Patents & Publications & Awards – nano-pv.sci.ku.ac.th

Selected Patent

“กรรมวิธีผลิตเซลล์แสงอาทิตย์เพอรอฟสไกท์ปรับปรุงรอยต่อด้วยหมู่ฟังก์ชันของไคโตซานที่สกัดได้จากเปลือกกุ้งกับวัสดุพอลิเมอร์” ธิดารัตน์ สุภาสัย, จันทิกา ชูโชติรส, นพพร รุจิสัมพันธ์, ปรัชญ์ตระกูล เกาะกิ่ง (เลขที่คำขอ 2503003482) 12 กันยายน พ.ศ. 2568
“เซลล์แสงอาทิตย์เพอรอฟสไกต์ชนิดอนินทรีย์ เลขที่คำขอ 2203002768, ยื่นคำขอวันที่ 7 ต.ค. 2565
“สารละลายเพอรอฟสไกท์ชนิดอินทรีย์-อนินทรีย์และกรรมวิธีการผลิต” เลขที่คำขอ 1801007334 , ยื่นคำขอวันที่ 28 พ.ย. 2561
“A spray-nebulous chemical deposition system for thin film preparation”, N. Rujisamphan, T. Supasai and V. Engkasorrarat, June 2017, Thai petty patent no. 12729.

Selected Publications

Koking, P.; Henjongchom, N.; Choochottiros, C.; Supruangnet, R.; Rujisamphan, N.; Supasai, T*. Polyaniline-Enabled Dual Passivation of SnO_x Oxygen Vacancies and Perovskite Surface Defects, ACS Appl. Mater. Interfaces (2026) doi/10.1021/acsami.6c05326.
Adam, I. M; Soe, K. T; Ruengsrisang, W; Ketsombun, E; Supasai, T; Sutthibutpong, T; Rujisamphan, N; Thongprong, N*. SnO₂/Perovskite Interface Engineering with Mixed-Halide Potassium Salts: A Pathway to Efficient and Stable Perovskite Solar Cells through a Combined Experimental-Density Functional Theory Approach, ACS Appl. Mater. Interfaces 17 (2025) 31000−31012.
Rujisamphan, N;* Soe, K; Moontragoon, P; Yaro, A. A; Ketsombun, E; Supruangnet, R; Luo, D; Huang, Z.-H; Shun-Wei Liu, S-W; Supasai, T; Two-Dimensional Surface Passivation with Distinct Cations Enabling High Efficiency and Mechanical Durability in Flexible Perovskite Solar Cells, ChemSusChem 18 (2025) e202500232.
Soe, K; Supruangnet, R; Euaruksakul, C; Wongpinij, T; Yaro, A. A; Thongprong, N. Ketsombun, E; Kinkasorn, S; Ruengsrisang, W; Supasai, T; Rujisamphan, N*. Mitigating Surface and Grain Boundary Defects in Perovskite Solar Cells Through Guanidinium Halide Passivation, Solar RRL, 2025; 0:e2500319 https://doi.org/10.1002/solr.202500319.
Henjongchom, N.; Ruengsrisang, W.; Soe, K.T.; Kayunkid, N.; Thongprong*, N.; Ketsombun, E.; Chanlek, N.; Supruangnet, R.; Saiyasombat, C.; Rujisamphan, N.; Supasai*, T. “Cesium Moderation and Structural Transformation on α-CsPbI2Br Perovskite Durability via Cation Retarding Migration: A Combined Simulation and Experimental Study” Solar Energy 288 (2025) 113290.
Manjunath, S.B.; Soe, K.T.; Supasai, T.; Rujisamphan*, N.; Devadiga, D. and Nagaraja,* A. T. “Nonbonding Electron Pairs in Cyano and Carbonyl Groups Act as Defect Passivation in Hybrid Perovskite Solar Cells” ACS Appl. Energy Mater. 2024, 7, 10294−10306.
Azad, F.; Supasai, T.; Yaro, A. A.; Soe, K.T. Thongprong,* ; Ketsombun, E.; Kayunkid, N.; Supruangnet, R.; Chanlek, N.; Chapon, P. and Rujisamphan, N.”Enhancing Perovskite Thin Films with Butylammonium Iodide-Lead-Tetrahydrofuran: Surface Healing and 2D Formation in Annealing-Free Single-Crystal Films for Solar Cell Applications“, ACS mater. lett. 2024, 6, 1264−1276.

Soe, K.T.; Thansamai, S.; Thongprong, N.; Ruengsrisang, W.; Muhammad, I.A.; Ketsombun, E.; Supruangnet, R.; Kaewprajak, A.; Kumnorkaew, P.; Saetang, V.; Supasai, T. and Rujisamphan, N. “Simultaneous Surface Modification and Defect Passivation on Tin Oxide–Perovskite Interfaces using Pseudohalide Salt of Sodium Tetrafluoroborate”, Solar RRL, 2022, 2200964.
Smerchit, T; Thongprong, N; Ruengsrisang, W; Muhammad, I; Soe, K. T; Thansamai, S; Chanlek, N; Nakajima, H; Supruangnet, R; Saetang, V; Kaewprajak, A; Supasai, T; Rujisamphan, N. “Combined Experimental and Simulation Studies of Lithium and Cobalt-Modified TiO₂ and Their Impacts on the Performance and Stability of Perovskite Solar Cells“, Adv. Mater. Interfaces 2022, 2201632.
Supasai, T.; Soe, K.S.; Smerchit, T.; Azad, F.; Thongprong, N.; Kayunkid, N.; Tang, I. M.; Kumnorkaew, P.; Kaewprajak, A.; Tangwarodomnukun, V.; Li, Y.; Chanyawadee, S.; Yuan, J. and Rujisamphan, N. “Unveiling the Influence of the Spectral Irradiance of Indoor Light-Emitting Diodes on the Photovoltaics of a Methylammonium Lead Iodide-Based Device“, Advanced Energy and Sustainability Research, 2022, 3, 2100143.
Rosungnern, U.; Kumnorkaew, P.; Kayunkid, N.; Chanlek, N,; Li, Y.; Tang, I-M,; Thongprong, N.; Rujisamphan, N.; and Supasai, T., “Impact of a Spun-Cast MoO_x Layer on the Enhanced Moisture Stability and Performance-Limiting Behaviors of Perovskite Solar Cells“, ACS Applied Energy Materials, 2021, 4, 3169−3181.
N. Thongprong, T. Supasai, Y. Li, I-M. Tang, and N. Rujisamphan “Insights into Recombination Processes from Light Intensity-Dependent Open-Circuit Voltages and ldeality Factors in Planar Perovskite Solar Cells” Energy Technology, (2020) 1901196/1-1901196/9.
K. Pinsuwan, C. Boonthum , T. Supasai , S. Sahasithiwat, P. Kumnorkaew, P. Kanjanaboos “Solar perovskite thin films with enhanced mechanical, thermal, UV, and moisture stability via vacuum-assisted deposition”. Journal of Materials Science, 55 (2020) 3484–3494.
N. Henjongchom, N. Rujisamphan, T. S. Nti, P. Kumnorkaew, I-M. Tang, V. Amornkitbumrung, T. Supasai “Ultrasonically sprayed-on perovskite solar cells-effects of organic cation on defect formation of CH3NH3PbI3 films”. Current Applied Physics, 19 (2019) 1427-1435.
N. Rujisamphan, H. Cramer, R. Murray, I-M. Tang, T. Sutthibutpong, V. Amornkitbamrung, S. I. Shah, T. Supasai “Revealing the diffusion of aluminum in organic solar cells”. Japanese Journal of Applied Physics, 58 (2019) 050904/1-050904/4.
P. Limpamanoch, N. Rujisamphan, P. Kumnorkaew, V. Amornkitbamrung, I-M. Tang, Q. Zhang, T. Supasai, “Understanding effects of cesium in CH(NH₂)₂PbI₃ for stabilizing CH(NH₂)₂PbI₃/CsPbI₃ interface under UV illumination”. Journal of Physical Chemistry C, 123 (2019) 12117-12125.
A. Naikaew, P. Kumnorkaew, T. Supasai, S. Suwanna, R. Hunkao, T. Srikhirin, P. Kanjanaboos, “Enhancing high humidity stability of quasi-2D perovskite thin films through mixed cation doping and solvent engineering“. ChemNanoMat. 2019, DOI: 10.1002/ cnma.201900189.
T. S. Ntia, T. Supasai, I-M. Tang, V. Amornkitbumrung, J. Yuan, Y. Li, T. Dittrich, N. Rujisamphan, N. “An analytical approach to CH₃NH₃PbI₃ perovskite solar cells based on different hole transport materials“. Physica Status Solidi A, (2019) 1900087, DOI: 10.1002/pssa.201900087.
J. Ponchai, P. Kaewurai, C. Boonthum, K. Pinsuwan, T. Supasai, S. Sahasithiwat, P. Kanjanaboos, “Modifying morphology and defects of low-dimensional, semi-transparentperovskite thin films via solvent type”, RSC Advances, 9 (2019) 12047-12054.
X. Yu, L. Wu, H. Hu, M. Chen, Y.Tan, D. Yang, Q. Pan, Q. Zhang, T. Supasai, Q. Zhang, “Cs₄PbX₆ (X = Cl, Br, I) Nanocrystals: Preparation, water-triggered transformation behavior, and anti-counterfeiting application”, Langmuir, 34(35) (2018) 10363-10370.
N. Henjongchom, N. Rujisamphan, I-M. Tang, and T. Supasai, “Surface photovoltage spectroscopy study of ultrasonically sprayed-aerosol CH₃NH₃PbI₃ perovskite crystals”, Physica Status Solidi A (2018) 1800133, DOI: 10.1002/pssa.201800133.

T.Supasai, V. Amornkitbamrung, C. Thanachayanontd, I-M. Tang, T. Sutthibutpong, N. Rujisamphan, “Visualizing nanoscale phase morphology for understanding photovoltaic performance of PTB7: PC71BM solar cell”, Applied Surface Science, 422 (2017) 505-517.
T. Supasai, N. Henjongchom, I-M. Tang, F. Deng, N. Rujisamphan, “Compact nanostructured TiO₂ deposited by aerosol spray pyrolysis for the hole-blocking layer in a CH₃NH₃PbI₃ perovskite solar cell”, Solar Energy, 136 (2016) 515-524.
N. Rujisamphan, R. E. Murray, F. Deng, T. Supasai, “Co-sputtered metal and polymer nanocomposite films and their electrical responses for gas sensing application”, Applied Surface Science, 368 (2016) 114-121.
N. Rujisamphan, T. Supasai, Th. Dittrich, “Photoinduced charge dissociation and transport at P3HT/ITO interfaces: studied by modulated surface spectroscopy”, Applied Physics A, 122:2 (2016) 1-6.
T. Supasai, N. Rujisamphan, K. Ullrich, A. Chemseddine, Th. Dittrich, “Formation of a passivating CH₃NH₃PbI₃/PbI₂ interface during moderate heating of CH₃NH₃PbI₃layers”, Applied Physics Letters, 103 (2013) 183906.
T. Supasai, S. Dangtip, P. Learngarunsri, N. Boonyopakorn, A. Wisitsoraat, S.K. Hodak, “Influence of Temperature Annealing on Optical Properties of SrTiO₃/BaTiO₃ Multilayered Films on Indium Tin Oxide,” Applied Surface Science 256 (2010) 4462-4467.
S. K. Hodak, T. Supasai, A. Wisitsoraat, H. Jose Hodak, “Design of Low Cost Gas Sensor Based on SrTiO₃ and BaTiO₃ Films”, Journal of Nanoscience and Nanotechnology 10 (2010) 7236-7238.
S. K. Hodak, T. Supasai, B. Paosawatyanyong, K. Kamlangkla and V. Pavarajarn, “Enhancement of the Hydrophobicity of Silk by SF₆ Plasma”, Applied Surface Science, 254 (2008) 4744-4749.
B. Paosawatyanyong, T. Supasai, V. Pavarajarn, and S. K. Hodak, “Hydrophobicity Improvement of PET Fabrics after SF₆ Plasma Treatment, International Polymer Processing, Invited Paper, 23 (2008) 135-139.
T. Supasai, S.K. Hodak and B. Paosawatyanyong, “Effect of SF₆ Plasma Treatment on Hydrophobicity Improvement of Fabrics”, J. Fiz. Mal. 28 (2007) 1-6.

Other Published Papers

N. Rujisamphan, R. E. Murray, S. Ismat Shah, T. Supasai, “Effects of rf Power on Chemical and Physical Structure of Polytetrafluoroethylene Thin Films”, ChiangMai J. Sci. 44 (2017) 640-648.
T. Supasai, S. K. Hodak and B. Paosawatyanyong, “Fabric and fiber modification using radio frequency plasma process, National symposium on Physics Graduate Research, 2006, Conference Paper.

Awards

National Research Award 2024, Excellence in Research Award for the project “Synthesis and Analysis of High-Efficiency Thai Prototype Inorganic Perovskite Solar Cells” from the National Research Council of Thailand (NRCT)
Outstanding publication award 2023 from the Faculty of Science, Kasetsart University in 2023
Annual Invention Award 2020: Honorary Mention for the “Surface Charge Separation Measurement System for Monolayer Materials in Photocatalytic and Solar Cell Research,” from the National Research Council of Thailand (NRCT)
Outstanding publication award 2017 from the Faculty of Science, Kasetsart University
2^nd Best oral presentation award in Physical Science Symposium : The Science Forum 2008, Chulalongkorn University