2021 Pioneers in Energy Research: Vivian Yam

Wu, Hongwei

doi:10.1021/acs.energyfuels.1c03286

Energy Fuels

2021

DOI: 10.1021/acs.energyfuels.1c03286

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2021 Pioneers in Energy Research: Vivian Yam

Hongwei Wu

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Cited by 3 publications

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“…• Professor Vivian Yam, The University of Hong Kong, as the PIER in the field of solar energy and conversion of light for her outstanding contribution to the area of novel excited states for organic light-emitting materials/ devices and solar energy conversion. For further information, please see the editorial (10.1021/acs.energyfuels.1c03286)5 of "2021 Pioneers in Energy Research: Vivian Yam" SI and Q&A with Professor Vivian Yam (10.1021/acs.energyfuels.1c03289) 6. NotesViews expressed in this editorial are those of the author and not necessarily the views of the ACS.…”

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Celebrating the Inaugural 2021 Pioneers in Energy Research

2021

Energy Fuels

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Celebrating the Inaugural 2021 Pioneers in Energy Research

2021

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“…Energy & Fuels has announced the “Pioneers in Energy Research” (PIERs) program that honors prominent scientists who have made pioneering contributions to the field of energy research . Professor Vivian Yam (The University of Hong Kong) has been selected as the 2021 PIER in the field of solar energy and conversion of light for her outstanding contribution to the area of light-emitting materials/devices . Below, Professor Yam answers our questions about her scientific journey and gives advice to fellow researchers.Professor Vivian Yam.…”

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“…1 Professor Vivian Yam (The University of Hong Kong) has been selected as the 2021 PIER in the field of solar energy and conversion of light for her outstanding contribution to the area of light-emitting materials/devices. 2 Below, Professor Yam answers our questions about her scientific journey and gives advice to fellow researchers.…”

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Q&A with Professor Vivian Yam

Shmakov

2021

Energy Fuels

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Analytical Review of Spiro‐OMeTAD Hole Transport Materials: Paths Toward Stable and Efficient Perovskite Solar Cells

Nakka

Cheng

Aberle

et al. 2022

Adv Energy and Sustain Res

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Organic-inorganic metal halide perovskite solar cells (PVSCs) have experienced rapid development in recent years, with its power conversion efficiency (PCE) improving from 3.8% in 2009 to an impressive 25.7% in 2021. [1] Thus, the metal halide perovskite is currently considered as a promising emerging photovoltaic (PV) material due to its excellent optoelectronic properties such as high optical absorption coefficient, long charge carrier lifetime, and low nonradiative recombination rates. [2] It is believed that the PVSCs can enter the specific PV market segments, such as building-integrated PV, in the coming years after upscaling the device fabrication and achieving decent device operational stability.The pioneer work of PVSCs was conducted by Miyasaka et al. using CH 3 NH 3 PbBr 3 and CH 3 NH 3 PbI 3 as photoactive materials in the liquid-based dye-sensitized solar cells (DSSCs). [3] The perovskite-based DSSCs achieved an efficiency of 3.8% but exhibited very poor stability because the metal halide perovskites are chemically reactive to the liquid electrolyte. Subsequently, the PCE of perovskite-based DSSCs was further improved to 6.5% using CH 3 NH 3 PbI 3 quantum dots (QDs) as the light absorber in 2011. Although the authors demonstrated enhanced efficiency by this way, the device performance degraded by 80% upon continuous irradiation for only 10 min, because the redox electrolyte dissolved the perovskite QDs due to its strong polar property. [4] To resolve this issue, Park et al. proposed a transition from DSSC to a solid-state PVSC by introducing a solid-state organic hole conductor, namely, 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9-9'spirobifluorene (spiro-OMeTAD). The solid-state hole conductor provides efficient hole extraction from the perovskite layer to the electrode, achieving a record PCE of 9.7%. [5] In addition, the stability of such solid-state PVSCs has improved to over 500 h under AM 1.5 G light illumination. This research has triggered rapid progress in the research activities on PVSCs and the related publications have increased exponentially since 2012. The yearly progress of PVSC is summarized in Figure 1 and the current certified record PCE of PVSCs is 25.7%, achieved by Ulsan National Institute of Science and Technology (UNIST) in 2021. [1]

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2021 Pioneers in Energy Research: Vivian Yam

Cited by 3 publications

References 52 publications

Celebrating the Inaugural 2021 Pioneers in Energy Research

Celebrating the Inaugural 2021 Pioneers in Energy Research

Q&A with Professor Vivian Yam

Analytical Review of Spiro‐OMeTAD Hole Transport Materials: Paths Toward Stable and Efficient Perovskite Solar Cells

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