Publications

Temperature-Dependent Optical Modeling of Perovskite Solar Cells

Article Year: 2022 DOI:https://doi.org/10.1021/acs.jpcc.2c04768

Authors: Waseem Raja, Thomas G. Allen, Ahmed Ali Said, Ohoud Alharbi, Erkan Aydin, Michele De Bastiani, Stefaan De Wolf

Electrical conductivity
Ellipsometry
Optical properties
Perovskites
Solar cells

Metal-Free Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Enhanced Outdoor Stability

Article Year: 2022 DOI:https://doi.org/10.1021/acsaem.2c01749

Authors: Han Xu, Luis Torres Merino, Mehmet Koc, Erkan Aydin, Shynggys Zhumagali, Md Azimul Haque, Aren Yazmaciyan, Anirudh Sharma, Diego Rosas Villalva, Luis Huerta Hernandez, Michele De Bastiani, Maxime Babics, Furkan H. Isikgor, Joel Troughton, Stefaan De Wolf, Selcuk Yerci, Derya Baran

Conjugated polymers
Deposition
Layers
Perovskites
Solar cells

Regulating surface potential maximizes voltage in all-perovskite tandems

Article Year: 2022 DOI:https://doi.org/10.1038/s41586-022-05541-z

Authors: Hao Chen, Aidan Maxwell, Chongwen Li, Sam Teale, Bin Chen, Tong Zhu, Esma Ugur, George Harrison, Luke Grater, Junke Wang, Zaiwei Wang, Lewei Zeng, So Min Park, Lei Chen, Peter Serles, Rasha Abbas Awni, Biwas Subedi, Xiaopeng Zheng, Chuanxiao Xiao, Nikolas J. Podraza, Tobin Filleter, Cheng Liu, Yi Yang, Joseph M. Luther, Stefaan De Wolf, Mercouri G. Kanatzidis, Yanfa Yan, Edward H. Sargent

Electronic properties and materials
Photonic devices
Solar cells

Light-induced activation of boron doping in hydrogenated amorphous silicon for over 25% efficiency silicon solar cells

Article Year: 2022 DOI:https://doi.org/10.1038/s41560-022-01018-5

Authors: Wenzhu Liu, Jianhua Shi, Liping Zhang, Anjun Han, Shenglei Huang, Xiaodong Li, Jun Peng, Yuhao Yang, Yajun Gao, Jian Yu, Kai Jiang, Xinbo Yang, Zhenfei Li, Wenjie Zhao, Junlin Du, Xi Song, Jun Yin, Jie Wang, Youlin Yu, Qiang Shi, Zhixin Ma, Haichuan Zhang, Jiajia Ling, Lujia Xu, Jingxuan Kang, Fuzong Xu, Jiang Liu, Hanyuan Liu, Yi Xie, Fanying Meng, Stefaan De Wolf, Frédéric Laquai, Zengfeng Di, Zhengxin Liu

Devices for energy harvesting
Solar cells

Photo-induced enhancement of lattice fluctuations in metal-halide perovskites

Article Year: 2022 DOI:https://doi.org/10.1038/s41467-022-28532-0

Authors: Mingcong Wang, Yajun Gao, Kai Wang, Jiang Liu, Stefaan De Wolf, Frédéric Laquai

Mechanical Reliability of Fullerene/Tin Oxide Interfaces in Monolithic Perovskite/Silicon Tandem Cells

Letter Year: 2022 DOI:https://doi.org/10.1021/acsenergylett.1c02148

Authors: Michele De Bastiani, Giovanni Armaroli, Rawan Jalmood, Laura Ferlauto, Xiaole Li, Ran Tao, George T. Harrison, Mathan K. Eswaran, Randi Azmi, Maxime Babics, Anand S. Subbiah, Erkan Aydin, Thomas G. Allen, Craig Combe, Tobias Cramer, Derya Baran, Udo Schwingenschlögl, Gilles Lubineau, Daniela Cavalcoli, Stefaan De Wolf

Monolithic Perovskite/Silicon Tandem Photovoltaics with Minimized Cell-to-Module Losses by Refractive-Index Engineering

Article Year: 2022 DOI:https://doi.org/10.1021/acsenergylett.2c01142

Authors: Lujia Xu, Jiang Liu, Francesco Toniolo, Michele De Bastiani, Maxime Babics, wenbo Yan, Fuzong Xu, Jingxuan Kang, Thomas Allen, Arsalan Razzaq, Erkan Aydin, Stefaan De Wolf

Absorption
Amorphous materials
Optimization
Power conversion efficiency
Solar cells

18.9% Efficient Organic Solar Cells Based on n-Doped Bulk-Heterojunction and Halogen-Substituted Self-Assembled Monolayers as Hole Extracting Interlayers

Research Article Year: 2022 DOI:https://doi.org/10.1002/aenm.202202503

Authors: Yuanbao Lin, Yadong Zhang, Junxiang Zhang, Mantas Marcinskas, Tadas Malinauskas, Artiom Magomedov, Mohamad Insan Nugraha, Dimitris Kaltsas, Dipti R. Naphade, George T. Harrison, Abdulrahman El-Labban, Stephen Barlow, Stefaan De Wolf, Ergang Wang, Iain McCulloch, Leonidas Tsetseris, Vytautas Getautis, Seth R. Marder, Thomas D. Anthopoulos

Molecular dopants
Organic bulk-heterojunctions
Organic semiconductors
organic solar cells
Self-assembled monolayers
Solution processing

Generation of long-lived charges in organic semiconductor heterojunction nanoparticles for efficient photocatalytic hydrogen evolution

Article Year: 2022 DOI:https://doi.org/10.1038/s41560-022-00990-2

Authors: Jan Kosco, Soranyel Gonzalez- Carrero, Calvyn T. Howells, Teng Fei, Yifang Dong, Rachid Sougrat, George T. Harrison, Yuliar Firdaus, Rajendar Sheelamanthula, Balaji Purushothaman, Floriana Moruzzi, Weidong Xu, Lingyun Zhao, Aniruddha Basu, Stefaan De Wolf, Thomas D. Anthopoulos, James R.Durrant, Iain McCulloch

Quantitative Analysis of Nanorough Hydrogenated Si(111) Surfaces through Vibrational Spectral Assignment by Periodic DFT Calculations

Article Year: 2022 DOI:https://doi.org/10.1021/acs.jpcc.1c09766

Authors: Jakub Holovsky, Jakub Sebera, Vladimir Sychrovsky, Jan Zemen, Stefaan De Wolf, Christophe Ballif

Molecular structure
Quantum mechanics
Etching Silicon
Oscillation

Photoactivated p-Doping of Organic Interlayer Enables Efficient Perovskite/Silicon Tandem Solar Cells

Letter Year: 2022 DOI:https://doi.org/10.1021/acsenergylett.2c00780

Authors: Xiaopeng Zheng, Jiang Liu, Tuo Liu, Erkan Aydin, Min Chen, wenbo Yan, Michele De Bastiani, Thomas G. Allen, Shuai Yuan, Ahmad R. Kirmani, Kyle N. Baustert, Michael F. Salvador, Bekir Turedi, Adbullah Y. Alsalloum, Khulud Almasabi, Konstantinos Kotsovos, Issam Gereige, Liang-Sheng Liao, Joseph M. Luther, Kenneth R. Graham, Omar F. Mohammed, Stefaan De Wolf, Osman M. Bakr

This work, which took place in ACS Energy Letters, reports the photoactivated p-doping of PTAA (widely used hole transport layer) to enhance hole extraction for (textured) perovskite/silicon tandem solar cells, making the device performance less sensitive to the variation of hole transport layer thickness.

doping
light
Power conversion efficiency
silicon
Solar cells

Scaled Deposition of Ti3C2Tx MXene on Complex Surfaces: Application Assessment as Rear Electrodes for Silicon Heterojunction Solar Cells

Article Year: 2022 DOI:https://doi.org/10.1021/acsnano.1c08871

Authors: Erkan Aydin, Jehad K. El-Demellawi, Emre Yarali, Faisal Aljamaan, Simone Sansoni, Atteq ur Rehman, George T. Harrison, Jingxuan Kang, Abdulrahman El-Labban, Michele De Bastiani, Arsalan Razzaq, Emmanuel Van Kerschaver, Thomas G. Allen, Omar F. Mohammed, Thomas D. Anthopoulos, Husam N. Alshareef, Stefaan De Wolf

This work, which took place in ACS Nano, introduces the scalability potential of the highly conductive MXene films and assesses their applicability as rear electrodes for silicon heterojunction solar cells.

Uniform coatings
Textured surfaces
Cost-effective electrodes
Large-area devices
Industrial-size MXene

Monolithic Perovskite/Silicon Tandems with >28% Efficiency: Role of Silicon-Surface Texture on Perovskite Properties

Research Article Year: 2022 DOI:https://doi.org/10.1002/adfm.202205557

Authors: Michele De Bastiani, Rawan Jalmood, Jiang Liu, Christina Ossig, Ales Vlk, Karol Vegso, Maxime Babics, Furkan H. Isikgor, Anand S. Selvin, Randi Azmi, Esma Ugur, Swarnendu Banerjee, Alessandro J. Mirabelli, Erkan Aydin, Thomas G. Allen, Atteq ur Rehman, Emmanuel Van Kerschaver, Petter Siffalovic, Michael E. Stuckelberger, Martin Ledinsky, Stefaan De Wolf

Current matching
Perovskite photovoltaics
Perovskite/silicon tandem solar cells
Silicon heterojunction solar cells
Silicon texturing

Accurate Optical Modeling of Monolithic Perovskite/Silicon Tandem Solar Cells and Modules on Textured Silicon Substrates

Article Year: 2022 DOI:https://doi.org/10.1103/PRXEnergy.1.023005

Authors: Lujia Xu, Jiang Liu, Keith Mclntosh, Malcolm Abbott, Erkan Aydin, Thomas Allen, Michele De Bastiani, Maxime Babics, Jingxuan Kang, Mohammed Alamer, wenbo Yan, Wenzhu Liu, Fuzong Xu, Atteq ur Rehman, Stefaan De Wolf

Silicon heterojunction solar cells: Techno-economic assessment and opportunities

Perspective Year: 2022 DOI:https://doi.org/10.1016/j.joule.2022.02.009

Authors: Arsalan Razzaq, Thomas G. Allen, Wenzhu Liu, Zhengxin Liu, Stefaan De Wolf

Arsalan Razzaq and colleagues from KPV-Lab recently published their perspective in Joule, discussing the techno-economic barriers for the industrial adoption of silicon heterojunction technology. This work highlights critical areas that need to be addressed for enabling terawatt-scale silicon heterojunction deployment.

Silicon photovoltaics
passivating contacts
silicon heterojunction

Life on the Urbach Edge

Perspective Year: 2022 DOI:https://doi.org/10.1021/acs.jpclett.2c01812

Authors: Esma Ugur, Martin Ledinský, Thomas G. Allen, Jakub Holovsky, Ales Vlk, Stefaan De Wolf

Absorption
Materials
Perovskites
Photovoltaics
Semiconductors

Efficient and stable perovskite-silicon tandem solar cells through contact displacement by MgFx

Report Year: 2022 DOI:https://doi.org/10.1126/science.abn8910

Authors: Jiang Liu, Michele De Bastiani, Erkan Aydin, George T. Harrison, Yajun Gao, Rakesh R. Pradhan, Mathan K. Eswaran, Mukunda Mandal, wenbo Yan, Akmaral Seitkhan, Maxime Babics, Anand S. Subbiah, Esma Ugur, Fuzong Xu, Lujia Xu, Mingcong Wang, Atteq ur Rehman, Arsalan Razzaq, Jingxuan Kang, Randi Azmi, Ahmed Ali Said, Furkan H. Isikgor, Thomas G. Allen, Denis Andrienko, Udo Schwingenschlögl, Frédéric Laquai, Stefaan De Wolf

Unleashing the Full Power of Perovskite/Silicon Tandem Modules with Solar Trackers

Letter Year: 2022 DOI:https://doi.org/10.1021/acsenergylett.2c00442

Authors: Maxime Babics, Michele De Bastiani, Ahmed Hesham Balawi, Esma Ugur, Erkan Aydin, Anand S. Subbiah, Jiang Liu, Lujia Xu, Randi Azmi, Thomas G. Allen, Atteq ur Rehman, Thomas Altmann, Michael F. Salvador, Stefaan De Wolf

Solar cells
Photovoltaics
Perovskites
Energy
Solar energy

High-performing organic electronics using terpene green solvents from renewable feedstocks

Article Year: 2022 DOI:https://doi.org/10.1038/s41560-022-01167-7

Authors: Daniel Corzo, Diego Rosas Villalva, Amruth C, Guillermo Tostado-Blázquez, Emily Bezerra Alexandre, Luis Huerta Hernandez, Jianhua Han, Han Xu, Maxime Babics, Stefaan De Wolf, Derya Baran

Electronic devices
Solar cells

Probing Ultrafast Interfacial Carrier Dynamics in Metal Halide Perovskite Films and Devices by Transient Reflection Spectroscopy

Forum article Year: 2022 DOI:https://doi.org/10.1021/acsami.2c03016

Authors: Yajun Gao, Jiang Liu, Furkan H. Isikgor, Mingcong Wang, Jafar I.Khan, Stefaan De Wolf, Frédéric Laquai

carrier dynamics
interfaces
Perovskites
recombination
thin films