|| (a) M. Freitag, J. Teuscher, Y. Saygili, X. Zhang, F. Giordano, P. Liska, J. Hua, S. M. Zakeeruddin, J. E. Moser, M. Grätzel and A. Hagfeldt, "Dye-sensitized solar cells for efficient power generation under ambient lighting" Nat. Photon. 2017, 11, 372–378; (b) C. Y. Chen, T. Y. Kuo, C. W. Huang, Z. H. Jian, P. T. Hsiao, C. L. Wang, J. C. Lin, C. Y. Chen, C. H. Chen, Y. L. Tung, M. C. Tsai, K. M. Huang, C. M. Chen, C. W. Hsu, Y. C. Chen, Z. Pei, Y. S. Tingare, H. H. Chou, C. Y. Yeh, C. Y. Lin, Y. L. Lee, H. W. Lin, H. F. Meng, P. T. Chou and C. G. Wu, "Thermal and angular dependence of next-generation photovoltaics under indoor lighting" Prog. Photovolt. Res. Appl. 2020, 28, 111−121.|
 (a) "http: // www. pveducation. org / pvcdrom / appendices / standard -solar- spectra"; (b) "http: // www. laserfbcusworld. com/articles/ 2009 / 05 / photovoltaics– measuring– the- sun. htmL".
 E. Becquerel, "Mémoire sur les effets électriques produits sous l′influence des rayons solaires" C. R. Acad. Sci. 1839, 9, 561–567.
 J. Wu, Z. Lan, J. Lin, M. Huang, Y. Huang, L. Fan and G. Luo, "Electrolytes in dye-sensitized solar cells" Chem. Rev. 2015, 115, 2136–2173.
 M. A. Green, E. D. Dunlop, J. H. Ebinger, M. Yoshita, N. Kopidakis, X. Hao, "Solar cell efficiency tables (version 56)" Prog. Photovolt. Res. Appl. 2020, 28, 629–638.
 H. Tsubomura, M. Matsumura, Y. Nomura and T. Amamiya, "Dye sensitised zinc oxide: aqueous electrolyte: Platinum photocell" Nature 1976, 261, 402–403.
 B. Regan and M. Grätzel, "A low cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films" Nature 1991, 353, 737–740.
 J. Wu, Z. Lan, J. Lin, M. Huang and Y. Huang, "Counter electrodes in dye-sensitized solar cells" Chem. Soc. Rev. 2017, 46, 5975–6023.
 A. Hagfeldt, G. Boschloo, L. Sun, L. Kloo and H. Pettersson, "Dye-sensitized solar cells" Chem. Rev. 2010, 110, 6595–6663.
 L. Han, A. Islam, H. Chen, C. Malapaka, B. C. Jeevi, S. Zhang, X. Yang and M. Yanagida, "High-efficiency dye-sensitized solar cell with a novel co-adsorbent" Energy Environ. Sci. 2012, 5, 6057–6060.
 J. M. Cole, G. Pepe, O. K. Al Bahri and C. B. Cooper, "Cosensitization in dye-sensitized solar cells" Chem. Rev. 2019, 119, 7279–7327.
 K. Kakiage, Y. Aoyama, T. Yano, K. Oya, J. Fujisawa and M. Hanaya, "Highly-efficient dye-sensitized solar cells with collaborative sensitization by silyl-anchor and carboxy-anchor dyes" Chem. Commun. 2015, 51, 15894–15897.
 C. Y. Chen, M. Wang, J. Y. Li, N. Pootrakulchote, L. Alibabaei, C. H. Ngocle, J. D. Decoppet, S. M. Zakeeruddin, J. H. Tsai, C. Grätzel, C. G. Wu and M. Grätzel, "Highly efficient light-harvesting ruthenium sensitizer for thin-film dye-sensitized solar cells" ACS Nano 2009, 3, 3103–3109.
 Q. Yu, Y. Wang, Z. Yi, N. Zu, J. Zhang, M. Zhang and P. Wang, "High-efficiency dye-sensitized solar cells: The influence of lithium ions on exciton dissociation, charge recombination, and surface states" ACS Nano 2010, 4, 6032–6038.
 S. Yun, Y. Qin, A. R. Uhl, N. Vlachopoulos, M. Yin, D. Li, X. Han and A. Hagfeldt, "New-generation integrated devices based on dye-sensitized and perovskite solar cells" Energy Environ. Sci. 2018, 11, 476–526.
 S. P. Singh, M. Chandrasekharam, K. S. V. Gupta, A. Islam, L. Han and G. D. Sharma, "Co-sensitization of amphiphilic ruthenium (II) sensitizer with a metal free organic dye: Improved photovoltaic performance of dye sensitized solar cells" Org. Electron. 2013, 14, 1237–1241.
 G. Koyyada, S. Shome, M. Chandrasekharam, G. D. Sharma and S. P. Singh, "High performance dye-sensitized solar cell from a cocktail solution of a ruthenium dye and metal free organic dye" RSC Adv. 2016, 6, 41151–41155.
 H. Ozawa, R. Shimizu and H. Arakawa, "Significant improvement in the conversion efficiency of black-dye-based dye-sensitized solar cells by cosensitization with organic dye" RSC Adv. 2012, 2, 3198–3200.
 S. Zhang, A. Islam, X. Yang, C. Qin, K. Zhang, Y. Numata, H. Chen and L. Han, "Improvement of spectral response by co-sensitization for high efficiency dye-sensitized solar cells" J. Mater. Chem. A 2013, 1, 4812– 4819.
 A. Islam, T. Swetha, M. R. Karim, M. Akhtaruzzaman, L. Han and S. P. Singh, "Tuning of spectral response by co-sensitization in black-dye based dye-sensitized solar cell" Phys. Status Solidi A 2015, 3, 651–656.
 D. Kuang, C. Klein, H. J. Snaith, J. Moser, R. Humphry-Baker, P. Comte, S. M. Zakeeruddin and M. Grätzel, "Ion coordinating sensitizer for high efficiency mesoscopic dye-sensitized solar cells: influence of lithium ions on the photovoltaic performance of liquid and solid-state cells" Nano Lett. 2006, 6, 769–773.
 Y. Lu, Q. Liu, J. Luo, B. Wang, T. Feng, X. Zhou, X. Liu and Y. Xie, "Solar cells sensitized with porphyrin dyes containing oligo (ethylene glycol) units: a high efficiency beyond 12%" ChemSusChem 2019, 12, 2802–2809.
 N. Shibayama, H. Ozawa, M. Abe, Y. Ooyama and H. Arakawa, "A new cosensitization method using the Lewis acid sites of a TiO2 photoelectrode for dye-sensitized solar cells" Chem. Commun. 2014, 60, 6398–6401.
 N. Shibayama, H. Ozawa, Y. Ooyama and H. Arakawa, "Highly efficient cosensitized plastic-substrate dye-sensitized solar cells with black dye and pyridine-anchor organic dye" Bull. Chem. Soc. Jpn. 2015, 88, 366–374.
 R. Y. Ogura, S. Nakane, M. Morooka, M. Orihashi, Y. Suzuki and K. Noda, "High-performance dye-sensitized solar cell with a multiple dye system" Appl. Phys. Lett. 2009, 7, 94–97.
 H. Ozawa, T. Kuroda, S. Harada and H. Arakawa, "Efficient ruthenium sensitizer with a terpyridine ligand having a hexylthiophene unit for dye-sensitized solar cells: Effects of the substituent position on the solar cell performance" Eur. J. Inorg. Chem. 2014, 2014, 4734–4739.
 M. Akhtaruzzaman, A. Islam, M. R. Karim, A. K. M. Hasan and L. Han, "Improving the spectral response of black dye by cosensitization with a simple indoline based dye in dye-sensitized solar cell" J. Chem. 2013, 2013, 1–5.
 S. Hong, M. R. Rohman, J. Jia, Y. Kim, D. Moon, Y. Kim, Y. H. Ko, E. Lee and K. Kim, "Porphyrin boxes: Rationally designed porous organic cages" Angew. Chem. Int. Ed. 2015, 54, 13241–13244.
 M. Mondal, V. G. Puranik and N. P. Argade, "Facile synthesis of 1,3,7-trihydroxyxanthone and its regioselective coupling reactions with prenal: simple and efficient access to osajaxanthone and nigrolineaxanthone F" J. Org. Chem. 2006, 71, 4992–4995.
 J. Huang, S. Zhang, B. Jiang, Y. Chen, X. Zhang, Z. Fan, D. Yu, Z. Lin, J. Yao and C. Zhan, "Terminal moiety-driven electrical performance of asymmetric small-molecule-based organic solar cells" J. Mater. Chem. A 2016, 4, 15688–15697.
 T. I. Ryu, M. Song, M. J. Lee, S. H. Jin, S. Kang, J. Y. Lee, J. K. Lee, C. W. Lee and Y. S. Gao, "Synthesis and photovoltaic properties of novel ruthenium(II) sensitizers for dye-sensitized solar cell applications" Bull. Korean Chem. Soc. 2009, 30, 2329–2337.
 T. Hergert, B. Varga, A. Thurner, F. Faigl and B. Matravolgyi, "Copper-facillitated Suzuki-Miyaura coupling for the preparation of 1,3-dioxolane-protected 5-arylthiophene-2-carboxaldehydes" Tetrahedron 2018, 74, 2002–2008.
 Y. Jiang, C. Cabanetos, M. Allain, S. Jungsuttiwong and J. Roncali, "Manipulation of the electronic and photovoltaic properties of materials based on small push-pull molecules by substitution of the arylamine donor block by aliphatic groups" Org. Electron. 2016, 37, 294–304.
 R. Noto, L. Lamartina, C. Arnone and D. Spinelli, "An analysis of 13C nuclear magnetic resonance substiuent chemical shifts in 4- and 5-substituted thiophene-2-carboxylic acids by linear free energy relationships" J. Chem. Soc. Perkin. Trans. II 1988, 6, 887–892.
 R. Heathcote, J. A. S. Howell, N. Jennings, D. Cartlidge, L. Cobden, S. Coles and M. Hursthouse, "Gold(I)-isocyanide and gold(I)-carbene complexes as substrates for the laser decoration of gold onto ceramic surfaces" Dalton Trans. 2007, 13, 1309–1315.
 A. Bedi, S. P. Senanayak, K. S. Narayan and S. S. Zade, "Synthesis and characterization of copolymers based on cyclopenta[c]thiophene and bithiazole and their transistor properties" J. Polym. Sci. A Polym. Chem. 2013, 57, 4481–4488.
 S. H. Yang, K. L. Wu, Y. Chi, Y. M. Cheng and P. T. Chou, "Tris (thiocyanate) ruthenium (II) sensitizers with functionalized dicarboxy-terpyridine for dye-sensitized solar cells" Angew. Chem. Int. Ed. 2011, 50, 8270–8274.
 S. C. Rasmussen, S. J. Evenson and C. B. McCausland, "Fluorescent thiophene-based materials and their outlook for emissive applications" Chem. Commun. 2015, 51, 4528–4543.
 W. Zhu, Y. Wu, S. Wang, W. Li, X. Li, J. Chen, Z. Wang and H. Tian, "Organic D-A-π-A solar cell sensitizers with improved stability and spectral response" Adv. Funct. Mater. 2011, 21, 756–763.
 C. H. Chen, Y. C. Hsu, H. H. Chou, K. R. Thomas, J. T. Lin and C. P. Hsu, "Dipolar compounds containing fluorene and a heteroaromatic ring as the conjugating bridge for high-performance dye-sensitized solar cells" Chem. Eur. J. 2010, 16, 3184–3193.
 V. V. Pavlishchuk and A. W. Addison, "Conversion constants for redox potentials measured versus different reference electrodes in acetonitrile solutions at 25 oC" Inorg. Chim. Acta. 2000, 298, 97–102.
 H. Ozawa, K. Fukushima. A. Urayama and H. Arakawa, "Efficient ruthenium sensitizer with an extended pi-conjugated terpyridine ligand for dye-sensitized solar cells" Inorg. Chem. 2015, 54, 8887–8889.
 C. Y. Chen, S. K. Ahn, D. Aoki, J. Kokubo, K. H. Yoon, H. Saito, K. S. Lee, S. Magaino, K. Takagi, L. C. Lin, K. M. Lee, C. G. Wu, H. Zhou and S. Igari, "International round-robin inter-comparison of dye-sensitized and crystalline silicon solar cells" J. Power Source 2017, 340, 309–318.
 H. Chang, M. J. Kao, T. L. Chen, C. H. Chen, K. C. Cho and X. R. Lai, "Characterization of natural dyes extracted from wormwood and purple cabbage for dye-sensitized solar cells" Int. J. Photoenergy 2013, 2013, 1–8.
 D. Kuang, P. Walter, F. Nuesch, S. Kim, J. Ko, P. Comte, S. M. Zakeeruddin, M. K. Nazeeruddin and M. Grätzel, "Co-sensitization of organic dyes for efficient ionic liquid elctrolyte-based dye-sensitized solar cells" Langmuir 2007, 23, 10906–10909.