User profiles for Kai Zhu

Kai Zhu

National Renewable Energy Laboratory
Verified email at nrel.gov
Cited by 55041

Carrier lifetimes of> 1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells

…, MC Beard, SE Shaheen, JJ Berry, Y Yan, K Zhu - Science, 2019 - science.org
All-perovskite–based polycrystalline thin-film tandem solar cells have the potential to deliver
efficiencies of >30%. However, the performance of all-perovskite–based tandem devices …

Compositional texture engineering for highly stable wide-bandgap perovskite solar cells

…, EL Warren, MC Beard, JJ Berry, Y Yan, K Zhu - Science, 2022 - science.org
The development of highly stable and efficient wide-bandgap (WBG) perovskite solar cells (PSCs)
based on bromine-iodine (Br–I) mixed-halide perovskite (with Br greater than 20%) is …

Surface reaction for efficient and stable inverted perovskite solar cells

…, DP Fenning, JJ Berry, BW Larson, Y Yan, K Zhu - Nature, 2022 - nature.com
Perovskite solar cells (PSCs) with an inverted structure (often referred to as the p–i–n
architecture) are attractive for future commercialization owing to their easily scalable fabrication, …

Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells

…, YL Loo, JJ Berry, MC Beard, Y Yan, BW Larson, K Zhu - Science, 2022 - science.org
The performance of three-dimensional (3D) organic-inorganic halide perovskite solar cells (PSCs)
can be enhanced through surface treatment with 2D layered perovskites that have …

Organic–inorganic hybrid lead halide perovskites for optoelectronic and electronic applications

Y Zhao, K Zhu - Chemical Society Reviews, 2016 - pubs.rsc.org
Organic and inorganic hybrid perovskites (eg, CH3NH3PbI3), with advantages of facile
processing, tunable bandgaps, and superior charge-transfer properties, have emerged as a new …

Consensus statement for stability assessment and reporting for perovskite photovoltaics based on ISOS procedures

…, T Watson, H Xie, R Yıldırım, SM Zakeeruddin, K Zhu… - Nature Energy, 2020 - nature.com
Improving the long-term stability of perovskite solar cells is critical to the deployment of this
technology. Despite the great emphasis laid on stability-related investigations, publications …

Scalable fabrication and coating methods for perovskite solar cells and solar modules

NG Park, K Zhu - Nature Reviews Materials, 2020 - nature.com
Since the report in 2012 of a solid-state perovskite solar cell (PSC) with a power-conversion
efficiency (PCE) of 9.7% and a stability of 500 h, intensive efforts have been made to …

Prospects for metal halide perovskite-based tandem solar cells

R Wang, T Huang, J Xue, J Tong, K Zhu, Y Yang - Nature Photonics, 2021 - nature.com
Over the past decade, metal halide perovskite photovoltaics have been a major focus of
research, with single-junction perovskite solar cells evolving from an initial power conversion …

Long-range hot-carrier transport in hybrid perovskites visualized by ultrafast microscopy

Z Guo, Y Wan, M Yang, J Snaider, K Zhu, L Huang - Science, 2017 - science.org
The Shockley-Queisser limit for solar cell efficiency can be overcome if hot carriers can be
harvested before they thermalize. Recently, carrier cooling time up to 100 picoseconds was …

Towards stable and commercially available perovskite solar cells

NG Park, M Grätzel, T Miyasaka, K Zhu, K Emery - Nature Energy, 2016 - nature.com
Solar cells employing a halide perovskite with an organic cation now show power conversion
efficiency of up to 22%. However, these cells are facing issues towards commercialization, …