Wallace C. H. Choy

20.8k total citations · 5 hit papers
347 papers, 18.2k citations indexed

About

Wallace C. H. Choy is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Polymers and Plastics. According to data from OpenAlex, Wallace C. H. Choy has authored 347 papers receiving a total of 18.2k indexed citations (citations by other indexed papers that have themselves been cited), including 304 papers in Electrical and Electronic Engineering, 148 papers in Materials Chemistry and 133 papers in Polymers and Plastics. Recurrent topics in Wallace C. H. Choy's work include Perovskite Materials and Applications (153 papers), Conducting polymers and applications (132 papers) and Organic Electronics and Photovoltaics (119 papers). Wallace C. H. Choy is often cited by papers focused on Perovskite Materials and Applications (153 papers), Conducting polymers and applications (132 papers) and Organic Electronics and Photovoltaics (119 papers). Wallace C. H. Choy collaborates with scholars based in Hong Kong, China and United States. Wallace C. H. Choy's co-authors include Wei E. I. Sha, Fengxian Xie, Hong Zhang, Di Zhang, Xingang Ren, Xinchen Li, Jian Mao, Kam Sing Wong, Xuanhua Li and Dan Ouyang and has published in prestigious journals such as Advanced Materials, Angewandte Chemie International Edition and Nature Communications.

In The Last Decade

Wallace C. H. Choy

339 papers receiving 17.9k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Enhancing the Brightness of Cesium Lead Halide Perovskite Nanocrystal Based Green Light-Emitting Devices through the Interface Engineering with Perfluorinated Ionomer

2016 675 citations Hong Lin, Wallace C. H. Choy et al. profile →
Dual Plasmonic Nanostructures for High Performance Inverted Organic Solar Cells

2012 626 citations Wallace C. H. Choy, Wei E. I. Sha et al. Advanced Materials profile →
Photoluminescence and Electron Paramagnetic Resonance of ZnO Tetrapod Structures

2004 570 citations Wallace C. H. Choy, Kok‐Wai Cheah et al. profile →
Pinhole-Free and Surface-Nanostructured NiO_x Film by Room-Temperature Solution Process for High-Performance Flexible Perovskite Solar Cells with Good Stability and Reproducibility

2015 498 citations Hong Zhang, Alex K.‐Y. Jen et al. profile →
Buried Interface Modification in Perovskite Solar Cells: A Materials Perspective

2022 198 citations Zhiwen Gao, Yong Wang et al. Advanced Energy Materials profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Wallace C. H. Choy Hong Kong	69	15.6k	9.3k	7.0k	2.7k	1.6k	347	18.2k
Aram Amassian Saudi Arabia	82	21.4k 1.4×	13.0k 1.4×	9.9k 1.4×	2.3k 0.9×	1.4k 0.8×	242	24.1k
Mats Fahlman Sweden	71	14.2k 0.9×	7.1k 0.8×	10.8k 1.5×	4.1k 1.5×	1.9k 1.2×	277	19.3k
Dong‐Yu Kim South Korea	67	13.2k 0.8×	5.7k 0.6×	8.0k 1.1×	3.4k 1.3×	1.5k 0.9×	301	16.6k
Hyunjung Shin South Korea	58	10.0k 0.6×	7.6k 0.8×	3.5k 0.5×	1.8k 0.6×	1.1k 0.7×	240	13.1k
Barry P. Rand United States	64	16.0k 1.0×	7.7k 0.8×	7.2k 1.0×	1.7k 0.6×	1.0k 0.6×	220	17.8k
Yeng Ming Lam Singapore	48	11.7k 0.8×	8.7k 0.9×	4.7k 0.7×	984 0.4×	1.2k 0.8×	188	14.3k
Guichuan Xing Macao	70	23.3k 1.5×	18.3k 2.0×	6.8k 1.0×	1.8k 0.7×	2.0k 1.2×	355	27.1k
Letian Dou United States	57	22.3k 1.4×	11.7k 1.3×	11.1k 1.6×	1.9k 0.7×	1.5k 1.0×	157	24.3k
Luis K. Ono Japan	76	19.6k 1.3×	13.7k 1.5×	7.0k 1.0×	777 0.3×	1.7k 1.1×	185	22.3k
Yizheng Jin China	55	10.5k 0.7×	10.7k 1.2×	2.6k 0.4×	1.3k 0.5×	1.4k 0.8×	154	13.8k

Countries citing papers authored by Wallace C. H. Choy

Since Specialization

Citations

This map shows the geographic impact of Wallace C. H. Choy's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Wallace C. H. Choy with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Wallace C. H. Choy more than expected).

Fields of papers citing papers by Wallace C. H. Choy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Wallace C. H. Choy. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Wallace C. H. Choy. The network helps show where Wallace C. H. Choy may publish in the future.

Co-authorship network of co-authors of Wallace C. H. Choy

This figure shows the co-authorship network connecting the top 25 collaborators of Wallace C. H. Choy. A scholar is included among the top collaborators of Wallace C. H. Choy based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Wallace C. H. Choy. Wallace C. H. Choy is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Liu, Yu, Byung Ku Jung, Yang Ni, et al.. (2025). Ligand-exchange-assisted printing of colloidal nanocrystals to enable all-printed sub-micron optoelectronics. Nature Communications. 16(1). 9173–9173. 2 indexed citations

Yang, Yi, Mengqi Cui, Zhengyan Jiang, et al.. (2025). High efficiency of solution-processed inverted organic solar cells enabled by an aluminum oxide conjunction structure. Energy & Environmental Science. 18(4). 1963–1971. 2 indexed citations

Zhou, Biao, Mingliang Li, Liren Zhang, et al.. (2025). Soft conjugation extension strategy of self-assembled molecules for achieving efficient and mechanically stable flexible perovskite solar cells. Energy & Environmental Science. 18(19). 8803–8814. 2 indexed citations

Lyu, Benzheng, Dongyu Li, Qi Xiong, et al.. (2025). Tribenzyl Organic Cations Carried Multidentate X‐Type Lewis Soft Base for High‐Performance Foldable Perovskite Light‐Emitting Diodes. Advanced Materials. 37(25). e2415211–e2415211.

Xu, Chunyu, Yifan Chen, Zijian Zhao, et al.. (2025). Semi-transparent photovoltaics. Energy & Environmental Science. 18(5). 2095–2135. 8 indexed citations

Xue, Bin, Bin Zhang, Chaojie Hao, et al.. (2025). Surface integration modulated low-temperature synthesis for high-quality halide perovskite single crystals. Chemical Engineering Journal. 514. 163060–163060.

Gao, Zhiwen, Deng Wang, Jun Fang, et al.. (2025). Eutectic molecule ligand stabilizes photoactive black phase perovskite. Nature Photonics. 19(3). 258–263. 14 indexed citations

Wang, Zi Shuai, Xingang Ren, Hong Zhang, et al.. (2024). Device deficiency and degradation diagnosis model of Perovskite solar cells through hysteresis analysis. Nature Communications. 15(1). 9647–9647. 23 indexed citations

Lyu, Benzheng, Dongyu Li, Qiang Wang, et al.. (2024). Pattern‐Matched Polymer Ligands Toward Near‐Perfect Synergistic Passivation for High‐Performance and Stable Br/Cl Mixed Perovskite Light‐Emitting Diodes. Angewandte Chemie International Edition. 63(35). e202408726–e202408726. 12 indexed citations

10.

Liu, Tiantian, Sen Wang, Yinguang Shi, et al.. (2023). Machine‐Learning Accelerating the Development of Perovskite Photovoltaics. Solar RRL. 7(23). 5 indexed citations

11.

Ahmad, Sajjad, Jinwook Kim, Xinjun He, et al.. (2023). High‐Quality Pure‐Phase MA‐Free Formamdinium Dion‐Jacobson 2D Perovskites for Stable Unencapsulated Photovoltaics. Advanced Energy Materials. 14(2). 15 indexed citations

12.

Mei, Guanding, Xiangtian Xiao, Sajjad Ahmad, et al.. (2023). Microcavity Design Upping Light Extraction Efficiency over 50% in High‐Index Perovskite Light‐Emitting Diodes. Advanced Optical Materials. 11(22). 9 indexed citations

13.

Wang, Zi Shuai, Firouzeh Ebadi, Brian Carlsen, Wallace C. H. Choy, & Wolfgang Tress. (2020). Transient Photovoltage Measurements on Perovskite Solar Cells with Varied Defect Concentrations and Inhomogeneous Recombination Rates. Small Methods. 4(9). 60 indexed citations

14.

Ren, Xingang, Zi Shuai Wang, & Wallace C. H. Choy. (2019). Device Physics of the Carrier Transporting Layer in Planar Perovskite Solar Cells. Advanced Optical Materials. 7(20). 36 indexed citations

15.

Chen, Hongye, Min Li, Xiaoyan Wen, et al.. (2019). Enhanced Silver Nanowire Composite Window Electrode Protected by Large Size Graphene Oxide Sheets for Perovskite Solar Cells. Nanomaterials. 9(2). 193–193. 24 indexed citations

16.

Li, Yunlong, Weihai Sun, Feidan Gu, et al.. (2019). Soldering Grain Boundaries Yields Inverted Perovskite Solar Cells with Enhanced Open‐Circuit Voltages. Advanced Materials Interfaces. 6(14). 18 indexed citations

17.

Yavari, Mozhgan, Firouzeh Ebadi, Simone Meloni, et al.. (2019). How far does the defect tolerance of lead-halide perovskites range? The example of Bi impurities introducing efficient recombination centers. Journal of Materials Chemistry A. 7(41). 23838–23853. 66 indexed citations

18.

Zhao, Yong, Hong Zhang, Xingang Ren, et al.. (2018). Thick TiO₂-Based Top Electron Transport Layer on Perovskite for Highly Efficient and Stable Solar Cells. ACS Energy Letters. 3(12). 2891–2898. 85 indexed citations

19.

Sha, Wei E. I., et al.. (2015). A General Design Rule to Manipulate Photocarrier Transport Path in Solar Cells and Its Realization by the Plasmonic-Electrical Effect. Scientific Reports. 5(1). 8525–8525. 42 indexed citations

20.

Sha, Wei E. I., et al.. (2013). Unidirectional and wavelength-selective photonic sphere-array nanoantennas. The HKU Scholars Hub (University of Hong Kong). 35 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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