Byeong Guk Jeong^1*, Jun Hyuk Chang^1*, Donghyo Hahm^1*, Seunghyun Rhee¹, Myeongjin Park², Sooho Lee², Youngdu Kim¹, Doyoon Shin¹, Jeong Woo Park¹, Changhee Lee², Doh C. Lee³, Kyoungwon Park⁴, Euyheon Hwang¹, Wan Ki Bae^1*

1 SKKU Advanced Institute of Nanotechnology and Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea

2 Samsung Display Research Center, Samsung Display, Yongin 17113, Republic of Korea

3 Department of Chemical and Biomolecular Engineering, KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea

4 Display Research Center, Korea Electronics Technology Institute (KETI), Seongnam 13509, Republic of Korea

* Corresponding authors emails: jeong0101@skku.edu, luchio0325@gmail.com, hahm1993@gmail.com, wkbae@skku.edu

DOI10.24435/materialscloud:xk-xk [version v1]

Publication date: Aug 31, 2021

How to cite this record

Byeong Guk Jeong, Jun Hyuk Chang, Donghyo Hahm, Seunghyun Rhee, Myeongjin Park, Sooho Lee, Youngdu Kim, Doyoon Shin, Jeong Woo Park, Changhee Lee, Doh C. Lee, Kyoungwon Park, Euyheon Hwang, Wan Ki Bae, Interface polarization in heterovalent core/shell nanocrystals, Materials Cloud Archive 2021.144 (2021), doi: 10.24435/materialscloud:xk-xk.

Description

The potential profile and the energy level offset of core/shell heterostructured nanocrystals (h-NCs) determine the photophysical properties and the charge transport characteristics of h-NC solids. However, limited material choices for heavy metal-free III-V/II-VI h-NCs pose challenges in comprehensive control of the potential profile. Herein, we present an approach to such control by steering dipole densities at the interface of III-V/II-VI h-NCs. The controllable heterovalency at the interface is responsible for interfacial dipole densities that result in the vacuum-level shift, providing an additional knob for the control of optical and electrical characteristics of h-NCs. The synthesis of h-NCs with atomic precision allows us to correlate interfacial dipole moments with the nanocrystals’ photochemical stability and optoelectronic performance. The description was referred to the abstract of the original paper. All numerical data of the main figures in the articles are included in this data repository. In particular, each tab of the data file indicates each panel in the main figures. Please refer to the main research article.

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Experimentals.zip MD5md5:d623b6cc81eaf96212389d40a27a3b1a	1.4 MiB	Data files for XPS, UPS, spectroscopy and device performance

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Keywords

Experimental Heterostructured nanocrystal Interface polarization