Dr Oskar Sandberg

Swyddog Ymchwil, Physics

+44 (0) 1792 205678 ext 1518

o.j.sandberg@abertawe.ac.uk

Dolenni Ymchwil

https://orcid.org/0000-0003-3778-8746

410
Pedwerydd Llawr
Adeilad Vivian
Campws Singleton

Trosolwg

Mae Dr Oskar Sandberg yn aelod o’r Adran Ffiseg ym Mhrifysgol Abertawe.

Cyhoeddiadau

Uchafbwyntiau Ymchwil

Sandberg, O., Dahlström, S., Nyman, M., Wilken, S., Scheunemann, D., & Österbacka, R. (2019). Impact of a Doping-Induced Space-Charge Region on the Collection of Photogenerated Charge Carriers in Thin-Film Solar Cells Based on Low-Mobility Semiconductors. Physical Review Applied, 12(3)
https://doi.org/10.1103/PhysRevApplied.12.034008, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52195
Sandberg, O. & Nyman, M. (2019). Charge extraction by a linearly increasing voltage of photo-generated carriers: The influence of two mobile carrier types, bimolecular recombination, and series resistance. Organic Electronics, 64, 97-103.
https://doi.org/10.1016/j.orgel.2018.10.017, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa45468
Ahläng, C., Sandberg, O., & Österbacka, R. (2018). Two-dimensional drift-diffusion study of mid-gap states and subsequent vacuum level shifts at interfaces in bulk-heterojunction solar cells. Physical Review B, 98(7)
https://doi.org/10.1103/PhysRevB.98.075306, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa43600
Kerremans, R., Sandberg, O., Meroni, S., Watson, T., Armin, A., & Meredith, P. (2020). On the Electro‐Optics of Carbon Stack Perovskite Solar Cells. Solar RRL, 4(2), 1900221
https://doi.org/10.1002/solr.201900221, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52738
Sandberg, O., Kurpiers, J., Stolterfoht, M., Neher, D., Meredith, P., Shoaee, S., & Armin, A. (2020). On the Question of the Need for a Built‐In Potential in Perovskite Solar Cells. Advanced Materials Interfaces, 7(10), 2000041
https://doi.org/10.1002/admi.202000041, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53844
Sandberg, O., Zeiske, S., Zarrabi, N., Meredith, P., & Armin, A. (2020). Charge Carrier Transport and Generation via Trap-Mediated Optical Release in Organic Semiconductor Devices. Physical Review Letters, 124(12)
https://doi.org/10.1103/physrevlett.124.128001, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53867
http://dx.doi.org/10.1103/physrevlett.124.128001
Wilken, S., Sandberg, O., Scheunemann, D., & Österbacka, R. (2020). Watching Space Charge Build Up in an Organic Solar Cell. Solar RRL, 4(3), 1900505
https://doi.org/10.1002/solr.201900505, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54226
Tokmoldin, N., Hosseini, S., Raoufi, M., Phuong, L., Sandberg, O., Guan, H., Zou, Y., Neher, D., & Shoaee, S. (2020). Extraordinarily long diffusion length in PM6:Y6 organic solar cells. Journal of Materials Chemistry A, 8(16), 7854-7860.
https://doi.org/10.1039/d0ta03016c, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54282
Armin, A., Zarrabi, N., Sandberg, O., Kaiser, C., Zeiske, S., Li, W., & Meredith, P. (2020). Limitations of Charge Transfer State Parameterization Using Photovoltaic External Quantum Efficiency. Advanced Energy Materials, 10(41), 2001828
https://doi.org/10.1002/aenm.202001828, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55526
Zarrabi, N., Sandberg, O., Zeiske, S., Li, W., Riley, D., Meredith, P., & Armin, A. (2020). Charge-generating mid-gap trap states define the thermodynamic limit of organic photovoltaic devices. Nature Communications, 11(1)
https://doi.org/10.1038/s41467-020-19434-0, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55637

Holl Ymchwil

Erthyglau Cylchgronau

Turedi, B., Lintangpradipto, M., Sandberg, O., Yazmaciyan, A., Matt, G., Alsalloum, A., Almasabi, K., Sakhatskyi, K., Yakunin, S., Zheng, X., Naphade, R., Nematulloev, S., Yeddu, V., Baran, D., Armin, A., Saidaminov, M., Kovalenko, M., Mohammed, O., & Bakr, O. (2022). Single‐Crystal Perovskite Solar Cells Exhibit Close to Half A Millimeter Electron‐Diffusion Length. Advanced Materials, 34(47), 2202390
https://doi.org/10.1002/adma.202202390, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62271
ZEISKE, S., Li, W., Meredith, P., Armin, A., & Sandberg, O. (2022). Light intensity dependence of the photocurrent in organic photovoltaic devices. Cell Reports Physical Science, 3(10), 101096
https://doi.org/10.1016/j.xcrp.2022.101096, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa61555
Kim, J., Kim, Y., Kim, J., Oh, C., Hwang, I., Kim, J., Zeiske, S., Ki, T., Kwon, S., Kim, H., Armin, A., Suh, H., Lee, K., Kim, Y., Sandberg, O., Zeiske, S., Burwell, G., Riley, D., Meredith, P., & Armin, A. (2022). Efficient and Stable Perovskite Solar Cells with a High Open‐Circuit Voltage Over 1.2 V Achieved by a Dual‐Side Passivation Layer. Advanced Materials, 34(41), 2205268
https://doi.org/10.1002/adma.202205268, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62576
http://dx.doi.org/10.1002/adma.202205268
Zeiske, S., Sandberg, O., Zarrabi, N., Wolff, C., Raoufi, M., Peña-Camargo, F., Gutierrez-Partida, E., Meredith, P., Stolterfoht, M., & Armin, A. (2022). Static Disorder in Lead Halide Perovskites. The Journal of Physical Chemistry Letters, 13(31), 7280-7285.
https://doi.org/10.1021/acs.jpclett.2c01652, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60632
Kay, A., Sandberg, O., Zarrabi, N., Li, W., Zeiske, S., KAISER, C., Meredith, P., & Armin, A. (2022). Quantifying the Excitonic Static Disorder in Organic Semiconductors. Advanced Functional Materials, 32(32), 2113181
https://doi.org/10.1002/adfm.202113181, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60155
Burwell, G., Sandberg, O., Li, W., Meredith, P., Carnie, M., & Armin, A. (2022). Scaling Considerations for Organic Photovoltaics for Indoor Applications. Solar RRL, 6(7), 2200315
https://doi.org/10.1002/solr.202200315, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60153
Bai, S., Li, R., Huang, H., Qi, Y., Xu, Y., Song, J., Yao, F., Sandberg, O., Meredith, P., Armin, A., & Lin, Q. (2022). Transient analysis of photomultiplication-type organic photodiodes. Applied Physics Reviews, 9(2), 021405
https://doi.org/10.1063/5.0083361, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60049
Riley, D., Meredith, P., Armin, A., & Sandberg, O. (2022). Role of Exciton Diffusion and Lifetime in Organic Solar Cells with a Low Energy Offset. The Journal of Physical Chemistry Letters, 13(20), 4402-4409.
https://doi.org/10.1021/acs.jpclett.2c00791, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60050
Sun, B., Sandberg, O., Neher, D., Armin, A., & Shoaee, S. (2022). Wave Optics of Differential Absorption Spectroscopy in Thick-Junction Organic Solar Cells: Optical Artifacts and Correction Strategies. Physical Review Applied, 17(5)
https://doi.org/10.1103/physrevapplied.17.054016, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa60051
Zeiske, S., Sandberg, O., Kurpiers, J., Shoaee, S., Meredith, P., & Armin, A. (2022). Probing Charge Generation Efficiency in Thin-Film Solar Cells by Integral-Mode Transient Charge Extraction. ACS Photonics, 9(4), 1188-1195.
https://doi.org/10.1021/acsphotonics.1c01532, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa59906
Riley, D., Sandberg, O., Li, W., Meredith, P., & Armin, A. (2022). Quasi-Steady-State Measurement of Exciton Diffusion Lengths in Organic Semiconductors. Physical Review Applied, 17(2)
https://doi.org/10.1103/physrevapplied.17.024076, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa59507
Li, W., Zeiske, S., Sandberg, O., Riley, D., Meredith, P., & Armin, A. (2021). Organic solar cells with near-unity charge generation yield. Energy & Environmental Science, 14(12), 6484-6493.
https://doi.org/10.1039/d1ee01367j, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa58680
Wang, P., Li, W., Sandberg, O., Guo, C., Sun, R., Wang, H., Li, D., Zhang, H., Cheng, S., Liu, D., Min, J., Armin, A., & Wang, T. (2021). Tuning of the Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Record Efficiency Exceeding 21%. Nano Letters, 21(18), 7845-7854.
https://doi.org/10.1021/acs.nanolett.1c02897, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57956
Sandberg, O. & Armin, A. (2021). Energetics and Kinetics Requirements for Organic Solar Cells to Break the 20% Power Conversion Efficiency Barrier. The Journal of Physical Chemistry C, 125(28), 15590-15598.
https://doi.org/10.1021/acs.jpcc.1c03656, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57309
Kaiser, C., Sandberg, O., Zarrabi, N., Li, W., Meredith, P., & Armin, A. (2021). A universal Urbach rule for disordered organic semiconductors. Nature Communications, 12(1)
https://doi.org/10.1038/s41467-021-24202-9, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57311
Riley, D., Sandberg, O., Wilson, N., Li, W., Zeiske, S., Zarrabi, N., Meredith, P., Österbacka, R., & Armin, A. (2021). Direct Quantification of Quasi-Fermi-Level Splitting in Organic Semiconductor Devices. Physical Review Applied, 15(6)
https://doi.org/10.1103/physrevapplied.15.064035, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57310
Zeiske, S., Sandberg, O., Zarrabi, N., Li, W., Meredith, P., & Armin, A. (2021). Direct observation of trap-assisted recombination in organic photovoltaic devices. Nature Communications, 12(1)
https://doi.org/10.1038/s41467-021-23870-x, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57312
Phuong, L., Hosseini, S., Sandberg, O., Zou, Y., Woo, H., Neher, D., & Shoaee, S. (2021). Quantifying Quasi‐Fermi Level Splitting and Open‐Circuit Voltage Losses in Highly Efficient Nonfullerene Organic Solar Cells. Solar RRL, 5(1), 2000649-2000649.
https://doi.org/10.1002/solr.202000649, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa56966
Zarrabi, N., Sandberg, O., Zeiske, S., Li, W., Riley, D., Meredith, P., & Armin, A. (2020). Charge-generating mid-gap trap states define the thermodynamic limit of organic photovoltaic devices. Nature Communications, 11(1)
https://doi.org/10.1038/s41467-020-19434-0, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55637
Burwell, G., Burridge, N., Sandberg, O., Bond, E., Li, W., Meredith, P., & Armin, A. (2020). Metal Grid Structures for Enhancing the Stability and Performance of Solution‐Processed Organic Light‐Emitting Diodes. Advanced Electronic Materials, 6(12), 2000732
https://doi.org/10.1002/aelm.202000732, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55638
Armin, A., Zarrabi, N., Sandberg, O., Kaiser, C., Zeiske, S., Li, W., & Meredith, P. (2020). Limitations of Charge Transfer State Parameterization Using Photovoltaic External Quantum Efficiency. Advanced Energy Materials, 10(41), 2001828
https://doi.org/10.1002/aenm.202001828, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa55526
Dahlström, S., Liu, X., Yan, Y., Sandberg, O., Nyman, M., Liang, Z., & Österbacka, R. (2020). Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells. ACS Applied Energy Materials, 3(9), 9190-9197.
https://doi.org/10.1021/acsaem.0c01539, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa57802
Sandberg, O., Kurpiers, J., Stolterfoht, M., Neher, D., Meredith, P., Shoaee, S., & Armin, A. (2020). On the Question of the Need for a Built‐In Potential in Perovskite Solar Cells. Advanced Materials Interfaces, 7(10), 2000041
https://doi.org/10.1002/admi.202000041, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53844
Tokmoldin, N., Hosseini, S., Raoufi, M., Phuong, L., Sandberg, O., Guan, H., Zou, Y., Neher, D., & Shoaee, S. (2020). Extraordinarily long diffusion length in PM6:Y6 organic solar cells. Journal of Materials Chemistry A, 8(16), 7854-7860.
https://doi.org/10.1039/d0ta03016c, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54282
Sandberg, O., Zeiske, S., Zarrabi, N., Meredith, P., & Armin, A. (2020). Charge Carrier Transport and Generation via Trap-Mediated Optical Release in Organic Semiconductor Devices. Physical Review Letters, 124(12)
https://doi.org/10.1103/physrevlett.124.128001, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53867
http://dx.doi.org/10.1103/physrevlett.124.128001
Wilken, S., Sandberg, O., Scheunemann, D., & Österbacka, R. (2020). Watching Space Charge Build Up in an Organic Solar Cell. Solar RRL, 4(3), 1900505
https://doi.org/10.1002/solr.201900505, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54226
Kerremans, R., Sandberg, O., Meroni, S., Watson, T., Armin, A., & Meredith, P. (2020). On the Electro‐Optics of Carbon Stack Perovskite Solar Cells. Solar RRL, 4(2), 1900221
https://doi.org/10.1002/solr.201900221, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52738
Sandberg, O., Dahlström, S., Nyman, M., Wilken, S., Scheunemann, D., & Österbacka, R. (2019). Impact of a Doping-Induced Space-Charge Region on the Collection of Photogenerated Charge Carriers in Thin-Film Solar Cells Based on Low-Mobility Semiconductors. Physical Review Applied, 12(3)
https://doi.org/10.1103/PhysRevApplied.12.034008, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa52195
Sandberg, O. & Nyman, M. (2019). Charge extraction by a linearly increasing voltage of photo-generated carriers: The influence of two mobile carrier types, bimolecular recombination, and series resistance. Organic Electronics, 64, 97-103.
https://doi.org/10.1016/j.orgel.2018.10.017, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa45468
Ahläng, C., Sandberg, O., & Österbacka, R. (2018). Two-dimensional drift-diffusion study of mid-gap states and subsequent vacuum level shifts at interfaces in bulk-heterojunction solar cells. Physical Review B, 98(7)
https://doi.org/10.1103/PhysRevB.98.075306, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa43600
Armin, A., Sandberg, O., Meredith, P., & Zarrabi, N. (n.d.) Sub-Gap Absorption in Organic Semiconductors. Journal of Physical Chemistry Letters
https://doi.org/10.1021/acs.jpclett.3c00021, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62804
KAISER, C., Sandberg, O., Zeiske, S., Gielen, S., Maes, W., Vandewal, K., Meredith, P., & Armin, A. (n.d.) Mid-gap Trap State Mediated Dark Current in Organic Photodiodes. Nature Photonics
https://doi.org/10.21203/rs.3.rs-710876/v1, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa62816
http://dx.doi.org/10.21203/rs.3.rs-710876/v1

Goruchwyliaeth

On the Relation Between Exciton Dynamics and Nano-Morphology in Organic Semiconductor Blends (dyfarnwyd 2023)

PhD

Goruchwyliwr arall: Prof Paul Meredith

Goruchwyliwr arall: Dr Ardalan Armin