Electronics and ionics for energy devices

He conducts researches on several aspects of materials and interfaces for energy conversion and storage. Mechanisms at the Nanoscale have fostered cutting age investigations in a wide variety of electrical devices. Organic and molecular functional semiconductors used in thin film transistors, photovoltaic cells and light-emitting diodes exhibit a high degree of charge localization confining relevant operating processes as transport and recombination within the Nanoscale. Interfaces and interlayers of nanometer size at device contacts play a central role in establishing contact energy level alignment and charge transfer injection and extraction in optoelectronic devices and sensors. Nanosize-related phenomena in energy storage materials are a key issue orienting current research in higher capacity and cycling performance of batteries. Also hybrid perovskite materials have appeared recently as highly potential light absorbers with interesting physical properties. This research program focuses on understanding connections between structural, thermodynamic, and kinetic aspects, and electrical behavior and new functionalities of novel materials and interfaces. We are particularly interested in the nano-effects incorporated into complete electrical devices for optoelectronics, photovoltaics, energy storage, and sensoring. Particularly relevant for our research is parameter extraction and mechanism identification inferred from impedance spectroscopy analysis.

Short Biography of Prof. Garcia-Belmonte

Germà Garcia-Belmonte (1964) received his Ph.D. degree at UNED, 1996. He worked (1988-1992) at CIEMAT, Madrid, on experimental and theoretical research in the area of digital processing of nuclear signal. He joined the Universitat Jaume I, Castelló, in 1992 and currently works as a Full Professor of Applied Physics (2010) at the Institute of Advanced Materials. He published 188 papers in research journals, and has 10.000 citations and h-index 50 (WOS). He studied intercalation processes in oxides and polymer films by impedance methods. He follows researches in various areas within the field of Organic Electronics and photovoltaics as electronic mechanisms in organic light-emitting diodes, organic photovoltaics, and plastic and thin-film solar cells. He is currently conducting researches in the topic of perovskite-based solar cells. Also of interest is the electrochemical kinetics of electrodes for batteries. Device physics using impedance spectroscopy (including modeling and measuring) is his main subject.

Publications

2016

  1. Advanced Energy Materials, 2016, 1601486.
    Dkhil, S.B.; Pfannmöller, M.; Saba, M.Ileana; Gaceur, M.; Heidari, H.; Videlot-Ackermann, C.; Margeat, O.; Guerrero, A.; Bisquert, J.; Garcia-Belmonte, G.; Mattoni, A.; Bals, S.; Ackermann, J.         Toward High-Temperature Stability of PTB7-Based Bulk Heterojunction Solar Cells: Impact of Fullerene Size and Solvent Additive.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/aenm.201601486/abstract
  2. Applied Physics Letters, 2016, 109, 173903.
    Almora, O.; Aranda, C.; Mas-Marzá, E.; Garcia-Belmonte, G.         On Mott-Schottky analysis interpretation of capacitance measurements in organometal perovskite solar cells.
    Article page: http://scitation.aip.org/content/aip/journal/apl/109/17/10.1063/1.4966127
  3. Nano-Micro Letters, 2016, 9, 10.
    Guerrero, A.; Garcia-Belmonte, G.         Recent Advances to Understand Morphology Stability of Organic Photovoltaics.
    Article page: http://link.springer.com/article/10.1007/s40820-016-0107-3
  4. ACS Energy Letters, 2016, 1, 683-688.
    Garcia-Belmonte, G.; Bisquert, J.         Distinction between Capacitive and Noncapacitive Hysteretic Currents in Operation and Degradation of Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00293
  5. ACS Energy Letters, 2016, 1, 209-215.
    Almora, O.; Aranda, C.; Zarazua, I.; Guerrero, A.; Garcia-Belmonte, G.         Non-capacitive Hysteresis in Perovskite Solar Cells at Room Temperature.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00116
  6. Physical Chemistry Chemical Physics, 2016, 18, 14970-14975.
    Ripollés-Sanchis, T.; Baranwal, A.K.; Nishinaka, K.; Ogomi, Y.; Garcia-Belmonte, G.; Hayase, S.         Mechanisms of Charge Accumulation in the Dark Operation of Perovskite Solar Cells.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2016/cp/c6cp01427e#!divAbstract
  7. The Journal of Physical Chemistry C, 2016, 120, 8023-8032.
    Guerrero, A.; Garcia-Belmonte, G.; Mora-Seró, I.; Bisquert, J.; Kang, Y.Soo; Jacobsson, J.; Correa-Baena, J.Pablo; Hagfeldt, A.         Properties of Contact and Bulk Impedances in Hybrid Lead Halide Perovskite Solar Cells Including Inductive Loop Elements.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b01728
  8. Advanced Energy Materials, 2016, 6,
    Carrillo, J.; Guerrero, A.; Rahimnejad, S.; Almora, O.; Zarazua, I.; Mas-Marzá, E.; Bisquert, J.; Garcia-Belmonte, G.         Ionic Reactivity at Contacts and Aging of Methylammonium Lead Triiodide Perovskite Solar Cells.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/aenm.201502246/full
  9. Applied Physics Letters, 2016, 108, 043903.
    Almora, O.; Guerrero, A.; Garcia-Belmonte, G.         Ionic charging by local imbalance at interfaces in hybrid lead halide perovskites.
    Article page: http://scitation.aip.org/content/aip/journal/apl/108/4/10.1063/1.4941033
  10. The Journal of Physical Chemistry Letters, 2016, 7, 525-528.
    Zarazua, I.; Bisquert, J.; Garcia-Belmonte, G.         Light-Induced Space-Charge Accumulation Zone as Photovoltaic Mechanism in Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.5b02810
  11. ACS Nano, 2016, 10, 218-224.
    Guerrero, A.; You, J.; Aranda, C.; Kang, Y.Soo; Garcia-Belmonte, G.; Zhou, H.; Bisquert, J.; Yang, Y.         Interfacial Degradation of Planar Lead Halide Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acsnano.5b03687

2015

  1. The Journal of Physical Chemistry Letters, 2015, 6, 4693--4700.
    Chen, B.; Yang, M.; Zheng, X.; Wu, C.; Li, W.; Yan, Y.; Bisquert, J.; Garcia-Belmonte, G.; Zhu, K.; Priya, S.         Impact of Capacitive Effect and Ion Migration on the Hysteretic Behavior of Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.5b02229
  2. Advanced Functional Materials, 2015, 26, 243-253.
    Gaceur, M.; Dkhil, S.B.; Duché, D.; Bencheikh, F.; Simon, J.J.; Escoubas, L.; Mansour, M.; Guerrero, A.; Garcia-Belmonte, G.; Liu, X.; Fahlman, M.; Dachraoui, W.; Diallo, A.Karim; Videlot-Ackermann, C.; Margeat, O.; Ackermann, J.         Ligand-free synthesis of Aluminum-doped Zinc Oxide nanocrystals and their use as optical spacers in color tuned high-efficient organic solar cells.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/adfm.201502929/abstract
  3. Journal of Materials Chemistry A, 2015, 3, 22183-22190.
    Park, K.J.; Lim, B.B.; Choi, M.H.; Jung, H.G.; Sun, Y.K.; Haro, M.; Vicente, N.; Bisquert, J.; Garcia-Belmonte, G.         A high-capacity Li[Ni0.8Co0.06Mn0.14]O2 positive electrode with a dual concentration gradient for next-generation lithium-ion batteries.
    Article page: http://pubs.rsc.org/en/Content/ArticleLanding/2015/TA/C5TA05657H#!divAbstract
  4. Advanced Materials Interfaces, 2015, 2,
    Haro, M.; Vicente, N.; Garcia-Belmonte, G.         Oxygen Reduction Reaction Promotes Li+ Desorption from Cathode Surface in Li-O2 Batteries.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/admi.201500369/abstract
  5. Applied Physics Letters, 2015, 107, 073301.
    Ansari-Rad, M.; Garcia-Belmonte, G.; Bisquert, J.         Consistent formulation of the crossover from density to velocity dependent recombination in organic solar cells.
    Article page: http://scitation.aip.org/content/aip/journal/apl/107/7/10.1063/1.4928758
  6. Solar Energy Materials & Solar Cells, 2015, 141, 240-247.
    Tessarolo, M.; Guerrero, A.; Gedefaw, D.; Bolognesi, M.; Prosa, M.; Xu, X.; Mansour, M.; Wang, E.; Seri, M.; Andersson, M.R.; Muccini, M.; Garcia-Belmonte, G.         Predicting thermal stability of organic solar cells through an easy and fast capacitance measurement.
    Article page: http://www.sciencedirect.com/science/article/pii/S0927024815002585
  7. The Journal of Physical Chemistry Letters, 2015, 6, 1645-1652.
    Almora, O.; Zarazua, I.; Mas-Marzá, E.; Mora-Seró, I.; Bisquert, J.; Garcia-Belmonte, G.         Capacitive Dark Currents, Hysteresis, and Electrode Polarization in Lead Halide Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.5b00480
  8. The Journal of Physical Chemistry Letters, 2015, 6, 1408-1413.
    Coll, M.; Gómez, A.; Mas-Marzá, E.; Almora, O.; Garcia-Belmonte, G.; Campoy-Quiles, M.; Bisquert, J.         Polarization Switching and Light-enhanced Piezoelectricity in Lead Halide Perovskites.
    Article page: http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.5b00502
  9. Electrochimica Acta, 2015, 163, 323-329.
    Vicente, N.; Haro, M.; Cíntora-Juárez, D.; Pérez-Vicente, C.; Tirado, J.Luis; Ahmad, S.; Garcia-Belmonte, G.         LiFePO4 particle conductive composite strategies for improving cathode rate capability.
    Article page: http://www.sciencedirect.com/science/article/pii/S0013468615004454
  10. Physical Chemistry Chemical Physics, 2015, 17, 4007-14.
    Kirchartz, T.; Bisquert, J.; Mora-Seró, I.; Garcia-Belmonte, G.         Classification of solar cells according to mechanisms of charge separation and charge collection.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2015/CP/C4CP05174B#!divAbstract
  11. ACS Applied Materials and Interfaces, 2015, 7, 1234-1239.
    Kovalenko, A.; Guerrero, A.; Garcia-Belmonte, G.         Role of Vertical Segregation in Semitransparent Organic Photovoltaics.
    Article page: http://pubs.acs.org/doi/abs/10.1021/am5071859
  12. Solar Energy Materials & Solar Cells, 2015, 135, 73-79.
    Kovalenko, A.; Ashcheulov, P.; Guerrero, A.; Heinrichová, P.; Fekete, L.; Vala, M.; Weiter, M.; Kratochvílová, I.; Garcia-Belmonte, G.         Diamond-based electrodes for organic photovoltaic devices.
    Article page: http://www.sciencedirect.com/science/article/pii/S0927024814006229
  13. Organic Electronics, 2015, 16, 227-233.
    Guerrero, A.; Pfannmöller, M.; Kovalenko, A.; Ripollés-Sanchis, T.; Heidari, H.; Bals, S.; Kauffmann, L.D.; Bisquert, J.; Garcia-Belmonte, G.         Nanoscale mapping by electron energy-loss spectroscopy reveals evolution of organic solar cell contact selectivity.
    Article page: http://www.sciencedirect.com/science/article/pii/S1566119914005102?np=y

2014

  1. Advanced Energy Materials, 2014, 4, 1401997.
    Guerrero, A.; Heidari, H.; Ripollés-Sanchis, T.; Kovalenko, A.; Pfannmöller, M.; Bals, S.; Kauffmann, L.D.; Bisquert, J.; Garcia-Belmonte, G.         Shelf Life Degradation of Bulk Heterojunction Solar Cells: Intrinsic Evolution of Charge Transfer Complex.
    Article page: http://dx.doi.org/10.1002/aenm.201401997
  2. Applied Physics Letters, 2014, 105, 133902.
    Guerrero, A.; Juárez-Pérez, E.J.; Bisquert, J.; Mora-Seró, I.; Garcia-Belmonte, G.         Electrical field profile and doping in planar lead halide perovskite solar cells.
    Article page: http://scitation.aip.org/content/aip/journal/apl/105/13/10.1063/1.4896779
  3. Organic Electronics, 2014, 15, 2756-2762.
    Etxebarria, I.; Guerrero, A.; Albero, J.; Garcia-Belmonte, G.; Palomares, E.; Pacios, R.         Inverted vs standard PTB7:PC70BM organic photovoltaic devices. The benefit of highly selective and extracting contacts in device performance.
    Article page: http://www.sciencedirect.com/science/article/pii/S1566119914003267#
  4. Advanced Energy Materials, 2014, 4, 1400805.
    Dkhil, S.B.; Duché, D.; Gaceur, M.; Thakur, A.K.; Aboura, F.Bencheikh; Escoubas, L.; Simon, J.J.; Guerrero, A.; Bisquert, J.; Garcia-Belmonte, G.; Bao, Q.; Fahlman, M.; Videlot-Ackermann, C.; Margeat, O.; Ackermann, J.         Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/aenm.201400805/abstract
  5. Advanced Functional Materials, 2014, 24, 6234-6240.
    Guerrero, A.; Chambon, S.; Hirsch, L.; Garcia-Belmonte, G.         Light-modulated TiOx Interlayer Dipole and Contact Activation in Organic Solar Cell Cathodes.
    Article page: http://onlinelibrary.wiley.com/doi/10.1002/adfm.201401233/abstract
  6. The Journal of Physical Chemistry C, 2014, 118, 18983-18991.
    Bisquert, J.; Bertoluzzi, L.; Mora-Seró, I.; Garcia-Belmonte, G.         Theory of Impedance and Capacitance Spectroscopy of Solar Cells with Dielectric Relaxation, Drift-Diffusion Transport, and Recombination.
    Article page: http://pubs.acs.org/doi/abs/10.1021/jp5062144
  7. Physical Chemistry Chemical Physics, 2014, 16, 17930-17935.
    Haro, M.; Song, T.; Guerrero, A.; Bertoluzzi, L.; Bisquert, J.; Paik, U.; Garcia-Belmonte, G.         Germanium coating boosts lithium uptake in Si nanotube battery anodes.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2014/cp/c4cp02377c#!divAbstract
  8. The Journal of Physical Chemistry Letters, 2014, 5, 2390-2394.
    Juárez-Pérez, E.J.; Sánchez, R.S.; Badia-Bou, L.; Garcia-Belmonte, G.; Kang, Y.Soo; Mora-Seró, I.; Bisquert, J.         Photoinduced Giant Dielectric Constant in Lead Halide Perovskite Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/jz5011169
  9. Journal of Power Sources, 2014, 268, 397-403.
    Acevedo-Peña, P.; Haro, M.; Rincón, M.E.; Bisquert, J.; Garcia-Belmonte, G.         Facile kinetics of Li-ion intake causes superior rate capability in MWCNT@TiO2 nanocomposite battery anodes.
    Article page: http://www.sciencedirect.com/science/article/pii/S0378775314009203
  10. Nanoscale, 2014, 6, 8551-8555.
    Sánchez, R.S.; Binetti, E.; Torre, J.A.; Garcia-Belmonte, G.; Striccoli, M.; Mora-Seró, I.         All solution Processed Low Turn-on Voltage Near Infrared LEDs Based on Core-Shell PbS/CdS Quantum Dots with Inverted Device Structure.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2014/nr/c4nr01975j#!divAbstract
  11. European Journal of Organic Chemistry, 2014, 4585-4591.
    Molina, D.; Guerrero, A.; Garcia-Belmonte, G.; Fernández-Lázaro, F.; Sastre-Santos, Á.         Synthesis of a Fully ConjugatedPhthalocyanine-Diketopyrrolopyrrole-Phthalocyanine Triad as Low Band Gap Donor in Small Molecule Bulk Heterojunction Solar Cells.
    Article page:
  12. The Journal of Physical Chemistry C, 2014, 118, 6069-6076.
    Martinez-Julian, F.; Guerrero, A.; Haro, M.; Bisquert, J.; Bresser, D.; Paillard, E.; Passerini, S.; Garcia-Belmonte, G.         Probing Lithiation Kinetics of Carbon Coated ZnFe2O4 Nanoparticle Battery Anodes.
    Article page: http://pubs.acs.org/doi/abs/10.1021/jp412641v
  13. Physical Chemistry Chemical Physics, 2014, 16, 4082-4091.
    Mandujano-Ramírez, H.J.; González-Vázquez, J.P.; Oskam, G.; Dittrich, T.; Garcia-Belmonte, G.; Mora-Seró, I.; Bisquert, J.; Anta, J.A.         Charge separation at disordered semiconductor heterojunctions from random walk numerical simulations.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2013/cp/c3cp54237h#!divAbstract

2013

  1. Applied Physics Letters, 2013, 103, 243306.
    Ripollés-Sanchis, T.; Guerrero, A.; Garcia-Belmonte, G.         Polymer defect states modulate open-circuit voltage in bulk-heterojunction solar cells.
    Article page: http://scitation.aip.org/content/aip/journal/apl/103/24/10.1063/1.4841475
  2. Journal of Materials Chemistry A, 2013, 1, 12345-12354.
    Guerrero, A.; Montcada, N.F.; Ajuria, J.; Etxebarria, I.; Pacios, R.; Garcia-Belmonte, G.; Palomares, E.         Charge Carrier Transport and Contact Selectivity Limit the Operation of PTB7-Based Organic Solar Cells of Varying Active Layer Thickness.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2013/ta/c3ta12358h
  3. Solar Energy Materials & Solar Cells, 2013, 117, 564-568.
    Ripollés-Sanchis, T.; Guerrero, A.; Azaceta, E.; Tena-Zaera, R.; Garcia-Belmonte, G.         Electrodeposited NiO anode interlayers: Enhancement of the charge carrier selectivity inorganic solar cells.
    Article page: http://www.sciencedirect.com/science/article/pii/S0927024813003668
  4. Physical Chemistry Chemical Physics, 2013, 15, 16456-16462.
    Guerrero, A.; Loser, S.; Garcia-Belmonte, G.; Bruns, C.J.; Smith, J.; Miyauchi, H.; Stupp, S.I.; Bisquert, J.; Marks, T.J.         Solution-Processed Small Molecule:Fullerene Bulk-Heterojunction Solar Cells: Impedance Spectroscopy Deduced Bulk and Interfacial Limits to Fill-Factor.
    Article page: http://pubs.rsc.org/en/content/articlelanding/2013/cp/c3cp52363b
  5. The Journal of Physical Chemistry C, 2013, 117, 17462-17469.
    Xu, C.; Zeng, Y.; Rui, X.; Zhu, J.; Tan, H.; Guerrero, A.; Toribio, J.; Bisquert, J.; Garcia-Belmonte, G.; Yan, Q.         Amorphous Iron Oxyhydroxide Nanosheets: Synthesis, Li Storage and Conversion Reaction Kinetics.
    Article page: 10.1021/jp405848j
  6. ACS Nano, 2013, 7, 4637-4646.
    Guerrero, A.; Dörling, B.; Ripollés-Sanchis, T.; Aghamahammadi, M.; Barrena, E.; Campoy-Quiles, M.; Garcia-Belmonte, G.         Interplay Between Fullerene Surface Coverage and Contact Selectivity of Cathode Interfaces in Organic Solar Cells .
    Article page: http://pubs.acs.org/doi/abs/10.1021/nn4014593
  7. The Journal of Physical Chemistry C, 2013, 117, 8719-8726.
    Ripollés-Sanchis, T.; Raga, S.R.; Guerrero, A.; Welker, M.; Turbiez, M.; Bisquert, J.; Garcia-Belmonte, G.         Molecular Electronic Coupling Controls Charge Recombination Kinetics in Organic Solar Cells of Low Bandgap Diketopyrrolopyrrole, Carbazole, and Thiophene Polymers .
    Article page: http://pubs.acs.org/doi/abs/10.1021/jp402751v
  8. The Journal of Physical Chemistry Letters, 2013, 4, 877-886.
    Garcia-Belmonte, G.; Guerrero, A.; Bisquert, J.         Elucidating Operating Modes of Bulk-Heterojunction Solar Cells from Impedance Spectroscopy Analysis.
    Article page: http://pubs.acs.org/doi/abs/10.1021/jz302064z

2012

  1. Solid State Electronics, 2012,
    Garcia-Belmonte, G.         Carrier recombination flux in bulk heterojunction polymer:fullerene solar cells: Effect of energy disorder on ideality factor.
    Article page: http://www.sciencedirect.com/science/article/pii/S0038110112002596
  2. The Journal of Physical Chemistry C, 2012, 116, 16925-16933.
    Ripollés-Sanchis, T.; Guerrero, A.; Bisquert, J.; Garcia-Belmonte, G.         Diffusion-Recombination Determines Collected Current and Voltage in Polymer:Fullerene Solar Devices.
    Article page: http://pubs.acs.org/doi/abs/10.1021/jp305941f
  3. Organic Electronics, 2012, 13, 2326-2332.
    Guerrero, A.; Ripollés-Sanchis, T.; Boix, P.P.; Garcia-Belmonte, G.         Series resistance in organic bulk-heterojunction solar devices: Modulating carrier transport with fullerene electron traps .
    Article page: http://ac.els-cdn.com/S1566119912003102/1-s2.0-S1566119912003102-main.pdf?_tid=1dcca694-0655-11e2-8ed5-00000aacb35e&acdnat=1348497521_18f0011d6e5256c6a494777d8c614ad0
  4. The Journal of Physical Chemistry Letters, 2012, 3, 1386-1392.
    Guerrero, A.; Marchesi, L.F.; Boix, P.P.; Bisquert, J.; Garcia-Belmonte, G.         Recombination in Organic Bulk Heterojunction Solar Cells: Small Dependence of Interfacial Charge Transfer Kinetics on Fullerene Affinity.
    Article page: http://pubs.acs.org/doi/pdf/10.1021/jz3003958
  5. ACS Nano, 2012, 6, 3453-3460.
    Guerrero, A.; Marchesi, L.F.; Boix, P.P.; Raga, S.R.; Ripollés-Sanchis, T.; Garcia-Belmonte, G.; Bisquert, J.         How Charge-Neutrality Level of Interface States Controls Energy Level Alignment in Cathode Contacts of Organic Bulk-Heterojunction Solar Cells.
    Article page: http://pubs.acs.org/doi/abs/10.1021/nn300486a
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