Dr Stoichko Dimitrov
Senior Lecturer
Director of Postgraduate Taught Studies of SPCS
School of Physical and Chemical Sciences
Queen Mary University of London
Queen Mary University of London
Research
Laser spectroscopy, Printed solar cells, Perovskite photovoltaics, Organic photovoltaics, Photophysics, Semiconductors
Interests
Dimitrov's group uses laser and optical spectroscopies to develop new generation solar energy technologies and materials. One of our main areas of interest is printed perovskite solar cells. The group also studies the photophysical properties of organic and perovskite semiconductors and solar cells, looking for stability and performance enhancements.Publications
Publications of specific relevance to the Centre for Chemical Research2024
Li X and Dimitrov SD (2024). Scaling Up Perovskite Solar Cell Fabrication: Antisolvent‐Controlled Crystallization of Printed Perovskite Semiconductor. Solar RRL, Wiley vol. 8 (16) 01-08-2024
Maho A, Kim DK, Wade J, Bryan E, Henrard L, Olivier Y, Dimitrov SD, Cloots R and Heutz S (2024). Towards photoelectrochromic modulation of NIR absorption in plasmonic ITO using pentacene films. Journal of Materials Chemistry C, Royal Society of Chemistry (RSC) 01-01-2024
Machreki M, Tyuliev G, Žigon D, Guo Q, Chouki T, Sobrido ABJ, Dimitrov S and Emin S (2024). Photoelectrochemical activation of peroxymonosulfate using Sn-doped α-Fe2O3 thin film for degradation of anti-inflammatory pharmaceutical drug. Journal of Photochemistry and Photobiology A Chemistry, Elsevier vol. 446 01-01-2024
2023
Dimitrov S and Li X (2023). Scaling up slot-die coated perovskite solar cells by implementing in-situ optical analysis of the printing process. Proceedings of the International Conference on Hybrid and Organic Photovoltaics. 30-03-2023
Marin-Beloqui JM, Congrave DG, Toolan DTW, Montanaro S, Guo J, Wright IA, Clarke TM, Bronstein H and Dimitrov SD (2023). Generating Long-Lived Triplet Excited States in Narrow Bandgap Conjugated Polymers. Journal of the American Chemical Society, American Chemical Society (ACS) vol. 145 (6), 3507-3514. 03-02-2023
Guo Q, Zhao Q, Crespo-Otero R, Di Tommaso D, Tang J, Dimitrov SD, Titirici MM, Li X and Jorge Sobrido AB (2023). Single-Atom Iridium on Hematite Photoanodes for Solar Water Splitting: Catalyst or Spectator? Journal of the American Chemical Society, American Chemical Society 11-01-2023
2021
Ye Q, Xu X, Paghi A, Bamford T, Horrocks BR, Houlton A, Barillaro G, Dimitrov S and Palma M (2021). Solution-Processable Carbon Nanotube Nanohybrids for Multiplexed Photoresponsive Devices. Advanced Functional Materials 08-08-2021
Hernández FJ, Fei Z, Osborne C, Crespo-Otero R, Heeney M and Dimitrov SD (2021). Triplet Generation Dynamics in Si- and Ge-Bridged Conjugated Copolymers. The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, American Chemical Society 20-01-2021
2020
Hou B, Kim BS, Lee HKH, Cho Y, Giraud P, Liu M, Zhang J, Davies ML, Durrant JR, Tsoi WC, Li Z, Dimitrov SD, Sohn JI, Cha SN and Kim JM (2020). Multiphoton Absorption Stimulated Metal Chalcogenide Quantum Dot Solar Cells under Ambient and Concentrated Irradiance. Advanced Functional Materials, Wiley 11-08-2020
Daboczi M, Kim J, Lee J, Kang H, Hamilton I, Lin C, Dimitrov SD, McLachlan MA, Lee K and Durrant JR (2020). Towards Efficient Integrated Perovskite/Organic Bulk Heterojunction Solar Cells: Interfacial Energetic Requirement to Reduce Charge Carrier Recombination Losses. Advanced Functional Materials, Wiley vol. 30 (25) 29-04-2020
Luo H, Dimitrov SD, Daboczi M, Kim J-S, Guo Q, Fang Y, Stoeckel M-A, Samorì P, Fenwick O, Jorge Sobrido A, Wang X and Titirici M-M (2020). Nitrogen-doped Carbon Dots/TiO2 Nanoparticle Composites for Photoelectrochemical Water Oxidation. ACS Applied Nano Materials, American Chemical Society 20-03-2020
Péan EV, De Castro CS, Dimitrov S, De Rossi F, Meroni S, Baker J, Watson T and Davies ML (2020). Investigating the Superoxide Formation and Stability in Mesoporous Carbon Perovskite Solar Cells with an Aminovaleric Acid Additive. Advanced Functional Materials, Wiley 07-02-2020
Péan EV, Dimitrov S, De Castro CS and Davies ML (2020). Interpreting time-resolved photoluminescence of perovskite materials. Physical Chemistry Chemical Physics, Royal Society of Chemistry (RSC) vol. 22 (48), 28345-28358. 01-01-2020
Luo H, Liu Y, Dimitrov SD, Steier L, Guo S, Li X, Feng J, Xie F, Fang Y, Sapelkin A, Wang X and Titirici M-M (2020). Pt single-atoms supported on nitrogen-doped carbon dots for highly efficient photocatalytic hydrogen generation. Journal of Materials Chemistry A, Royal Society of Chemistry (RSC) vol. 8 (29), 14690-14696. 01-01-2020
2019
Luo H, Papaioannou N, Salvadori E, Roessler MM, Ploenes G, van Eck ERH, Tanase LC, Feng J, Sun Y, Yang Y, Danaie M, Jorge AB, Sapelkin A, Durrant J, Dimitrov SD and Titirici M (2019). Cover Feature: Manipulating the Optical Properties of Carbon Dots by Fine‐Tuning their Structural Features (ChemSusChem 19/2019). ChemSusChem, Wiley vol. 12 (19), 4335-4335. 26-09-2019
Luo H, Papaioannou N, Salvadori E, Roessler M, Ploenes G, van Eck ERH, Tanase L, Feng J, Sun Y, Yang Y, Danaie M, Sobrido ABJ, Sapelkin A, Durrant J, Dimitrov SD and Titirici M-M (2019). Manipulating the optical properties of carbon dots via fine tuning their structural features. ChemSusChem 10-09-2019
Speller EM, Clarke AJ, Aristidou N, Wyatt MF, Francàs L, Fish G, Cha H, Lee HKH, Luke J, Wadsworth A, Evans AD, McCulloch I, Kim JS, Haque SA, Durrant JR, Dimitrov SD, Tsoi WC and Li Z (2019). Toward improved environmental stability of polymer: Fullerene and polymer:Nonfullerene organic solar cells: A common energetic origin of light- A nd oxygen-induced degradation. ACS Energy Letters, American Chemical Society vol. 4 (4), 846-852. 12-04-2019
Dimitrov SD, Azzouzi M, Wu J, Yao J, Dong Y, Tuladhar PS, Schroeder BC, Bittner ER, McCulloch I, Nelson J and Durrant JR (2019). Spectroscopic Investigation of the Effect of Microstructure and Energetic Offset on the Nature of Interfacial Charge Transfer States in Polymer: Fullerene Blends. Journal of the American Chemical Society, American Chemical Society vol. 141 (11), 4634-4643. 26-02-2019
Luke J, Speller EM, Wadsworth A, Wyatt MF, Dimitrov S, Lee HKH, Li Z, Tsoi WC, McCulloch I, Bagnis D, Durrant JR and Kim J (2019). Twist and Degrade—Impact of Molecular Structure on the Photostability of Nonfullerene Acceptors and Their Photovoltaic Blends. Advanced Energy Materials, Wiley vol. 9 (15) 21-02-2019
2018
Tan C-H, Wadsworth A, Gasparini N, Wheeler S, Holliday S, Ashraf RS, Dimitrov SD, Baran D, McCulloch I and Durrant JR (2018). Excitation Wavelength-Dependent Internal Quantum Efficiencies in a P3HT/Nonfullerene Acceptor Solar Cell. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 123 (10), 5826-5832. 24-12-2018
Sachs M, Sprick RS, Pearce D, Hillman SAJ, Monti A, Guilbert AAY, Brownbill NJ, Dimitrov S, Shi X, Blanc F, Zwijnenburg MA, Nelson J, Durrant JR and Cooper AI (2018). Understanding structure-activity relationships in linear polymer photocatalysts for hydrogen evolution. Nature Communications, Nature Research (part of Springer Nature) vol. 9 (1) 23-11-2018
Kim J, Godin R, Dimitrov SD, Du T, Bryant D, McLachlan MA and Durrant JR (2018). Excitation Density Dependent Photoluminescence Quenching and Charge Transfer Efficiencies in Hybrid Perovskite/Organic Semiconductor Bilayers. Advanced Energy Materials, Wiley vol. 8 (35) 23-10-2018
2017
Cha H, Wheeler S, Holliday S, Dimitrov SD, Wadsworth A, Lee HH, Baran D, McCulloch I and Durrant JR (2017). Influence of Blend Morphology and Energetics on Charge Separation and Recombination Dynamics in Organic Solar Cells Incorporating a Nonfullerene Acceptor. Advanced Functional Materials, Wiley vol. 28 (3) 27-11-2017
Keiderling C, Dimitrov S and Durrant JR (2017). Exciton and Charge Generation in PC 60 BM Thin Films. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 121 (27), 14470-14475. 03-07-2017
Utzat H, Dimitrov SD, Wheeler S, Collado-Fregoso E, Tuladhar PS, Schroeder BC, McCulloch I and Durrant JR (2017). Charge Separation in Intermixed Polymer:PC11-05-2017
2016
Collado‐Fregoso E, Deledalle F, Utzat H, Tuladhar PS, Dimitrov SD, Gillett A, Tan C, Zhang W, McCulloch I and Durrant JR (2016). Photophysical Study of DPPTT‐T/PC70BM Blends and Solar Devices as a Function of Fullerene Loading: An Insight into EQE Limitations of DPP‐Based Polymers. Advanced Functional Materials, Wiley vol. 27 (6) 27-12-2016
Baran D, Kirchartz T, Wheeler S, Dimitrov S, Abdelsamie M, Gorman J, Ashraf RS, Holliday S, Wadsworth A, Gasparini N, Kaienburg P, Yan H, Amassian A, Brabec CJ, Durrant JR and McCulloch I (2016). Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages. Energy and Environmental Science, Royal Society of Chemistry vol. 9 (12), 3783-3793. 01-12-2016
Fallon KJ, Wijeyasinghe N, Manley EF, Dimitrov SD, Yousaf SA, Ashraf RS, Duffy W, Guilbert AAY, Freeman DME, Al-Hashimi M, Nelson J, Durrant JR, Chen LX, McCulloch I, Marks TJ, Clarke TM, Anthopoulos TD and Bronstein H (2016). Indolo-naphthyridine-6,13-dione Thiophene Building Block for Conjugated Polymer Electronics: Molecular Origin of Ultrahigh n‑Type Mobility. Chemistry of Materials, American Chemical Society (ACS) vol. 28 (22), 8366-8378. 07-11-2016
Vezie MS, Dimitrov SD, Schroeder BC, Nielsen CB, McCulloch I, Campoy-Quiles M, Durrant JR and Nelson J (2016). Charge generation in polymer:fullerene photovoltaic systems (Conference Presentation). SPIE Organic Photonics + Electronics. 07-11-2016
Fallon KJ, Dimitrov S, Durrant J, Bronstein H and Clarke TM (2016). Transient absorption spectroscopy of ultra-low band gap polymers for organic electronic applications. Physical Chemistry of Interfaces and Nanomaterials XV. 26-09-2016
Casey A, Dimitrov SD, Shakya-Tuladhar P, Fei Z, Nguyen M, Han Y, Anthopoulos TD, Durrant JR and Heeney M (2016). Effect of Systematically Tuning Conjugated Donor Polymer Lowest Unoccupied Molecular Orbital Levels via Cyano Substitution on Organic Photovoltaic Device Performance. Chemistry of Materials, American Chemical Society (ACS) vol. 28 (14), 5110-5120. 15-07-2016
Holliday S, Ashraf RS, Wadsworth A, Baran D, Yousaf SA, Nielsen CB, Tan CH, Dimitrov SD, Shang Z, Gasparini N, Alamoudi M, Laquai F, Brabec CJ, Salleo A, Durrant JR and McCulloch I (2016). High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor. Nature Communications, Nature Publishing Group: Nature Communications vol. 7, 11585-11585. 09-06-2016
Berndl S, Dimitrov SD, Menacher F, Fiebig T and Wagenknecht H (2016). Thiazole Orange Dimers in DNA: Fluorescent Base Substitutions with Hybridization Readout. Chemistry - A European Journal, Wiley vol. 22 (7), 2386-2395. 15-01-2016
Dimitrov SD, Schroeder BC, Nielsen CB, Bronstein H, Fei Z, McCulloch I, Heeney M and Durrant JR (2016). Singlet Exciton Lifetimes in Conjugated Polymer Films for Organic Solar Cells. Polymers, MDPI vol. 8 (1) 13-01-2016
2015
Andernach R, Utzat H, Dimitrov SD, McCulloch I, Heeney M, Durrant JR and Bronstein H (2015). Synthesis and Exciton Dynamics of Triplet Sensitized Conjugated Polymers. Journal of the American Chemical Society, American Chemical Society (ACS) vol. 137 (32), 10383-10390. 07-08-2015
Dimitrov SD, Wheeler S, Niedzialek D, Schroeder BC, Utzat H, Frost JM, Yao J, Gillett A, Tuladhar PS, McCulloch I, Nelson J and Durrant JR (2015). Polaron pair mediated triplet generation in polymer/fullerene blends. Nature Communications, Springer Nature vol. 6 (1) 04-03-2015
O'Mahony FTF, Lee YH, Jellett C, Dmitrov S, Bryant DTJ, Durrant JR, O'Regan BC, Graetzel M, Nazeeruddin MK and Haque SA (2015). Improved environmental stability of organic lead trihalide perovskite-based photoactive-layers in the presence of mesoporous TiO 2. Journal of Materials Chemistry A, Royal Society of Chemistry (RSC) vol. 3 (14), 7219-7223. 01-01-2015
2014
Law C, Miseikis L, Dimitrov S, Shakya‐Tuladhar P, Li X, Barnes PRF, Durrant J and O'Regan BC (2014). Performance and Stability of Lead Perovskite/TiO2, Polymer/PCBM, and Dye Sensitized Solar Cells at Light Intensities up to 70 Suns. Advanced Materials, Wiley vol. 26 (36), 6268-6273. 04-08-2014
Dimitrov SD, Huang Z, Deledalle F, Nielsen CB, Schroeder BC, Ashraf RS, Shoaee S, McCulloch I and Durrant JR (2014). Towards optimisation of photocurrent from fullerene excitons in organic solar cells. Energy & Environmental Science, Royal Society of Chemistry (RSC) vol. 7 (3), 1037-1043. 01-01-2014
Huang Z, Fregoso EC, Dimitrov S, Tuladhar PS, Soon YW, Bronstein H, Meager I, Zhang W, McCulloch I and Durrant JR (2014). Optimisation of diketopyrrolopyrrole:fullerene solar cell performance through control of polymer molecular weight and thermal annealing. Journal of Materials Chemistry A, Royal Society of Chemistry (RSC) vol. 2 (45), 19282-19289. 01-01-2014
Shivanna R, Shoaee S, Dimitrov S, Kandappa SK, Rajaram S, Durrant JR and Narayan KS (2014). Charge generation and transport in efficient organic bulk heterojunction solar cells with a perylene acceptor. Energy & Environmental Science, Royal Society of Chemistry (RSC) vol. 7 (1), 435-441. 01-01-2014
2013
Cappel UB, Dowland SA, Reynolds LX, Dimitrov S and Haque SA (2013). Charge Generation Dynamics in CdS:P3HT Blends for Hybrid Solar Cells. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 4 (24), 4253-4257. 02-12-2013
Juozapavicius M, Kaucikas M, Dimitrov SD, Barnes PRF, van Thor JJ and O’Regan BC (2013). Evidence for “Slow” Electron Injection in Commercially Relevant Dye-Sensitized Solar Cells by vis–NIR and IR Pump–Probe Spectroscopy. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 117 (48), 25317-25324. 20-11-2013
Bronstein H, Hurhangee M, Fregoso EC, Beatrup D, Soon YW, Huang Z, Hadipour A, Tuladhar PS, Rossbauer S, Sohn E-H, Shoaee S, Dimitrov SD, Frost JM, Ashraf RS, Kirchartz T, Watkins SE, Song K, Anthopoulos T, Nelson J, Rand BP, et al. (2013). Isostructural, Deeper Highest Occupied Molecular Orbital Analogues of Poly(3-hexylthiophene) for High-Open Circuit Voltage Organic Solar Cells. Chemistry of Materials, American Chemical Society (ACS) vol. 25 (21), 4239-4249. 29-10-2013
Dimitrov SD and Durrant JR (2013). Materials Design Considerations for Charge Generation in Organic Solar Cells. Chemistry of Materials, American Chemical Society (ACS) vol. 26 (1), 616-630. 01-10-2013
Bronstein H, Collado‐Fregoso E, Hadipour A, Soon YW, Huang Z, Dimitrov SD, Ashraf RS, Rand BP, Watkins SE, Tuladhar PS, Meager I, Durrant JR and McCulloch I (2013). Thieno[3,2‐b]thiophene‐diketopyrrolopyrrole Containing Polymers for Inverted Solar Cells Devices with High Short Circuit Currents. Advanced Functional Materials, Wiley vol. 23 (45), 5647-5654. 17-06-2013
2012
Bakulin AA, Dimitrov SD, Rao A, Chow PCY, Nielsen CB, Schroeder BC, McCulloch I, Bakker HJ, Durrant JR and Friend RH (2012). Charge-Transfer State Dynamics Following Hole and Electron Transfer in Organic Photovoltaic Devices. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 4 (1), 209-215. 26-12-2012
Dimitrov SD, Bakulin AA, Nielsen CB, Schroeder BC, Du J, Bronstein H, McCulloch I, Friend RH and Durrant JR (2012). On the Energetic Dependence of Charge Separation in Low-Band-Gap Polymer/Fullerene Blends. Journal of the American Chemical Society, American Chemical Society (ACS) vol. 134 (44), 18189-18192. 29-10-2012
2011
Dimitrov SD, Nielsen CB, Shoaee S, Tuladhar PS, Du J, McCulloch I and Durrant JR (2011). Efficient Charge Photogeneration by the Dissociation of PC70BM Excitons in Polymer/Fullerene Solar Cells. The Journal of Physical Chemistry Letters, American Chemical Society (ACS) vol. 3 (1), 140-144. 22-12-2011
2009
Dimitrov SD, Dooley CJ, Trifonov AA and Fiebig T (2009). Femtosecond Probing of Optical Phonon Dynamics in Quantum-Confined CdTe Nanocrystals. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 113 (10), 4198-4201. 12-02-2009
2008
Dooley CJ, Dimitrov SD and Fiebig T (2008). Ultrafast Electron Transfer Dynamics in CdSe/CdTe Donor−Acceptor Nanorods. The Journal of Physical Chemistry C, American Chemical Society (ACS) vol. 112 (32), 12074-12076. 17-07-2008
Grants
Grants of specific relevance to the Centre for Chemical ResearchScalable Manufacturing of Single-Crystal Perovskite Optical and Electronic Devices: Follow-OnLei Su, Oliver Fenwick, Colin Crick and Stoichko Dimitrov
£941,955 EPSRC Engineering and Physical Sciences Research Council (01-03-2024 - 28-02-2027)
Knowledge transfer partnerships (AKTP) with PowerrollStoichko Dimitrov
£35,000 Innovate UK (25-03-2024 - 24-07-2024)
Next generation in-situ analysis for perovskite photovoltaic developmentStoichko Dimitrov
£451,011 EPSRC Engineering and Physical Sciences Research Council (14-04-2021 - 13-04-2024)