1. Deep Singh, Masatoshi Yanagida, Yasuhiro Shirai, Sudhanshu Mallick, Dhruba B. Khadka. Unraveling perovskite solar cell degradation via interfacial surface recombination and ion migration by analytical and drift–diffusion modeling. Solar Energy Materials and Solar Cells. 301 114322-114322-9. 2026. Open Access
2. Jannatul Ferdous, Md. Emrul Kayesh, Wipakorn Jevasuwan, Siliang Cao, Naoki Fukata, Ashraful Islam. Vanadyl oxalate as an effective hole transporting layer for enhanced tin-based perovskite solar cell performance. Chemical Engineering Journal. 538 176419-176419-9. 2026. Open Access
3. Shanas Fatima, Masatoshi Yanagida, Yasuhiro Shirai, Sunil Kumar Singh, Dhruba B. Khadka. Iodine-assisted defect control in AgBiI4 for boosting lead-free photovoltaics. Applied Surface Science. 749 167878-167878. 2026. Open Access
4. Atif Suhail, Md. Abdul Karim, Chinmay Barman, Vishnuvardhan Reddy Chappidi, Ashraful Islam, Sai Santosh Kumar Raavi. Lead-free tin halide perovskites: progress, photophysics, and applications in next-generation optoelectronics. Journal of Physics: Condensed Matter. 38 [36] 363002-363002-28. 2026. Open Access
5. Aman Shukla, Mai Otake, Masatoshi Yanagida, Koichi Yamashita, Azusa Muraoka, Yasuhiro Shirai, Dhruba B. Khadka. Unraveling the effect of binary metal fluoride in tin perovskite solar cells. Journal of Materials Chemistry A. 14 [46] 31131-31142. 2026. Open Access
6. Tanka Raj Rana, Mazhar Abbas, Ethan Schwartz, Dhruba B. Khadka, Tucker Murrey, Jinyang Cai, Joseph Sweitzer, Hannah Contreras, Qian-Qian Zhang, John Devin MacKenzie. Scalable Buried Passivation of Wide-Bandgap Perovskite Solar Cells. ACS Energy Letters. 11 [6] 4420-4427. 2026. Open Access
7. Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam. Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells. Advanced Functional Materials. 36 [50] e76072-1-e76072-14. 2026. Open Access
8. Shamim Ahmmed, Md. Abdul Karim, Md. Emrul Kayesh, Masatoshi Yanagida, Yasuhiro Shirai, Kensuke Kojima, Akito Hayashi, Jun Azuma, Kiyoto Matsuishi, Ashraful Islam. Methoxy-Functionalized Conjugated Self-Assembled Monolayers as a Hole-Selective Contact for Inverted Perovskite Solar Cells. ACS Applied Materials & Interfaces. 18 [20] 28728-28736. 2026. Open Access
9. Md. Abdul Karim, Shamim Ahmmed, Siliang Cao, Md. Emrul Kayesh, Yulu He, Md. Ataur Rahman, Wasif Islam Chowdhury, Masatoshi Yanagida, Yasuhiro Shirai, Ashraful Islam. Chelating Coordination Regulates Perovskite Crystallization and Defect Passivation in Sn–Pb Perovskite Solar Cells. Small. 22 [27] e00050-1-e00050-16. 2026. Open Access

2025

1. Dhruba B. Khadka, Masatoshi Yanagida, Yasuhiro Shirai. Assessing degradation in perovskite solar cells via thermal hysteresis of photocurrent and device simulation. Solar Energy Materials and Solar Cells. 281 113319-113319-8. 2025. Open Access
2. Jannatul Ferdous, Md. Emrul Kayesh, Mostafa F. Abdelbar, Wipakorn Jevasuwan, Ashraful Islam, Naoki Fukata. Suppressing ZnO-Induced Decomposition in Perovskite Solar Cells via Glycine-Based Chelation Strategy. ACS Applied Materials & Interfaces. 17 [46] 63342-63352. 2025. Open Access
3. Ryousuke Ishikawa, Hayato Okawa, Masatoshi Yanagida, Yasuhiro Shirai, Makoto Konagai. Outdoor Performance and Thermally Accelerated Degradation of Inverted Perovskite Solar Cells. Solar RRL. 9 [22] e202500524-1-e202500524-7. 2025. Open Access
4. Xun Liu, Takeo Ohsawa, Jian Xu, Masatoshi Yanagida, Kohsei Takahashi, Takashi Takeda, Tetsuo Kishi, Tetsuji Yano, Hiroyo Segawa, Naoki Ohashi. Synthesis and characterization of oxynitride glass films to develop a host for divalent-europium-centres. Journal of Materials Chemistry C. 13 [35] 18286-18297. 2025. Open Access
5. Aman Shukla, Dhruba B. Khadka, Chunqing Li, Masahiro Rikukawa, Yuko Takeoka, Ryoji Sahara, Masatoshi Yanagida, Yasuhiro Shirai. Defect mitigation via fullerene-based functional additives for enhanced efficiency and stability in tin perovskite solar cells. Journal of Materials Chemistry A. 13 [29] 23487-23498. 2025. Open Access
6. Muhammad Waqas, Dhruba B. Khadka, Abdul Haseeb Hassan Khan, Ying-Chiao Wang. Fullerene-driven photocarrier processes in perovskite solar cells: recent advances. Nanoscale. 17 [26] 15648-15675. 2025. Open Access
7. Siliang Cao, Yulu He, Md. Abdul Karim, Shamim Ahmmed, Md. Emrul Kayesh, Yun Jia, Takeaki Sakurai, Ashraful Islam. Suppressing Light-Induced Phase Segregation via Dual Interface Modification for High-Performance and Stable Inverted CsPbIBr₂ Perovskite Solar Cells. ACS Applied Materials & Interfaces. 17 [23] 34794-34807. 2025. Open Access
8. Md. Abdul Karim, Yulu He, Wasif Islam Chowdhury, Md. Emrul Kayesh, Towhid H. Chowdhury, Shamim Ahmmed, Takeaki Sakurai, Ashraful Islam. Surface Stoichiometric Tuning for High‐Efficiency and Light Illumination Stability in Sn–Pb Perovskite Solar Cells by PbBr₂ Wet Surface Treatment. Solar RRL. 9 [12] 2500225-1-2500225-9. 2025. Open Access
9. Dhruba B. Khadka, Yan-Chen Kuo, Yi Zhen Li, Muhammad Waqas, You-Jia Xu, Masatoshi Yanagida, Hiroshi Nishihara, Kazuhito Tsukagoshi, Mitch M. C. Chou, Yasuhiro Shirai, Ying-Chiao Wang. Coordination Nanosheets Stabilizing Efficient Tin-Based Perovskite Solar Cells. ACS Applied Materials & Interfaces. 17 [18] 26813-26822. 2025. Open Access
10. Shanas Fatima, Dhruba B. Khadka, Masatoshi Yanagida, Sunil Kumar Singh, Yasuhiro Shirai. Effect of Alkali-Metal Additive on Rudorffite AgBiI₄-Based Pb-Free Solar Cells. ACS Applied Energy Materials. 8 [7] 4601-4608. 2025. Open Access
11. Shamim Ahmmed, Md. Abdul Karim, Yulu He, Siliang Cao, Md. Emrul Kayesh, Kiyoto Matsuishi, Ashraful Islam. Small Molecular Organic Hole Transport Layer for Efficient Inverted Perovskite Solar Cells. Solar RRL. 9 [7] 2500017-1-2500017-9. 2025. Open Access
12. Jannatul Ferdous, Md. Emrul Kayesh, Wipakorn Jevasuwan, Naoki Fukata, Ashraful Islam. Solution‐Processed SnO _x as a Hole‐Transporting Material for Stable Sn‐Based Perovskite Solar Cell. Solar RRL. 9 [7] 2500047-1-2500047-8. 2025. Open Access
13. Dhruba B. Khadka, Yasuhiro Shirai, Ryoji Sahara, Masatoshi Yanagida, Kenjiro Miyano. Ameliorating Defects in Wide Bandgap Tin Perovskite Solar Cells Using Fluorinated Solvent and Hydrazide. Small. 21 [17] 2410048-1-2410048-10. 2025. Open Access
14. Md. Emrul Kayesh, Yulu He, Md. Abdul Karim, Siliang Cao, Shamim Ahmmed, Yasuhiro Shirai, Ashraful Islam. Optimization of Crystal Growth and Defect Passivation of FASnI₃ Film by Using 2-Pyridylthiourea for Sn-Based Perovskite Solar Cells. ACS Applied Energy Materials. 8 [4] 2043-2049. 2025. Open Access

2024

1. Md. Abdul Karim, Vishnuvardhan Reddy Chappidi, Md. Emrul Kayesh, Sai Santosh Kumar Raavi, Ashraful Islam. Crosslinker additive integration: A strategy to boost performance and stability in FASnI3 perovskite solar cells. Solar Energy. 278 112761-112761-7. 2024. Open Access
2. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, Hitoshi Ota, Andrey Lyalin, Tetsuya Taketsugu, Kenjiro Miyano. Defect passivation in methylammonium/bromine free inverted perovskite solar cells using charge-modulated molecular bonding. Nature Communications. 15 [1] 882. 2024. Open Access
3. Vishnuvardhan Reddy Chappidi, Sudhanshu Kumar Nayak, Md. Emrul Kayesh, Md. Abdul Karim, Yulu He, Ashraful Islam, Sai Santosh Kumar Raavi. Elucidating the improved properties of defect engineered lanthanum-doped nickel oxide as hole-transport layer in triple-cation perovskite solar cells. Solar Energy. 281 112888-112888-9. 2024. Open Access
4. Md. Emrul Kayesh, Md. Abdul Karim, Yulu He, Yasuhiro Shirai, Masatoshi Yanagida, Ashraful Islam. Minimization of Energy Level Mismatch of PCBM and Surface Passivation for Highly Stable Sn‐Based Perovskite Solar Cells by Doping n‐Type Polymer. Small. 20 [43] 2402896-1-2402896-8. 2024. Open Access
5. Shamim Ahmmed, Yulu He, Md. Emrul Kayesh, Md. Abdul Karim, Kiyoto Matsuishi, Ashraful Islam. Ce-Doped SnO₂ Electron Transport Layer for Minimizing Open Circuit Voltage Loss in Lead Perovskite Solar Cells. ACS Applied Materials & Interfaces. 16 [25] 32282-32290. 2024. Open Access
6. Palivela Siva Gangadhar, Silve Dasgupta, Prakriti R. Bangal, Towhid H. Chowdhury, Ashraful Islam, Lingamallu Giribabu. Influence of the Selenophene Auxiliary Acceptor in Porphyrin Sensitizers for High-Performance Dye-Sensitized Solar Cells. ACS Applied Energy Materials. 7 [8] 3309-3320. 2024. Open Access

2023

1. Yulu He, Muhammad Monirul Islam, Md. Abdul Karim, Md. Emrul Kayesh, Towhid Hossain Chowdhury, Ashraful Islam. Study of the Heat‐Induced Degradation Mechanism in PbI₂‐Excess Perovskite Solar Cells. Solar RRL. 7 [22] 2300580. 2023.
2. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, James W. Ryan, Kenjiro Miyano. Advancing Efficiency and Stability of Lead, Tin, and Lead/Tin Perovskite Solar Cells: Strategies and Perspectives. Solar RRL. 7 [21] 2300535. 2023. Open Access
3. Md. Abdul Karim, Kiyoto Matsuishi, Md. Emrul Kayesh, Yulu He, Ashraful Islam. Inhibition of Sn²⁺ Oxidation in FASnI₃ Perovskite Precursor Solution and Enhanced Stability of Perovskite Solar Cells by Reductive Additive. ACS Applied Materials & Interfaces. 15 [39] 45823-45833. 2023.
4. Yulu He, Chisato Niikura, Porponth Sichanugrist, Ashraful Islam. Antireflection effect of high haze FTO for improving short circuit current density of perovskite solar cells. Materials Science in Semiconductor Processing. 164 107605. 2023.
5. Siliang Cao, Ashraful Islam. Numerical investigation of structural optimization and defect suppression for high-performance perovskite solar cells via SCAPS-1D. Japanese Journal of Applied Physics. 62 [SK] SK1052. 2023. Open Access
6. Koteshwar Devulapally, Towhid H Chowdhury, Yulu He, Ashraful Islam. Triphenylimidazole substituted D-π-D porphyrin based dopant-free hole transport materials for perovskite solar cells. Journal of Photochemistry and Photobiology. 16 100188. 2023.
7. Jiahao Huang, Yasuhiro Shirai. A stabilized γ-CsPbI3 by poly(allylamine hydrochloride) for wide-band gap perovskites solar cells with enhanced performance. Journal of Solid State Chemistry. 324 124087. 2023.
8. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, Terumasa Tadano, Kenjiro Miyano. Alleviating Defect and Oxidation in Tin Perovskite Solar Cells Using a Bidentate Ligand. Chemistry of Materials. 35 [11] 4250-4258. 2023. Open Access
9. A. G. Al-Gamal, Ahmed Mourtada Elseman, M. Abdel-Shakour, T. H. Chowdhury, Naoki Fukata, Ashraful Islam. Synergistic effect of integrating N-functionalized graphene and PEDOT:PSS as hole transporter bilayer for high-performance perovskite solar cells. Advanced Composites and Hybrid Materials. 6 [3] 103. 2023. Open Access
10. Muhammad Abdel-Shakour, Kiyoto Matsuishi, Towhid H. Chowdhury, Ashraful Islam. Regulated oxidation and moisture permeation via sulfinic acid based additive enables highly efficient and stable tin-based perovskite solar cells. Solar Energy Materials and Solar Cells. 254 112241. 2023.
11. Ibrahima Gueye, Yasuhiro Shirai, Takahiro Nagata, Takashi Tsuchiya, Dhruba B. Khadka, Masatoshi Yanagida, Okkyun Seo, Kenjiro Miyano, Osami Sakata. Analysis of Iodide Transport on Methyl Ammonium Lead Iodide Perovskite Solar Cell Structure Through Operando Hard X-ray Photoelectron Spectroscopy. Chemistry of Materials. 35 [5] 1948-1960. 2023.
12. A. G. Al-Gamal, Ahmed Mourtada Elseman, T. H. Chowdhury, Ashraful Islam. Promising Nitrogen-Doped Graphene Derivatives; A Case Study for Preparations, Fabrication Mechanisms, and Applications in Perovskite Solar Cells. Topics in Current Chemistry. 381 [1] 6. 2023.

1. 白井 康裕, 柳田 真利. 非鉛系ハロゲン化金属ペロブスカイト太陽電池. ペロブスカイト太陽電池の最新開発・製造・評価・応用技術―高効率化・大面積化／安定性・耐久性向上／環境対応―. 2023.

1. Dhruba B. Khadka, Masatoshi Yanagida, Yasuhiro Shirai. Investigation of Degradation in Perovskite Solar Cells Using Thermal Hysteresis of Photocurrent. 2025 IEEE 53rd Photovoltaic Specialists Conference (PVSC). 0730-0732. 2025. Open Access
2. Dhruba B. Khadka, Masatoshi Yanagida, Roji Sahara, Yasuhiro Shirai. Surface Passivation of Sn-Based Wide Band Gap Perovskite Solar Cells Using Functional Molecules. 2025 IEEE 53rd Photovoltaic Specialists Conference (PVSC). 0680-0682. 2025. Open Access

2024

1. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, Kenjiro Miyano. Effect of Charge-Modulated Molecular Passivator on Methylammonium/Bromine-Free Inverted Perovskite Solar Cells. 2024 IEEE 52nd Photovoltaic Specialist Conference (PVSC). 0002-0004. 2024. Open Access

2023

1. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, Kenjiro Miyano. Modulating Efficiency and Stability of Methylammonium/Br-Free Perovskite Solar Cells Using Fluoroarene Hydrazine. 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC). 2023. Open Access
2. Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, Kenjiro Miyano. Effect of Bidentate Ligand Additive in Tin Perovskite Solar Cells. 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC). 2023. Open Access

1. 野口 秀典, 伊藤 未希雄, 田代 悠人, 柳田 真利. フェムト秒中赤外分光によるペロブスカイトヘテロ界面の電子抽出過程の解析. 2026電気化学秋季大会. 2026.
2. SHUKLA Aman, Mai Otake, YANAGIDA, Masatoshi, Koichi Yamashita, Azusa Muraoka, SHIRAI, Yasuhiro, KHADKA, Dhruba Bahadur. How do Binary Metal Fluorides Rewire Defect Chemistry and Carrier Transport in Lead-Free Tin Perovskite Solar Cells?. International Conference on Halide Perovskites (HyPe-2026). 2026.
3. SINGH Vishal, YANAGIDA, Masatoshi, Prabhakar Singh, SHIRAI, Yasuhiro, KHADKA, Dhruba Bahadur. Additive Engineering of SnPb-Based Narrow Band Gap Perovskite Solar Cells Using Functional Molecule. 43rd European Photovoltaic Solar Energy Conference and Exhibition. 2026.
4. KHADKA, Dhruba Bahadur, SHUKLA Aman, Mai Otake, YANAGIDA, Masatoshi, Koichi Yamashita, Azusa Muraoka, SHIRAI, Yasuhiro. Effect of Binary Metal Fluoride in Tin Perovskite Solar Cells. The 87th JSAP Autumn Meeting 2026. 2026.

2025

1. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, WANG Ying-Chiao, SHIRAI, Yasuhiro. Tin-Based Perovskite Solar Cells with Terpyridine-Zinc(II) Coordination Nanosheet. Materials Research Meeting 2025 (MRM 2025). 2025.
2. KHADKA, Dhruba Bahadur, シュクラ アマン, Chunqing Li, Masahiro Rikukawa, Yuko Takeoka, SAHARA, Ryoji, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Effect of Fullerene-Based Functional Derivatives in Sn-Perovskite Solar Cells. 86th JSAP AUTUMN Meeting (第86回応用物理学会秋季学術講演会). 2025.
3. 柳生 進二郎, 長田 貴弘, 安田 剛, 柳田 真利, 松波 成行, 桑田 武, 中島 嘉之. 光電子収量分光(PYS)データのオープン化と ARIM データ基盤を介したデータセットの整備. 第86回応用物理学会秋季学術講演会. 2025.
4. FATIMA Shanas, KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, Sunil Kumar Singh, SHIRAI, Yasuhiro. Tailoring AgBiI₄ Lead-Free Solar Cells Using Alkali Halide Additive. 86th JSAP AUTUMN Meeting (第86回応用物理学会秋季学術講演会). 2025.
5. 野口 秀典, 伊藤 未希雄, 柳田 真利. ペロブスカイトにおける光励起初期キャリア挙動のフェムト秒中赤外過渡吸収分光解析. 2025電気化学秋季大会. 2025.
6. KHADKA, Dhruba Bahadur, WANG Ying-Chiao, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Halide perovskite solar cells with terpyridine-zinc(ii) coordination nanosheets additive. Global Photovoltaic Conference 2025 (GPVC 2025). 2025.
7. 劉 珣, OHSAWA, Takeo, XU, Jian, YANAGIDA, Masatoshi, TAKAHASHI, Kohsei, TAKEDA, Takashi, 岸 哲生, 矢野 哲司, SEGAWA, Hiroyo, OHASHI, Naoki. Nitridation behavior on synthesis of oxynitride glass films by sol-gel process followed by ammonolysis. 17th International Conference on the Physics of Non-Crystalline Solids (PNCS 17). 2025.
8. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, SAHARA, Ryoji, SHIRAI, Yasuhiro. Surface Passivation of Sn-Based Wide Band Gap Perovskite Solar Cells Using Functional Molecules. 53rd IEEE Photovoltaic Specialists Conference (PVSC 53). 2025. Open Access
9. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Investigation of Degradation in Perovskite Solar Cells Using Thermal Hysteresis of Photocurrent. 53rd IEEE Photovoltaic Specialists Conference (PVSC 53). 2025. Open Access
10. SINGH Deep, KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, Sudhanshu Mallick, SHIRAI, Yasuhiro. Investigation Of Degradation of Perovskite Solar Cell Using Analytical Drift Diffusion Model. 22nd "Next Generation Photovoltaic Power Generation Systems" 第22回「次世代の太陽光発電システム」シンポジウム. 2025. Open Access
11. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Molecular Passivation of Wide Bandgap Tin Perovskite Solar Cells Using Fluorinated Solvent and Multifunctional Hydrazide Derivative. Material Research Society -Spring Meeting -2025 (2025 MRS Spring Meeting & Exhibit). 2025.
12. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Exploration of Degradation in Perovskite Solar Cells via Thermal Hysteresis of Photocurrent and Capacitance. Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP25). 2025. Open Access

2024

1. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Modulating Defects in Wide Bandgap Tin Perovskite Solar Cells through Molecular Passivation. PVSEC-35. 2024. Open Access
2. FERDOUS, Jannatul, JEVASUWAN, Wipakorn, KAYESH Md Emrul, ISLAM, Ashraful, FUKATA, Naoki. Tin oxide nanoparticle as hole transporting layer for highly stable Sn-based perovskite solar cells. The 35th International Photovoltaic Science and Engineering Conference (PVSEC-35). 2024.
3. KHADKA, Dhruba Bahadur, YANAGIDA, Masatoshi, SHIRAI, Yasuhiro. Investigation of Degradation in Perovskite Solar Cells Using Thermal Hysteresis of Photocurrent. 21th Next Generation Photovoltaic Power Generation Systems Symposium. 2024.
4. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, OTA, Hitoshi, MIYANO, Kenjiro. Synergistic Effect of Charge-Modulated Molecular Passivation in MA/Br-Free Perovskite Solar Cells. 2024 MRS Spring Meeting & Exhibit. 2024.
5. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Effect of Bifunctional Molecular Passivator for Modulating Efficiency and Stability of Inverted Perovskite Solar Cells. Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24). 2024.

2023

1. 劉 珣, XU, Jian, TAKAHASHI, Kohsei, TAKEDA, Takashi, YANAGIDA, Masatoshi, 岸 哲生, SEGAWA, Hiroyo, OHASHI, Naoki. Luminescent-down shifting properties of Eu2+-doped Sr-Si-Al-O-N glass films synthesized via the sol-gel method and ammonolysis. MRM2023. 2023.
2. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Bidentate Ligand Additive Tin Perovskite Solar Cells. 第20回「次世代の太陽光発電システム」シンポジウム （第3回日本太陽光発電学会学術講演会） . 2023.
3. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Effect of Bidentate Ligand Additive in Tin Perovskite Solar Cells. 50th IEEE Photovoltaic Specialists Conference (PVSC 50). 2023.
4. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Modulating Efficiency and stability of Methylammonium/Br-Free Perovskite Solar Cells Using Fluoroarene Hydrazine. 50th IEEE Photovoltaic Specialists Conference (PVSC 50). 2023. Open Access
5. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Molecular Passivation for High-Efficiency and Stable Methylammonium-Free Perovskite Solar Cells with Fluorinated Supramolecules. The 1st KOSEN Research International Symposium. 2023. Open Access
6. KHADKA, Dhruba Bahadur, SHIRAI, Yasuhiro, YANAGIDA, Masatoshi, MIYANO, Kenjiro. Surface Passivation with Multifunctional Fluoroarene Molecule for High-Efficiency and Stable MA-Free Perovskite Solar Cells. Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP23). 2023.