Dr Tariq Sajjad


NameDr Tariq Sajjad
Job titleLecturer
Organisational UnitElectrical and Electronic Engineering
ORCIDhttps://orcid.org/0000-0001-6932-8686

Research outputs

Direct Growth of Vertically Aligned Carbon Nanotubes onto Transparent Conductive Oxide Glass for Enhanced Charge Extraction in Perovskite Solar Cells

Ferguson, V., Li, B., Tas, M. O., Webb, T., Sajjad, M. T., Thomson, S. A. J., Wu, Z., Shen, Y., Shao, G., Anguita, J. V., Silva, S. R. P. and Zhang, W. (2020). Direct Growth of Vertically Aligned Carbon Nanotubes onto Transparent Conductive Oxide Glass for Enhanced Charge Extraction in Perovskite Solar Cells. Advanced Materials Interfaces. https://doi.org/10.1002/admi.202001121

Enhancing Exciton Diffusion Length Provides New Opportunities for Organic Photovoltaics

Sajjad, M. T., Ruseckas, A. and Samuel, D.W. (2020). Enhancing Exciton Diffusion Length Provides New Opportunities for Organic Photovoltaics. Matter. 3 (5), pp. 341-354. https://doi.org/10.1016/j.matt.2020.06.028

Reduced Bilateral Recombination by Functional Molecular Interface Engineering for Efficient Inverted Perovskite Solar Cells

Sajjad, M. T. (2020). Reduced Bilateral Recombination by Functional Molecular Interface Engineering for Efficient Inverted Perovskite Solar Cells. Nano Energy. 78, p. 105249. https://doi.org/10.1016/j.nanoen.2020.105249

Long-range Exciton Diffusion in Non-Fullerene Acceptors and Coarse Bulk Heterojunctions Enable Highly Efficient Organic Photovoltaics

Sajjad, T. M. (2020). Long-range Exciton Diffusion in Non-Fullerene Acceptors and Coarse Bulk Heterojunctions Enable Highly Efficient Organic Photovoltaics. Journal of Materials Chemistry A. https://doi.org/10.1039/D0TA06017H

Interface limited hole extraction from methylammonium lead iodide films

Blaszczyk, Oskar, Jagadamma, Lethy Krishnan, Ruseckas, Arvydas, Sajjad, T, Zhang, Yiwei and Samuel, Ifor DW (2019). Interface limited hole extraction from methylammonium lead iodide films. Materials Horizons. https://doi.org/https://www.doi.org/10.1039/c9mh01517e

Efficient indoor pin hybrid perovskite solar cells using low temperature solution processed NiO as hole extraction layers

Jagadamma, Lethy Krishnan, Blaszczyk, Oskar, Sajjad, T., Ruseckas, Arvydas and Samuel, Ifor DW (2019). Efficient indoor pin hybrid perovskite solar cells using low temperature solution processed NiO as hole extraction layers. Solar Energy Materials and Solar Cells. 201, pp. 110071-110071. https://doi.org/10.1016/j.solmat.2019.110071

Highly efficient fullerene and non-fullerene based ternary organic solar cells incorporating a new tetrathiocin-cored semiconductor

Jagadamma, LK, Taylor, RGD, Kanibolotsky, AL, Sajjad, T, Wright, IA, Horton, PN, Coles, SJ, Samuel, IDW and Skabara, Peter J (2019). Highly efficient fullerene and non-fullerene based ternary organic solar cells incorporating a new tetrathiocin-cored semiconductor. Sustainable Energy & Fuels. 3 (8), pp. 2087-2099. https://doi.org/10.1039/C9SE00343F

Tailoring exciton diffusion and domain size in photovoltaic small molecules by annealing

Sajjad, T., Zhang, Y., Geraghty, P.B., Mitchell, V.D., Ruseckas, A., Blaszczyk, O., Jones, D.J. and Samuel, I.D.W. (2019). Tailoring exciton diffusion and domain size in photovoltaic small molecules by annealing. Journal of Materials Chemistry C. 7 (26), pp. 7922-7928. https://doi.org/10.1039/C9TC00951E

Large crystalline domains and enhanced exciton diffusion length enable efficient organic solar cells

Zhang, Yiwei, Sajjad, T, Blaszczyk, Oskar, Parnell, Andrew J, Ruseckas, Arvydas, Serrano, Luis A, Cooke, Graeme and Samuel, Ifor DW (2019). Large crystalline domains and enhanced exciton diffusion length enable efficient organic solar cells. Chemistry of Materials. 31 (17), pp. 6548-6557. https://doi.org/10.1021/acs.chemmater.8b05293

Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing

Zhang, Yiwei, Sajjad, T, Blaszczyk, Oskar, Ruseckas, Arvydas, Serrano, Luis A, Cooke, Graeme and Samuel, Ifor DW (2019). Enhanced exciton harvesting in a planar heterojunction organic photovoltaic device by solvent vapor annealing. Organic Electronics. 70, pp. 162-166. https://doi.org/10.1016/j.orgel.2019.03.014

Tuning the Exciton Diffusion Coefficient of Polyfluorene Based Semiconducting Polymers

Sajjad, T., Ward, Alexander J, Ruseckas, Arvydas, Bansal, Ashu K, Allard, Sybille, Scherf, Ullrich and Samuel, Ifor DW (2018). Tuning the Exciton Diffusion Coefficient of Polyfluorene Based Semiconducting Polymers. physica status solidi (RRL)–Rapid Research Letters. 13 (3), pp. 1800500-1800500. https://doi.org/https://www.doi.org/10.1002/pssr.201800500

Triptycene as a Supramolecular Additive in PTB7: PCBM blends and its Influence on Photovoltaic Properties

Krishnan Jagadamma, Lethy, McCarron, Liam J, Wiles, Alan A, Savikhin, Victoria, Sajjad, T., Yazdani, Mahdieh, Rotello, Vincent M, Toney, Michael F, Cooke, Graeme and Samuel, Ifor DW (2018). Triptycene as a Supramolecular Additive in PTB7: PCBM blends and its Influence on Photovoltaic Properties. ACS applied materials & interfaces. 10 (29), pp. 24665-24678. https://doi.org/https://www.doi.org/10.1021/acsami.8b03114

Role of lattice distortion and A site cation in the phase transitions of methylammonium lead halide perovskites

Harwell, Jonathon R, Payne, Julia L, Sajjad, T., Heutz, Frank JL, Dawson, Daniel M, Whitfield, Pamela S, Irvine, John TS, Samuel, Ifor DW and Carpenter, Michael A (2018). Role of lattice distortion and A site cation in the phase transitions of methylammonium lead halide perovskites. Physical Review Materials. 2 (6), pp. 065404-065404. https://doi.org/https://www.doi.org/10.1103/PhysRevMaterials.2.065404

Engineered exciton diffusion length enhances device efficiency in small molecule photovoltaics

Sajjad, T, Blaszczyk, Oskar, Jagadamma, Lethy Krishnan, Roland, Thomas J, Chowdhury, Mithun, Ruseckas, Arvydas and Samuel, Ifor DW (2018). Engineered exciton diffusion length enhances device efficiency in small molecule photovoltaics. Journal of Materials Chemistry A. 6 (20), pp. 9445-9450. https://doi.org/10.1039/C8TA01226A

pH-Induced transformation of ligated Au 25 to brighter Au 23 nanoclusters

Waszkielewicz, Magdalena, Olesiak-Banska, Joanna, Comby-Zerbino, Clothilde, Bertorelle, Franck, Dagany, Xavier, Bansal, Ashu K, Sajjad, T, Samuel, Ifor DW, Sanader, Zeljka and Rozycka, Miroslawa (2018). pH-Induced transformation of ligated Au 25 to brighter Au 23 nanoclusters. Nanoscale. 10 (24), pp. 11335-11341. https://doi.org/10.1039/C8NR00660A

CuSCN Nanowires as Electrodes for p-Type Quantum Dot Sensitized Solar Cells: Charge Transfer Dynamics and Alumina Passivation

Sajjad, Muhammad T, Sajjad, T, Park, Jinhyung, Gaboriau, Dorian, Harwell, Jonathon R, Odobel, Fabrice, Reiss, Peter, Samuel, Ifor DW and Aldakov, Dmitry (2018). CuSCN Nanowires as Electrodes for p-Type Quantum Dot Sensitized Solar Cells: Charge Transfer Dynamics and Alumina Passivation. The Journal of Physical Chemistry C. 122 (9), pp. 5161-5170. https://doi.org/10.1021/acs.jpcc.7b12619

Improved efficiency of PbS quantum dot sensitized NiO photocathodes with naphthalene diimide electron acceptor bound to the surface of the nanocrystals

Raissi, Mahfoudh, Sajjad, T, Farré, Yoann, Roland, Thomas J, Ruseckas, Arvydas, Samuel, Ifor DW and Odobel, Fabrice (2018). Improved efficiency of PbS quantum dot sensitized NiO photocathodes with naphthalene diimide electron acceptor bound to the surface of the nanocrystals. Solar Energy Materials and Solar Cells. 181, pp. 71-76. https://doi.org/10.1016/j.solmat.2017.12.029

Novel 4, 8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications

Conboy, G., Taylor, R.G.D., Findlay, N.J., Kanibolotsky, A.L., Inigo, A.R., Ghosh, S.S., Ebenhoch, B., Jagadamma, L.K., Thalluri, G.K.V.V. and Sajjad, T. (2017). Novel 4, 8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications. Journal of Materials Chemistry C. 5 (45), pp. 11927-11936. https://doi.org/10.1039/C7TC03959J

Size dependence of efficiency of PbS quantum dots in NiO-based dye sensitised solar cells and mechanistic charge transfer investigation

Raissi, Mahfoudh, Sajjad, T., Pellegrin, Yann, Roland, Thomas Jean, Jobic, Stéphane, Boujtita, Mohammed, Ruseckas, Arvydas, Samuel, Ifor DW and Odobel, Fabrice (2017). Size dependence of efficiency of PbS quantum dots in NiO-based dye sensitised solar cells and mechanistic charge transfer investigation. Nanoscale. 9 (40), pp. 15566-15575. https://doi.org/https://www.doi.org/10.1039/C7NR03698A

Polymer colour converter with very high modulation bandwidth for visible light communications

Vithanage, DA, Kanibolotsky, AL, Rajbhandari, S, Manousiadis, PP, Sajjad, T., Chun, H, Faulkner, GE, O'Brien, DC, Skabara, PJ, Samuel, IDW and Turnbull, GA (2017). Polymer colour converter with very high modulation bandwidth for visible light communications. Journal of Materials Chemistry C. 5 (35), pp. 8916-8920. https://doi.org/https://www.doi.org/10.1039/c7tc03787b

Narrow-band anisotropic electronic structure of ReS2

Biswas, D, Ganose, Alex M, Yano, R, Riley, JM, Bawden, L, Clark, OJ, Feng, J, Collins-Mcintyre, L, Sajjad, T and Meevasana, W (2017). Narrow-band anisotropic electronic structure of ReS2. Physical Review B. 96 (8). https://doi.org/10.1103/PhysRevB.96.085205

Correlating photovoltaic properties of PTB7-Th:PC71BM blend to photophysics and microstructure as a function of thermal annealing

Jagadamma, Lethy Krishnan, Sajjad, Muhammad T, Savikhin, Victoria, Toney, Michael F, Samuel, Ifor DW and Sajjad, T (2017). Correlating photovoltaic properties of PTB7-Th:PC71BM blend to photophysics and microstructure as a function of thermal annealing. Journal of Materials Chemistry A. 5 (28), pp. 14646-14657. https://doi.org/10.1039/C7TA03144K

Tuning crystalline ordering by annealing and additives to study its effect on exciton diffusion in a polyalkylthiophene copolymer

Chowdhury, Mithun, Sajjad, T., Savikhin, Victoria, Hergué, Noémie, Sutija, Karina B, Oosterhout, Stefan D, Toney, Michael F, Dubois, Philippe, Ruseckas, Arvydas and Samuel, Ifor DW (2017). Tuning crystalline ordering by annealing and additives to study its effect on exciton diffusion in a polyalkylthiophene copolymer. Physical Chemistry Chemical Physics. 19 (19), pp. 12441-12451. https://doi.org/https://www.doi.org/10.1039/C7CP00877E

Exciton diffusion length and charge extraction yield in organic bilayer solar cells

Siegmund, B., Sajjad, T, Widmer, J., Ray, D., Koerner, C., Riede, M., Leo, K., Samuel, I.D.W. and Vandewal, K. (2017). Exciton diffusion length and charge extraction yield in organic bilayer solar cells. Advanced Materials. 29 (12), pp. 1604424-1604424. https://doi.org/10.1002/adma.201604424

A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors

Sajjad, T, Manousiadis, PP, Orofino, Clara, Kanibolotsky, AL, Findlay, Neil J, Rajbhandari, Sujan, Vithanage, DA, Chun, Hyunchae, Faulkner, GE and O’Brien, DC (2017). A saturated red color converter for visible light communication using a blend of star-shaped organic semiconductors. Applied Physics Letters. 110 (1), pp. 013302-013302. https://doi.org/10.1063/1.4971823

Controlling the emission efficiency of blue-green iridium (iii) phosphorescent emitters and applications in solution-processed organic light-emitting diodes

Sajjad, T, Sharma, Nidhi, Pal, Amlan K, Hasan, Kamrul, Xie, Guohua, Kölln, Lisa S, Hanan, Garry S, Samuel, Ifor DW and Zysman-Colman, Eli (2016). Controlling the emission efficiency of blue-green iridium (iii) phosphorescent emitters and applications in solution-processed organic light-emitting diodes. Journal of Materials Chemistry C. 4 (38), pp. 8939-8946. https://doi.org/10.1039/C6TC02909D

BODIPY star-shaped molecules as solid state colour converters for visible light communications

Vithanage, DA, Manousiadis, PP, Sajjad, T, Rajbhandari, Sujan, Chun, Hyunchae, Orofino, Clara, Cortizo-Lacalle, Diego, Kanibolotsky, AL, Faulkner, Grahame and Findlay, NJ (2016). BODIPY star-shaped molecules as solid state colour converters for visible light communications. Applied Physics Letters. 109 (1), pp. 013302-013302. https://doi.org/10.1063/1.4953789

Efficient eco-friendly inverted quantum dot sensitized solar cells

Park, J., Sajjad, T, Jouneau, P-H., Ruseckas, A., Faure-Vincent, J., Samuel, I.D.W., Reiss, P. and Aldakov, D. (2016). Efficient eco-friendly inverted quantum dot sensitized solar cells. Journal of Materials Chemistry A. 4 (3), pp. 827-837. https://doi.org/10.1039/C5TA06769C

Mercaptophosphonic acids as efficient linkers in quantum dot sensitized solar cells

Aldakov, D, Sajjad, T, Ivanova, V, Bansal, AK, Park, J, Reiss, P and Samuel, IDW (2015). Mercaptophosphonic acids as efficient linkers in quantum dot sensitized solar cells. Journal of Materials Chemistry A. 3 (37), pp. 19050-19060. https://doi.org/10.1039/C5TA04021C

Controlling exciton diffusion and fullerene distribution in photovoltaic blends by side chain modification

Sajjad, T, Ward, Alexander J, Kästner, Christian, Ruseckas, Arvydas, Hoppe, Harald and Samuel, Ifor DW (2015). Controlling exciton diffusion and fullerene distribution in photovoltaic blends by side chain modification. The journal of physical chemistry letters. 6 (15), pp. 3054-3060. https://doi.org/10.1021/acs.jpclett.5b01059

In situ formation and photo patterning of emissive quantum dots in small organic molecules

Bansal, Ashu K, Sajjad, T, Antolini, Francesco, Stroea, Lenuta, Gečys, Paulius, Raciukaitis, Gediminas, André, Pascal, Hirzer, Andreas, Schmidt, Volker and Ortolani, Luca (2018). In situ formation and photo patterning of emissive quantum dots in small organic molecules. Nanoscale. 7 (25), pp. 11163-11172. https://doi.org/10.1039/C5NR01401H

Novel fast color-converter for visible light communication using a blend of conjugated polymers

Sajjad, T, Manousiadis, Pavlos P, Chun, Hyunchae, Vithanage, Dimali A, Rajbhandari, Sujan, Kanibolotsky, Alexander L, Faulkner, Grahame, O’Brien, Dominic, Skabara, Peter J and Samuel, Ifor DW (2015). Novel fast color-converter for visible light communication using a blend of conjugated polymers. Acs Photonics. 2 (2), pp. 194-199. https://doi.org/10.1021/ph500451y

Synthesis and properties of novel star-shaped oligofluorene conjugated systems with BODIPY cores

Orofino-Pena, Clara, Cortizo-Lacalle, Diego, Cameron, Joseph, Sajjad, T., Manousiadis, Pavlos P, Findlay, Neil J, Kanibolotsky, Alexander L, Amarasinghe, Dimali, Skabara, Peter J and Tuttle, Tell (2014). Synthesis and properties of novel star-shaped oligofluorene conjugated systems with BODIPY cores. Beilstein journal of organic chemistry. 10, pp. 2704-2714. https://doi.org/https://www.doi.org/10.3762/bjoc.10.285

Fluorescent Red-Emitting BODIPY Oligofluorene Star-Shaped Molecules as a Color Converter Material for Visible Light Communications

Sajjad, T, Manousiadis, Pavlos P, Orofino, Clara, Cortizo-Lacalle, Diego, Kanibolotsky, Alexander L, Rajbhandari, Sujan, Amarasinghe, Dimali, Chun, Hyunchae, Faulkner, Grahame and O’Brien, Dominic C (2015). Fluorescent Red-Emitting BODIPY Oligofluorene Star-Shaped Molecules as a Color Converter Material for Visible Light Communications. Advanced optical materials. 3 (4), pp. 536-540. https://doi.org/10.1002/adom.201400424

Photophysical and structural characterisation of in situ formed quantum dots

Bansal, AK, Antolini, F, Sajjad, T, Stroea, L, Mazzaro, R, Ramkumar, SG, Kass, K-J, Allard, S, Scherf, U and Samuel, IDW (2014). Photophysical and structural characterisation of in situ formed quantum dots. Physical Chemistry Chemical Physics. 16 (20), pp. 9556-9564. https://doi.org/https://www.doi.org/10.1039/C4CP00727A

Measurement of a reaction-diffusion crossover in exciton-exciton recombination inside carbon nanotubes using femtosecond optical absorption

Allam, J, Sajjad, T, Sutton, R, Litvinenko, K, Wang, Zilong, Siddique, S, Yang, Q-H, Loh, Wei H and Brown, T (2013). Measurement of a reaction-diffusion crossover in exciton-exciton recombination inside carbon nanotubes using femtosecond optical absorption. Physical review letters. 111 (19), pp. 197401-197401. https://doi.org/10.1103/PhysRevLett.111.197401
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