DataVXACS Energy LettersPaper
journal article·2022-06-10

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

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, Abdullah 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

ACS Energy Letters· Volume 7· Issue 6
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Source abstract

Abstract

Solution-processed organic semiconductor layers on rough surfaces tend to vary widely in thickness, significantly hindering charge extraction in relevant optoelectronic devices. Herein, we report the photoactivated p-doping of hole-transporting material (HTM) 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. We used the ionic compound 4-isopropyl-4′-methyldiphenyliodonium tetrakis(penta-fluorophenyl-borate) (DPI-TPFB) as a p-type dopant in poly(triaryl amine) (PTAA), which we used as the HTM. We observed that light soaking DPI-TPFB-doped PTAA shows approximately 22 times higher conductivity compared with an undoped PTAA film, which translated into an improved fill factor (FF) for tandem solar cells. Our tandem solar cells achieved an ∼80% FF and 27.8% efficiency and operated at their maximum power point for 200 h without loss of performance, in addition to retaining ∼83% of initial performance over a month of operation in an outdoor environment.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Organic Electronics and Photovoltaics · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Division of Physical Sciences and Engineering, Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia

National Renewable Energy Laboratory, Golden, Colorado 80401, United States

KAUST Solar Center (KSC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia

Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States

Department of Chemistry & INSTM, Università di Pavia, Via T. Taramelli 14, Pavia 27100, Italy

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China

Saudi Aramco Research & Development Center, Dhahran 31311, Kingdom of Saudi Arabia

Division of Physical Sciences and Engineering, Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia

Funding

King Abdullah University of Science and Technology · National Science Foundation · Division of Materials Research

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