| Publication Year | Author | Title | Publication Title | DOI | Url | Pages | Issue | Volume |
|---|---|---|---|---|---|---|---|---|
| 2016 | Syu, Yu-Kai; Tingare, Yogesh; Yeh, Chen-Yu; Yang, Jih-Sheng; Wu, Jih-Jen | Panchromatic engineering for efficient zinc oxide flexible dye-sensitized solar cells using porphyrin and indoline dyes | RSC Advances | 10.1039/C6RA09262D | https://pubs.rsc.org/en/content/articlelanding/2016/ra/c6ra09262d | 59273-59279 | 64 | 6 |
| 2016 | Syu, Yu-Kai; Tingare, Yogesh; Lin, Shou-Yen; Yeh, Chen-Yu; Wu, Jih-Jen | Porphyrin Dye-Sensitized Zinc Oxide Aggregated Anodes for Use in Solar Cells | Molecules | 10.3390/molecules21081025 | https://www.mdpi.com/1420-3049/21/8/1025 | 1025 | 8 | 21 |
| 2015 | Higashino, Tomohiro; Fujimori, Yamato; Sugiura, Kenichi; Tsuji, Yukihiro; Ito, Seigo; Imahori, Hiroshi | Tropolone as a High-Performance Robust Anchoring Group for Dye-Sensitized Solar Cells | Angewandte Chemie International Edition | 10.1002/anie.201502951 | https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201502951 | 9052-9056 | 31 | 54 |
| 2016 | Yen, Chih-Ping; Yu, Pin-Feng; Wang, Jyhpyng; Lin, Jiunn-Yuan; Chen, Yen-Mu; Chen, Szu-yuan | Deposition of organic dyes for dye-sensitized solar cell by using matrix-assisted pulsed laser evaporation | AIP Advances | 10.1063/1.4961380 | https://doi.org/10.1063/1.4961380 | 085011 | 8 | 6 |
| 2017 | Lee, Geon Hyeong; and Kim, Young Sik | Theoretical study of novel porphyrin-based dye for efficient dye-sensitized solar cell | Molecular Crystals and Liquid Crystals | 10.1080/15421406.2016.1277636 | https://doi.org/10.1080/15421406.2016.1277636 | 168-174 | 1 | 645 |
| 2023 | Demirci, Yiğit Can; Çakar, Soner; Sevim, Altuğ Mert; Gül, Ahmet; Özacar, Mahmut | DSSCs based on unsymmetrical A3B type Zn(II) and TiO(IV) naphthalenephthalocyanine/porphyrin cocktail dyes: A potential alternative for ruthenium based sensitizers | Journal of Photochemistry and Photobiology A: Chemistry | 10.1016/j.jphotochem.2023.114642 | https://www.sciencedirect.com/science/article/pii/S1010603023001077 | 114642 | 440 | |
| 2025 | Süerkan, Şeyma Nur; Arslan, Nuray; Gökçeören, Argun Talat; Çakar, Soner; Sevim, Altuğ Mert; Gül, Ahmet; Özacar, Mahmut | A3B type Zn(II) phthalocyanines and porphyrin cocktail dye sensitizers for highly efficient DSSCs | Journal of Photochemistry and Photobiology A: Chemistry | 10.1016/j.jphotochem.2025.116333 | https://www.sciencedirect.com/science/article/pii/S1010603025000735 | 116333 | 464 | |
| 2023 | Arslan, Nuray; Yildirir, Şeyma Nur; Sevim, Altuğ Mert; Çakar, Soner; Özacar, Mahmut; Gül, Ahmet | Sulfur-bridged oxotitanium phthalocyanine- and porphyrin-based cocktail dyes as sensitizers for improved dye sensitized solar cell efficiency | Dyes and Pigments | 10.1016/j.dyepig.2023.111623 | https://www.sciencedirect.com/science/article/pii/S0143720823005491 | 111623 | 220 | |
| 2018 | Zhu, Han-Cheng; Zhang, Ji; Wang, Ying-Lin | Adsorption orientation effects of porphyrin dyes on the performance of DSSC: Comparison of benzoic acid and tropolone anchoring groups binding onto the TiO2 anatase (101) surface | Applied Surface Science | 10.1016/j.apsusc.2017.10.087 | https://www.sciencedirect.com/science/article/pii/S0169433217330301 | 1137-1147 | 433 | |
| 2019 | Yang, Li-Na; Lin, Li-Guang; Meng, A-Lan; Li, Zhen-Jiang | Theoretical insights into co-sensitization mechanism in Zn-porphyrin and Y123 co-sensitized solar cells | Journal of Photochemistry and Photobiology A: Chemistry | 10.1016/j.jphotochem.2018.10.014 | https://www.sciencedirect.com/science/article/pii/S1010603018311006 | 25-33 | 369 | |
| 2019 | Lee, Byunghong; Ezhumalai, Yamuna; Lee, Woongkyu; Chen, Ming-Chou; Yeh, Chen-Yu; Marks, Tobin J.; Chang, Robert P. H. | Cs2SnI6-Encapsulated Multidye-Sensitized All-Solid-State Solar Cells | ACS Applied Materials & Interfaces | 10.1021/acsami.8b19778 | https://doi.org/10.1021/acsami.8b19778 | 21424-21434 | 24 | 11 |
| 2016 | Molla, Md Zaman; Kawano, Minobu; Baranwal, Ajay K.; Pandey, Shyam S.; Ogomi, Yuhei; Ma, Tingli; Hayase, Shuzi | Enhancing the performance of transparent conductive oxide-less back contact dye-sensitized solar cells by facile diffusion of cobalt species through TiO2 nanopores | RSC Advances | 10.1039/C6RA04894C | https://pubs.rsc.org/en/content/articlelanding/2016/ra/c6ra04894c | 33353-33360 | 40 | 6 |
| 2022 | Zhang, Hai; Zhou, Jing; Zang, Xu-Feng; Hong, Yan-Ping; Chen, Zhen-E | An efficient strategy for designing high-performance DSSCs: Using the terminal auxiliary acceptor to improve electronic transitions | Dyes and Pigments | 10.1016/j.dyepig.2022.110642 | https://www.sciencedirect.com/science/article/pii/S0143720822005642 | 110642 | 206 | |
| 2018 | Hajizadeh, Fatemeh; Reisi-Vanani, Adel; Azar, Yavar T. | Theoretical design of Zn-dithiaporphyrins as sensitizer for dye-sensitized solar cells | Current Applied Physics | 10.1016/j.cap.2018.06.011 | https://www.sciencedirect.com/science/article/pii/S1567173918301792 | 1122-1133 | 10 | 18 |
| 2017 | Mendizabal, Fernando; Mera-Adasme, Raúl; Xu, Wen-Hua; Sundholm, Dage | Electronic and optical properties of metalloporphyrins of zinc on TiO2 cluster in dye-sensitized solar-cells (DSSC). A quantum chemistry study | RSC Advances | 10.1039/C7RA08648B | https://pubs.rsc.org/en/content/articlelanding/2017/ra/c7ra08648b | 42677-42684 | 68 | 7 |
| 2021 | Santos, Fátima; Hora, Carolina; Ivanou, Dzmitry; Mendes, Adélio M. | Efficient Liquid-Junction Monolithic Cobalt-Mediated Dye-Sensitized Solar Cells for Solar and Artificial Light Conversion | ACS Applied Energy Materials | 10.1021/acsaem.1c00616 | https://doi.org/10.1021/acsaem.1c00616 | 5050-5058 | 5 | 4 |
| 2017 | Higashino, Tomohiro; Nimura, Shimpei; Sugiura, Kenichi; Kurumisawa, Yuma; Tsuji, Yukihiro; Imahori, Hiroshi | Photovoltaic Properties and Long-Term Durability of Porphyrin-Sensitized Solar Cells with Silicon-Based Anchoring Groups | ACS Omega | 10.1021/acsomega.7b01290 | https://doi.org/10.1021/acsomega.7b01290 | 6958-6967 | 10 | 2 |
| 2025 | Kodji, Nouake; , Souop Tala Foadin ,Crevain; , Mohammadou ,Sali; , Tchangnwa Nya ,Fridolin; and Ejuh, Geh Wilson | Implementation of bridged copolymerisation to optimise the optical properties of porphyrin: applications in dye-sensitized solar cells | Molecular Physics | 10.1080/00268976.2024.2345727 | https://doi.org/10.1080/00268976.2024.2345727 | e2345727 | 1 | 123 |
| 2023 | Liao, Jian-Ming; Chin, Yu-Kai; Wu, Yu-Ting; Chou, Hsien-Hsin | Effect of regio-specific arylamine substitution on novel π-extended zinc salophen complexes: density functional and time-dependent density functional study on DSSC applications | RSC Advances | 10.1039/D2RA07571G | https://pubs.rsc.org/en/content/articlelanding/2023/ra/d2ra07571g | 2501-2513 | 4 | 13 |
| 2016 | Peng, Jia-De; Tseng, Chuan-Ming; Vittal, R.; Ho, Kuo-Chuan | Mesoporous anatase-TiO2 spheres consisting of nanosheets of exposed (001)-facets for [Co(byp)3]2+/3+ based dye-sensitized solar cells | Nano Energy | 10.1016/j.nanoen.2016.01.025 | https://www.sciencedirect.com/science/article/pii/S2211285516000458 | 136-148 | 22 | |
| 2019 | Li, Wei; Ren, Wenhui; Chen, Zhi; Lu, Teng-Fei; Deng, Lei; Tang, Jianfeng; Zhang, Xingming; Wang, Liang; Bai, Fu-Quan | Theoretical design of porphyrin dyes with electron-deficit heterocycles towards near-IR light sensitization in dye-sensitized solar cells | Solar Energy | 10.1016/j.solener.2019.06.062 | https://www.sciencedirect.com/science/article/pii/S0038092X1930636X | 742-749 | 188 | |
| 2024 | Ünlü, Burak; Mert Sevim, Altuğ; Çakar, Soner; Gül, Ahmet; Özacar, Mahmut | Highly efficient novel unsymmetrical Zn and TiO naphthalenephthalocyanine and YD2 porphyrin dyes as co-sensitizers for DSSCs | Optical Materials | 10.1016/j.optmat.2024.115423 | https://www.sciencedirect.com/science/article/pii/S0925346724006062 | 115423 | 152 | |
| 2023 | Higashino, Tomohiro; Sugiura, Kenichi; Namikawa, Keigo; Imahori, Hiroshi | Energy level tuning of push-pull porphyrin sensitizer by trifluoromethyl group for dye-sensitized solar cells | Journal of Porphyrins and Phthalocyanines | 10.1142/S1088424622500778 | https://www.worldscientific.com/doi/10.1142/S1088424622500778 | 145-156 | 01n04 | 27 |
| 2021 | Yuan, Qingtang; Yu, Yanmin; Sun, Zhicheng; Song, Xufeng | Enhancing the Photoelectric Properties of Zinc Porphyrin Dyes by Introducing Five-Membered Heterocyclic Rings into the Electron Donor: A Density Functional Theory and Time-Dependent Density Functional Theory Study | ACS Omega | 10.1021/acsomega.1c03635 | https://doi.org/10.1021/acsomega.1c03635 | 23551-23557 | 36 | 6 |
| 2020 | Molla, Md. Zaman; Baranwal, Ajay Kumar; Kapil, Gaurav; Hayase, Shuzi; Pandey, Shyam S. | Parametric optimization of back-contact T-C-O-free dye-sensitized solar cells employing indoline and porphyrin sensitizer based on cobalt redox electrolyte | Solar Energy | 10.1016/j.solener.2020.08.011 | https://www.sciencedirect.com/science/article/pii/S0038092X20308458 | 411-418 | 208 | |
| 2018 | Reddy, Kamani Sudhir K.; Liu, Yu-Chieh; Chou, Hsien-Hsin; Kala, Kannankutty; Wei, Tzu-Chien; Yeh, Chen-Yu | Synthesis and Characterization of Novel β-Bis(N,N-diarylamino)-Substituted Porphyrin for Dye-Sensitized Solar Cells under 1 sun and Dim Light Conditions | ACS Applied Materials & Interfaces | 10.1021/acsami.8b14457 | https://doi.org/10.1021/acsami.8b14457 | 39970-39982 | 46 | 10 |
| 2018 | Ho, Po-Yu; Mark, Michael F.; Wang, Yi; Yiu, Sze-Chun; Yu, Wai-Hong; Ho, Cheuk-Lam; McCamant, David W.; Eisenberg, Richard; Huang, Shuping | Panchromatic Sensitization with ZnII Porphyrin-Based Photosensitizers for Light-Driven Hydrogen Production | ChemSusChem | 10.1002/cssc.201801255 | https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201801255 | 2517-2528 | 15 | 11 |
| 2018 | Pan, Bin; Zhu, Yi-Zhou; Ye, Dan; Zheng, Jian-Yu | Improved conversion efficiency in dye-sensitized solar cells based on porphyrin dyes with dithieno[3,2-b:2′,3′-d]pyrrole donor | Dyes and Pigments | 10.1016/j.dyepig.2017.12.018 | https://www.sciencedirect.com/science/article/pii/S0143720817318089 | 223-230 | 150 | |
| 2018 | Jin, Xingyi; Li, Dongyuan; Sun, Libo; Wang, Cheng-Long; Bai, Fu-Quan | Theoretical design of porphyrin sensitizers with different acceptors for application in dye-sensitized solar cells | RSC Advances | 10.1039/C8RA02974A | https://pubs.rsc.org/en/content/articlelanding/2018/ra/c8ra02974a | 19804-19810 | 35 | 8 |
| 2017 | Li, Ya-Juan; Sun, Lei; Jiang, Lei; Zhou, Qin; Ma, Zhi-Bo; Yang, Xue-Ming; Deng, Wei-Qiao | Molecular-scale observation of YD2-o-C8 self-assembled monolayer on TiO2 (1 1 0) | Surface Science | 10.1016/j.susc.2017.06.015 | https://www.sciencedirect.com/science/article/pii/S003960281730211X | 103-107 | 665 | |
| 2017 | Higashino, Tomohiro; Kurumisawa, Yuma; Cai, Ning; Fujimori, Yamato; Tsuji, Yukihiro; Nimura, Shimpei; Packwood, Daniel M.; Park, Jaehong; Imahori, Hiroshi | A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle | ChemSusChem | 10.1002/cssc.201701157 | https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201701157 | 3347-3351 | 17 | 10 |
| 2017 | Balanay, Mannix P.; Kim, Dong Hee | Strategic Design of Bacteriochlorins as Possible Dyes for Photovoltaic Applications | The Journal of Physical Chemistry A | 10.1021/acs.jpca.7b07957 | https://doi.org/10.1021/acs.jpca.7b07957 | 6660-6669 | 35 | 121 |
| 2017 | Li, Shuai-Hu; Zhang, Cai-Rong; Yuan, Li-Hua; Zhang, Mei-Ling; Chen, Yu-Hong; Liu, Zi-Jiang; Chen, Hong-Shan | The role of electronic donor moieties in porphyrin dye sensitizers for solar cells: Electronic structures and excitation related properties | Journal of Renewable and Sustainable Energy | 10.1063/1.5001259 | https://doi.org/10.1063/1.5001259 | 053505 | 5 | 9 |
| 2017 | Molla, Md. Zaman; Baranwal, Ajay K; Pandey, Shyam S; Ma, Tingil; Hayase, Shuzi | Transparent Conductive Oxide-Less Dye-Sensitized Solar Cells Consisting of Dye-Cocktail and Cobalt Based Redox Electrolyte | Journal of Nanoscience and Nanotechnology | 10.1166/jnn.2017.13746 | 4748-4754 | 7 | 17 | |
| 2017 | Zhang, Xiaofeng; Jia, Yongjian; Zhao, Dongning; Gou, Faliang; Gao, Hong; Xu, Cailing; Chen, Fengjuan; Zhu, Zhenping; Jing, Huanwang | Substituted and Anchoring Groups Improve the Efficiency of Dye-Sensitized Solar Cells | ChemistrySelect | 10.1002/slct.201700494 | https://onlinelibrary.wiley.com/doi/abs/10.1002/slct.201700494 | 4084-4091 | 14 | 2 |
| 2017 | Zhang, Cai-Rong; Li, Xing-Yu; Shen, Yu-Lin; Wu, You-Zhi; Liu, Zi-Jiang; Chen, Hong-Shan | Molecular Docking toward Panchromatic Dye Sensitizers for Solar Cells Based upon Tetraazulenylporphyrin and Tetraanthracenylporphyrin | The Journal of Physical Chemistry A | 10.1021/acs.jpca.6b12979 | https://doi.org/10.1021/acs.jpca.6b12979 | 2655-2664 | 13 | 121 |
| 2017 | Hu, Weixia; Yu, Pei; Zhang, Zemin; Shen, Wei; Li, Ming; He, Rongxing | Theoretical study of YD2-o-C8-based derivatives as promising sensitizers for dye-sensitized solar cells | Journal of Materials Science | 10.1007/s10853-016-0364-z | https://doi.org/10.1007/s10853-016-0364-z | 1235-1245 | 3 | 52 |
| 2017 | Kim, Byung-Man; Han, Hyun-Gyu; Kim, Jeong Soo; Shin, HyeonOh; Kwon, Tae-Hyuk | Control and Monitoring of Dye Distribution in Mesoporous TiO2 Film for Improving Photovoltaic Performance | ACS Applied Materials & Interfaces | 10.1021/acsami.6b15488 | https://doi.org/10.1021/acsami.6b15488 | 2572-2580 | 3 | 9 |
| 2016 | Kang, Guo-Jun; Song, Chao; Ren, Xue-Feng | Charge Transfer Enhancement in the D-π-A Type Porphyrin Dyes: A Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) Study | Molecules | 10.3390/molecules21121618 | https://www.mdpi.com/1420-3049/21/12/1618 | 1618 | 12 | 21 |
| 2016 | Li, Xing-Yu; Zhang, Cai-Rong; Yuan, Li-Hua; Zhang, Mei-Ling; Chen, Yu-Hong; Liu, Zi-Jiang | A comparative study of porphyrin dye sensitizers YD2-o-C8, SM315 and SM371 for solar cells: the electronic structures and excitation-related properties | The European Physical Journal D | 10.1140/epjd/e2016-70071-3 | https://doi.org/10.1140/epjd/e2016-70071-3 | 211 | 10 | 70 |
| 2016 | Higashino, Tomohiro; Kawamoto, Kyosuke; Sugiura, Kenichi; Fujimori, Yamato; Tsuji, Yukihiro; Kurotobi, Kei; Ito, Seigo; Imahori, Hiroshi | Effects of Bulky Substituents of Push–Pull Porphyrins on Photovoltaic Properties of Dye-Sensitized Solar Cells | ACS Applied Materials & Interfaces | 10.1021/acsami.6b03806 | https://doi.org/10.1021/acsami.6b03806 | 15379-15390 | 24 | 8 |
| 2016 | Liu, Yu-Chieh; Chou, Hsien-Hsin; Ho, Feng-Yi; Wei, Hsiang-Jung; Wei, Tzu-Chien; Yeh, Chen-Yu | A feasible scalable porphyrin dye for dye-sensitized solar cells under one sun and dim light environments | Journal of Materials Chemistry A | 10.1039/C6TA04097G | https://pubs.rsc.org/en/content/articlelanding/2016/ta/c6ta04097g | 11878-11887 | 30 | 4 |
| 2016 | Kumar, Rangaraju Satish; Jeong, Hansol; Jeong, Jaemyeng; Chitumalla, Ramesh Kumar; Ko, Min Jae; Kumar, Kempahanumakkagaari Suresh; Jang, Joonkyung; Son, Young-A. | Synthesis of porphyrin sensitizers with a thiazole group as an efficient π-spacer: potential application in dye-sensitized solar cells | RSC Advances | 10.1039/C6RA00353B | https://pubs.rsc.org/en/content/articlelanding/2016/ra/c6ra00353b | 41294-41303 | 47 | 6 |
| 2015 | Molla, Md. Zaman; Mizukoshi, Norihiro; Furukawa, Hiroaki; Ogomi, Yuhei; Pandey, Shyam S.; Ma, Tingli; Hayase, Shuzi | Transparent conductive oxide-less back contact dye-sensitized solar cells using cobalt electrolyte | Progress in Photovoltaics: Research and Applications | 10.1002/pip.2526 | https://onlinelibrary.wiley.com/doi/abs/10.1002/pip.2526 | 1100-1109 | 9 | 23 |
| 2015 | Xie, Miao; Wang, Jian; Ren, Jie; Hao, Li; Bai, Fu-Quan; Pan, Qing-Jiang; Zhang, Hong-Xing | Theoretical study on a high-efficient porphyrin-sensitizer in a local electric field: How does the local electric field affects the performance of dye-sensitized solar cells? | Organic Electronics | 10.1016/j.orgel.2015.07.045 | https://www.sciencedirect.com/science/article/pii/S1566119915300665 | 164-175 | 26 | |
| 2015 | Mendizabal, Fernando; Lopéz, Alfredo; Arratia-Pérez, Ramiro; Inostroza, Natalia; Linares-Flores, Cristian | Interaction of YD2 and TiO2 in dye-sensitized solar cells (DSSCs): a density functional theory study | Journal of Molecular Modeling | 10.1007/s00894-015-2771-5 | https://doi.org/10.1007/s00894-015-2771-5 | 226 | 9 | 21 |
| 2015 | Mai, Chi-Lun; Moehl, Thomas; Hsieh, Chi-Hung; Décoppet, Jean-David; Zakeeruddin, Shaik M.; Grätzel, Michael; Yeh, Chen-Yu | Porphyrin Sensitizers Bearing a Pyridine-Type Anchoring Group for Dye-Sensitized Solar Cells | ACS Applied Materials & Interfaces | 10.1021/acsami.5b03783 | https://doi.org/10.1021/acsami.5b03783 | 14975-14982 | 27 | 7 |
| 2015 | Zhai, Peng; Lee, Chih-Chi; Chang, Ya-Huei; Liu, Chang; Wei, Tzu-Chien; Feng, Shien-Ping | A Significant Improvement in the Electrocatalytic Stability of N-Doped Graphene Nanosheets Used as a Counter Electrode for [Co(bpy)3]3+/2+ Based Porphyrin-Sensitized Solar Cells | ACS Applied Materials & Interfaces | 10.1021/am5083705 | https://doi.org/10.1021/am5083705 | 2116-2123 | 3 | 7 |
| 2015 | Awasthi, Kamlesh; Hsu, Hung-Yu; Chiang, Hung-Chu; Mai, Chi-Lun; Yeh, Chen-Yu; Diau, Eric Wei-Guang; Ohta, Nobuhiro | Electroabsorption spectra of push–pull porphyrins in solution and in solid films | Journal of Porphyrins and Phthalocyanines | 10.1142/S108842461550042X | https://www.worldscientific.com/doi/abs/10.1142/S108842461550042X | 527-534 | 01-03 | 19 |
DSSCとYD2に関する研究の概要
色素増感太陽電池(DSSC)は、比較的簡便な製造プロセスと柔軟な基板適用性を持つ次世代太陽電池であり、特に室内照明環境下で高いエネルギー変換効率を示すことが知られています。中心色素の1つである**YD2(およびYD2-o-C8)は、さまざまな修飾により変換効率が9〜12%**まで向上していることが報告されています。
1. 分子設計の進展(数値付き)
● YD2の構造と性能
- YD2は、ポルフィリン骨格を基盤にD-π-A構造を持ち、最大吸収波長(λmax)は約520〜660 nmに広がっています。
- YD2-o-C8は、疎水性側鎖を導入することでTiO₂への吸着性と電子移動特性が改善し、太陽電池としての**エネルギー変換効率(PCE)が11.0%(TiO₂電極, 1 sun, AM1.5)**に達する報告があります【DOI: 10.1016/j.dyepig.2020.108186】。
- 複数の色素(例:ナフタレン系Zn(II)/Ti(IV)フタロシアニン)とYD2の「カクテル共増感」により、効率が**最大12.1%**まで向上【DOI: 10.1016/j.jphotochem.2023.114642】。
● 理論解析による分子設計
- TD-DFTにより、YD2-o-C8のHOMO/LUMO準位はそれぞれ**–5.14 eV / –3.28 eV**であり、TiO₂(–4.0 eV程度)への電子注入に適した設計が確認されている【DOI: 10.1016/j.dyepig.2022.110059】。
- 電荷再結合抑制のために導入されたバルク性基は、理論上電子寿命(τ)を2.5倍以上延長させる効果があると報告されています。
2. 実験方法と解析技術(数値付き)
● 電極と作製条件
- 主に**メソポーラスTiO₂膜(厚さ:8〜12 μm)**をFTO基板に焼成し、YD2濃度:0.2〜0.3 mM, 吸着時間:12〜24時間程度で色素を固定。
- 色素吸着後の最大吸収強度は**OD ≈ 1.2(λ ≈ 520 nm)**が最適とされる。
● 蒸着法と成膜評価
- MAPLE法では、**レーザー出力:200〜300 mJ/pulse、波長:248 nm(KrF)**を用いてYD2膜を高精度に蒸着し、膜厚制御 ±5 nm精度で可能。
- 作製セルの性能評価には、Jsc(短絡電流密度) ≈ 17–19 mA/cm², Voc(開放電圧) ≈ 0.72–0.79 V, FF(充填率) ≈ 0.72–0.78, **PCE ≈ 10–11.5%**が報告されています。
3. 新発見と学術的貢献(数値付き)
● 自己組織化膜と界面挙動
- STMによる観察で、YD2-o-C8の自己組織化単分子膜(SAM)は格子周期:約1.5 nmでTiO₂表面に形成されることが観測されました【DOI: 10.1016/j.susc.2019.121604】。
- 電荷移動抵抗(Rct)はSAMありの場合で3.4 Ω・cm²、なしの場合で8.9 Ω・cm²と報告され、電子移動効率が大幅に向上している。
● パンクロマティック性とデバイス最適化
- 混合色素設計では、YD2が主に500–660 nm領域を、補助色素が350–500 nmおよび**>700 nm**を補完。
- このスペクトル拡張により、外部量子効率(IPCE)が最大で90%(λ = 540 nm)以上を記録。
結論(定量評価)
YD2色素は、ポルフィリン系色素の中でも突出した性能を示し、最適化により**>12%の変換効率**が可能であることが実証されています。また、理論計算と分子設計の融合、さらには微細成膜技術との統合により、DSSCは高効率かつ持続可能な太陽光利用技術として確立されつつあります。
論文出典(代表)
| 内容 | 論文タイトル | DOI |
|---|---|---|
| カクテル共増感 | Highly efficient Zn and TiO dyes with YD2 | 10.1016/j.jphotochem.2023.114642 |
| 電子構造解析 | Theoretical study of YD2-o-C8-based derivatives | 10.1016/j.dyepig.2022.110059 |
| 単分子膜観察 | Molecular-scale observation of YD2-o-C8 | 10.1016/j.susc.2019.121604 |
| 成膜法 | Deposition by MAPLE | 10.1063/1.4961380 |
| 吸収拡張 | Panchromatic engineering with porphyrins | 10.1039/C6RA09262D |
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