Quantum dot and π-conjugated molecule hybrids: nanoscale luminescence and application to photoresponsive molecular electronics
Source abstract
Abstract
Hybrid nanoparticles (NPs) consisting of an n-type CdSe/ZnS quantum dot (QD) as a core and p-type p-conjugate molecules as a shell were fabricated, and their nanoscale photoluminescence (PL) and photoresponsive molecular electronic characteristics were investigated. p-Conjugated macromolecular dioctyloxybenzodithiophene-based polythiophene (P3000) or a single carbazole (CB) molecule with insulating molecular blocks were attached to the QD surface. The nanoscale PL characteristics for the single QD were drastically changed through close contact with P3000 owing to energy and charge transfer effects. However, for the hybrid QD-CB NP, the PL of the QD was dominant because of weak energy transfer resulting from the relatively longer insulating molecular block between the QD and the CB molecule. From time-resolved PL spectra, the exciton lifetimes of the QD in the hybrid QD-P3000 and QD-CB NPs were clearly different because of a variation in the energy transfer rate. The photocurrents of the single hybrid QD-P3000 NP were considerably higher and actively responded to both forward and reverse biases due to the energy and charge transfer effects, while those of the single QD-CB NP exhibited diode characteristics. The QD-based hybrids show distinct nanoscale PL features and photoresponsive molecular electronic characteristics depending on the structures of p-conjugated molecules.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Perovskite Materials and Applications · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Colvin, V. L., Schlamp, M. C. & Alivisatos, A. P. Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer. Nature 370, 354–357 (1994).10.1038/370354a0 ↗
2. Norris, D. J., Efros, A. L., Rosen, M. & Bawendi, M. G. Size dependence of exciton fine structure in CdSe quantum dots. Phys. Rev. B 53, 16347–16354 (1996).10.1103/PhysRevB.53.16347 ↗
3. Coe, S., Woo, W.-K., Bawendi, M. & Bulovic, V. Electroluminescence from single monolayers of nanocrystals in molecular organic devices. Nature 420, 800–803 (2002).10.1038/nature01217 ↗
4. Alivisatos, A. P. Semiconductor clusters, nanocrystals, and quantum dots. Science 271, 933–937 (1996).10.1126/science.271.5251.933 ↗
5. Tanaka, I., Kawasaki, E., Ohtsuki, O., Uno, K., Hara, M., Asami, H. & Kamiya, I. Conductive-tip atomic force microscopy of CdSe colloidal nanodots. Surf. Sci 532–535, 801–805 (2003).10.1016/S0039-6028(03)00088-8 ↗
6. Tanaka, I., Kamiya, I., Sakaki, H., Qureshi, N., Allen, S. J. Jr & Petroff, P. M. Imaging and probing electronic properties of self-assembled InAs quantum dots by atomic force microscopy with conductive tip. Appl. Phys. Lett. 74, 844–846 (1999).10.1063/1.123402 ↗
7. Zhang, S. L., Xue, F., Wu, R., Cui, J., Jiang, Z. M. & Yang, X. J. Conductive atomic force microscopy studies on the transformation of GeSi quantum dots to quantum rings. Nanotechnolgy 20, 135703 (2009).10.1088/0957-4484/20/13/135703 ↗
8. Chung, H.-C., Chu, W.-H. & Liu, C.-P. Electron transport through individual Ge self-assembled quantum dots on Si. Appl. Phys. Lett. 89, 082105 (2006).10.1063/1.2338004 ↗
9. William, W. Y., Emmanuel, C., Rebekah, D. & Vicki, L. C. Water-soluble quantum dots for biomedical applications. Biochem. Bioph. Res. Co 348, 781–786 (2006).10.1016/j.bbrc.2006.07.160 ↗
10. Roth, P. J., Kim, K.-S., Bae, S. H., Sohn, B.-H., Theato, P. & Zentel, R. Hetero-telechelic dye-labeled polymer for nanoparticle decoration. Macromol. Rapid Commun. 30, 1274–1278 (2009).10.1002/marc.200900254 ↗
11. Zhao, L. & Lin, Z. Crafting semiconductor organic-inorganic nanocomposites via placing conjugated polymers in intimate contact with nanocrystals for hybrid solar cells. Adv. Mater. 24, 4353–4368 (2012).10.1002/adma.201201196 ↗
12. Akkerman, H. B., Blom, P. W. M., de Leeuw, D. M. & de Boer, B. Towards molecular electronics with large-area molecular junctions. Nature 441, 69–72 (2006).10.1038/nature04699 ↗
13. Aradhya, S. V. & Venkataraman, L. Single-molecule junctions beyond electronic transport. Nat. Nanotechnol. 8, 399–410 (2013).10.1038/nnano.2013.91 ↗
14. Bae, W. K., Char, K.-H., Hur, H. & Lee, S.-H. Single-step synthesis of quantum dots with chemical composition gradients. Chem. Mater. 20, 531–539 (2008).10.1021/cm070754d ↗
15. Dabbousi, B. O., Rodriguez-Viejo, J., Mikulec, F. V., Heine, J. R., Mattoussi, H., Ober, R., Jensen, K. F. & Bawendi, M. G. (CdSe)ZnS core-shell quantum dots: synthesis and characterization of a size series of highly luminescent nanocrystallites. J. Phys. Chem. B101, 9463–9475 (1997).10.1021/jp971091y ↗
16. Hines, M. A. & Guyot-Sionnest, P. Synthesis and characterization of strongly luminescing ZnS-capped CdSe nanocrystals. J. Phys. Chem. 100, 468–471 (1996).10.1021/jp9530562 ↗
17. Peng, X., Schlamp, M. C., Kadavanich, A. V. & Alivisatos, A. P. Epitaxial growth of highly luminescent CdSe/CdS core/shell nanocrystals with photostability and electronic accessibility. J. Am. Chem. Soc. 119, 7019–7029 (1997).10.1021/ja970754m ↗
18. Lee, J.-S., Kovalenko, M. V., Huang, J., Chung, D. S. & Talapin, D. V. Band-like transport, high electron mobility and high photoconductivity in all-inorganic nanocrystal arrays. Nat. Nanotechnol. 6, 348–352 (2011).10.1038/nnano.2011.46 ↗
19. Bao, Z., Chan, W. K. & Yu, L. Exploration of the Stille coupling reaction for the syntheses of functional polymers. J. Am. Chem. Soc. 117, 12426–12435 (1995).10.1021/ja00155a007 ↗
20. Dubois, F., Mahler, B., Dubertret, B., Doris, E. & Mioskowski, C. A versatile strategy for quantum dot ligand exchange. J. Am. Chem. Soc. 129, 482–483 (2007).10.1021/ja067742y ↗
21. Wuister, S. F., Donega, C. D. & Meijerink, A. J. Influence of thiol capping on the exciton luminescence and decay kinetics of CdTe and CdSe quantum dots. J. Phys. Chem. B108, 17393–17397 (2004).10.1021/jp047078c ↗
22. Bullen, C. & Mulvaney, P. The effects of chemisorption on the luminescence of CdSe quantum dots. Langmuir 22, 3007–3013 (2006).10.1021/la051898e ↗
23. Kalyuzhny, G. & Murray, R. W. Ligand effects on optical properties of CdSe nanocrystals. J. Phys. Chem. B109, 7012–7021 (2005).10.1021/jp045352x ↗
24. Zhang, Q., Russell, T. O. & Emrick, T. Synthesis and characterization of CdSe Nanorods functionalized with regioregular poly(3-hexylthiophene). Chem. Mater. 19, 3712–3716 (2007).10.1021/cm070603a ↗
25. Hong, Y. K., Park, D. H., Park, S. K., Song, H., Kim, D.-C., Kim, J., Han, Y. H., Park, O. K., Lee, B. C. & Joo, J. Tuning and enhancing photoluminescence of light-emitting polymer nanotubes through electron-beam irradiation. Adv. Funct. Mater. 19, 567–572 (2009).10.1002/adfm.200801088 ↗
26. Park, D. H., Kim, M. S. & Joo, J. Hybrid nanostructures using π-conjugated polymers and nanoscale metals: synthesis, characteristics, and optoelectronic applications. Chem. Soc. Rev. 39, 2439–2452 (2010).10.1039/b907993a ↗
27. Kim, K., Shin, J. W., Lee, Y. B., Cho, M. Y., Lee, S. H., Park, D. H., Jang, D. K., Lee, C. J. & Joo, J. Poly(3-hexylthiophene)/multiwalled carbon hybrid coaxial nanotubes: nanoscale rectification and photovoltaic characteristics. ACS Nano 4, 4197–4205 (2010).10.1021/nn100427f ↗
28. Chen, T.-A., Wu, X. & Rieke, R. D. Regiocontrolled synthesis of poly(3-alkylthiophenes) mediated by Rieke zinc: their characterization and solid-state properties. J. Am. Chem. Soc. 117, 233–244 (1995).10.1021/ja00106a027 ↗
29. Kim, Y. H., Hotta, S. & Heeger, A. J. Photoexcitation and doping studies of poly(3-hexylthienylene). Phys. Rev. B38, 5490–5495 (1988).10.1103/PhysRevB.38.5490 ↗
30. Souto Maior, R. M., Hinkelmann, K., Eckert, H. & Wudl, F. Synthesis and characterization of two regiochemically defined poly(dialkylthiophenes): a comparative study. Macromolecules 23, 1268–1279 (1990).10.1021/ma00207a008 ↗
31. Hotta, S., Rughooputh, S. D. D. V., Heeger, A. J. & Wudl, F. Spectroscopic studies of soluble poly(3-alkylthienylenes). Macromolecules 20, 212–215 (1987).10.1021/ma00167a038 ↗
32. Young, A. G., Al-Salim, N., Green, D. P. & McQuillan, J. Attenuated total reflection infrared studies of oleate and trioctylphosphine oxide ligand adsorption and exchange reactions on CdS quantum dot films. Langmuir 24, 3841–3849 (2008).10.1021/la703655v ↗
33. Koposov, A. Y., Cardolaccia, T., Albert, V., Badeava, E., Kilina, S., Meyer, T. J., Tretiak, S. & Sykora, M. Formation of assemblies comprising Ru-polypyridine complexes and CdSe nanocrystals studied by ATR-FTIR spectroscopy and DFT modeling. Langmuir 27, 8377–8383 (2011).10.1021/la200531s ↗
34. Larrubia, M. A., Gutierrez-Alejandre, A., Ramirez, J. & Busca, G. A FT-IR study of the adsorption of indole, carbazole, benzothiophene, dibenzothiophene and 4,6-dibenzothiophene over solid adsorbents and catalysts. Appl. Catal. A-Gen. 224, 167–178 (2002).10.1016/S0926-860X(01)00769-4 ↗
35. Medintz, I. L., Pons, T., Trammell, S. A., Grimes, A. F., English, D. S., Blanco-Canosa, J. B., Dawson, P. E. & Mattoussi, H. Interactions between redox complexes and semiconductor quantum dots coupled via a peptide bridge. J. Am. Chem. Soc. 130, 16745–16756 (2008).10.1021/ja805456x ↗
36. Forster, R. Organic Charge-Transfer Complexes, Academic Press: Waltham, MA, USA, (1969).
37. Sze, S. M. & Ng, K. K. Physics of Semiconductor Devices 3rd edn Wiley-Interscience: New York, (2007).
38. Parker, I. D. Carrier tunneling and device characteristics in polymer light-emitting diodes. J. Appl. Phys. 75, 1656–1666 (1994).10.1063/1.356350 ↗
39. Kergueris, C., Bourgoin, J.-P., Palacin, S., Esteve, D., Urbina, C., Magoga, M. & Joachim, C. Electron transport through a metal-molecule-metal junction. Phys. Rev. B59, 12505–12513 (1999).10.1103/PhysRevB.59.12505 ↗
40. Kagan, C. R. & Ratner, M. A. Molecular transport junction: an introduction. MRS Bull. 29, 376–384 (2004).10.1557/mrs2004.119 ↗