and external quantum efficiency (EQE) spectra for large-area (>1 cm(2)) organic thin-film, perovskite, as well as reference solar cells with distinct spectral responses. Among 20 participating laboratories, the relative deviation in PCE of the samples reaches an unprecedented 111%. A comprehensive analysis identifies critical obstacles to measurement accuracy, including total incident irradiance for the samples, EQE spectrum measurements for spectral mismatch factors (SMM), temperature control, and methodologies for obtaining the J-V curves. Based on these findings, corresponding recommendations are presented to enhance the accuracy of performance characterization for emerging solar cells.

Keywords

organic thin-film photovoltaics (OPV)perovskite solar cells (PSC)round-robin intercomparisonspectral mismatch factor (SMM)standard test conditions (STC)

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1 citing article with DOI, from 1 records indexed by OpenAlex.

  1. Recent advances in data‐driven and artificial intelligence‐integrated perovskite solar cells: From design to self‐driving laboratories ↗

    InfoMat · vol. 8, no. 4, 2026

    DOI: 10.1002/inf2.70124

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