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Junkai Ren

Umeå University

Samhallsvetarhuset, Plan 2

Umea University

Umeå, SE 901 87

Sweden

SCHOLARLY PAPERS

3

DOWNLOADS

71

TOTAL CITATIONS

0

Scholarly Papers (3)

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1.

Debunking Top-Down Borophene: A Multimodal Reassessment of Boron Sonication and Milling

Number of pages: 23 Posted: 11 Apr 2026
Usama Anwar, Junkai Ren, L. Caggiu, Sebastiano Garroni, Luca Malfatti, Nicola Pinna and Plinio Innocenzi
affiliation not provided to SSRN, Umeå University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Humboldt University of Berlin and Università degli Studi di Sassari
Downloads 42 (1,209,354)

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Boron, Borophene, Boron nanostructures, Nanoparticles, Fluorescence

2.

Tunable Multicolor Luminescent Carbon Dots from Birch Leaves via a Sequential Segregation Approach

Number of pages: 25 Posted: 12 Sep 2025
Henry Opoku, Junkai Ren, Peijuan Zhang, Xin Zhou, Xiangquan Mi, Sikha Sanjay Menon, Shi Tang, Dongfeng Dang, Leif J. Jönsson, Ludvig Edman and Jia Wang
Umeå University, Umeå University, affiliation not provided to SSRN, Umeå University, Shihezi University, Umeå University, Umeå University, Xi'an Jiaotong University (XJTU) - Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Umeå University, Umeå University and Umeå University
Downloads 22 (1,424,331)

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Carbon dot, biomass, Leaf, Tunable emission, Sequential segregation approach

3.

Confinement activated fluorescence enhancement of dyes via polymer mediated interfacial regulation in cellulose nanocrystal films

Number of pages: 35 Posted: 15 May 2026
Decai Xiong, Peijun Zhang, Hongchen He, Yao Lu, Yixiao Dong, Jiaolong Liu, Deting Xu, Yanyang Qin, Junkai Ren, Bing Wei and Dan Qu
Xidian University, Xidian University, Xidian University, Xidian University, Xidian University, Xidian University, Xidian University, Xidian University, Umeå University, Xidian University and Xidian University
Downloads 7 (1,566,597)

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Cellulose nanocrystals, polymer mediated regulation, fluorescence enhancement, interfacial interactions, structure-property relationships