Additive Engineering for Efficient and Stable Perovskite Solar Cells

Zhang, Fei; Zhu, Kai

doi:10.1002/aenm.201902579

Title: Additive Engineering for Efficient and Stable Perovskite Solar Cells

Journal Article · Fri Oct 04 00:00:00 EDT 2019 · Advanced Energy Materials

DOI:https://doi.org/10.1002/aenm.201902579· OSTI ID:1570188

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National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemistry and Nanoscience Center

Abstract Perovskite solar cells (PSCs) have reached a certified 25.2% efficiency in 2019 due to their high absorption coefficient, high carrier mobility, long diffusion length, and tunable direct bandgap. However, due to the nature of solution processing and rapid crystal growth of perovskite thin films, a variety of defects can form as a result of the precursor compositions and processing conditions. The use of additives can affect perovskite crystallization and film formation, defect passivation in the bulk and/or at the surface, as well as influence the interface tuning of structure and energetics. Here, recent progress in additive engineering during perovskite film formation is discussed according to the following common categories: Lewis acid (e.g., metal cations, fullerene derivatives), Lewis base based on the donor type (e.g., O‐donor, S‐donor, and N‐donor), ammonium salts, low‐dimensional perovskites, and ionic liquid. Various additive‐assisted strategies for interface optimization are then summarized; additives include modifiers to improve electron‐ and hole‐transport layers as well as those to modify perovskite surface properties. Finally, an outlook is provided on research trends with respect to additive engineering in PSC development.

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1570188

Alternate ID(s):: OSTI ID: 1569293

Report Number(s):: NREL/JA-5900-74576; MainId:19903; UUID:a0ddcd93-caba-e911-9c24-ac162d87dfe5; MainAdminID:8380

Journal Information:: Advanced Energy Materials, Vol. 10, Issue 13; ISSN 1614-6832

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 435 works

Citation information provided by
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