Perovskite Quantum Dot Photovoltaic Materials beyond the Reach of Thin Films: Full-Range Tuning of A-Site Cation Composition

Hazarika, Abhijit; Zhao, Qian; Gaulding, E. Ashley; Christians, Jeffrey A.; Dou, Benjia; Marshall, Ashley R.; Moot, Taylor; Berry, Joseph J.; Johnson, Justin C.; Luther, Joseph M.

doi:10.1021/acsnano.8b05555

Title: Perovskite Quantum Dot Photovoltaic Materials beyond the Reach of Thin Films: Full-Range Tuning of A-Site Cation Composition

Journal Article · 25 September 2018 · ACS Nano

DOI: https://doi.org/10.1021/acsnano.8b05555 · OSTI ID:1476707

^[1]; Zhao, Qian ^[2]; Gaulding, E. Ashley ^[1];

^[1]; Dou, Benjia ^[3]; Marshall, Ashley R. ^[1]; Moot, Taylor ^[1];

^[1];

^[1]

National Renewable Energy Lab. (NREL), Golden, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States); Nankai Univ., Tianjin (China)
National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)

We present a cation-exchange approach for tunable A-site alloys of cesium (Cs⁺) and formamidinium (FA⁺) lead triiodide perovskite nanocrystals that enables the formation of compositions spanning the complete range of Cs_1-xFA_xPbI₃, unlike thin-film alloys or the direct synthesis of alloyed perovskite nanocrystals. These materials show bright and finely tunable emission in the red and near-infrared range between 650 and 800 nm. The activation energy for the miscibility between Cs⁺ and FA⁺ is measured (~0.65 eV) and is shown to be higher than reported for X-site exchange in lead halide perovskites. We use these alloyed colloidal perovskite quantum dots to fabricate photovoltaic devices. In addition to the expanded compositional range for Cs_1-xFA_xPbI₃ materials, the quantum dot solar cells exhibit high open-circuit voltage (VOC) with a lower loss than the thin-film perovskite devices of similar compositions.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Center for Advanced Solar Photophysics (CASP); National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1476707

Report Number(s):: NREL/JA-5900-71956

Journal Information:: ACS Nano, Vol. 12, Issue 10; ISSN 1936-0851

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 153 works

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Facile Room‐Temperature Anion Exchange Reactions of Inorganic Perovskite Quantum Dots Enabled by a Modular Microfluidic Platform Abdel‐Latif, Kameel; Epps, Robert W.; Kerr, Corwin B. Advanced Functional Materials, Vol. 29, Issue 23 https://doi.org/10.1002/adfm.201900712	journal	March 2019
CsI‐Antisolvent Adduct Formation in All‐Inorganic Metal Halide Perovskites Moot, Taylor; Marshall, Ashley R.; Wheeler, Lance M. Advanced Energy Materials, Vol. 10, Issue 9 https://doi.org/10.1002/aenm.201903365	journal	January 2020
Lead halide perovskites for photocatalytic organic synthesis Zhu, Xiaolin; Lin, Yixiong; San Martin, Jovan Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-10634-x	journal	June 2019
Conductivity Tuning via Doping with Electron Donating and Withdrawing Molecules in Perovskite CsPbI ₃ Nanocrystal Films Gaulding, E. Ashley; Hao, Ji; Kang, Hyun Suk Advanced Materials, Vol. 31, Issue 27 https://doi.org/10.1002/adma.201902250	journal	May 2019
Perovskite nanocrystals for energy conversion and storage Kostopoulou, Athanasia; Brintakis, Konstantinos; Nasikas, Nektarios K. Nanophotonics, Vol. 8, Issue 10 https://doi.org/10.1515/nanoph-2019-0119	journal	July 2019
Getting high with quantum dot solar cells Jean, Joel Nature Energy, Vol. 5, Issue 1 https://doi.org/10.1038/s41560-019-0534-8	journal	January 2020
Ligand-assisted cation-exchange engineering for high-efficiency colloidal Cs1−xFAxPbI3 quantum dot solar cells with reduced phase segregation Hao, Mengmeng; Bai, Yang; Zeiske, Stefan Nature Energy, Vol. 5, Issue 1 https://doi.org/10.1038/s41560-019-0535-7	journal	January 2020
Halide Perovskite Nanocrystals for Next‐Generation Optoelectronics Liu, Maning; Zhang, Haichang; Gedamu, Dawit Small, Vol. 15, Issue 28 https://doi.org/10.1002/smll.201900801	journal	April 2019
Lead halide perovskites for photocatalytic organic synthesis Zhu, Xiaolin; Lin, Yixiong; San Martin, Jovan Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-10634-x	journal	June 2019
High efficiency perovskite quantum dot solar cells with charge separating heterostructure Zhao, Qian; Hazarika, Abhijit; Chen, Xihan Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-10856-z	journal	June 2019