Title

A Study on Interdot Perovskite Integration in PbS Quantum Dot Photovoltaics

Alternative Title

인터닷 페로브스카이트를 적용한 황화납 양자점 태양전지에 관한 연구

DGIST Authors

Hyeon Soo Ma ; Jongmin Choi ; Seo-Jin Ko

Advisor

최종민

Co-Advisor(s)

Seo-Jin Ko

Issued Date

2026

Awarded Date

2026-02-01

Type

Thesis

Description

PbS colloidal quantum dots, Photovoltaics, Perovskite, Hole Transport layer, Necking suppression

Table Of Contents

Ⅰ. Introduction 1

II. Experimental 4
2.1 Synthesis of OA-capped PbS Colloidal Quantum Dot 4
2.2 Ligand Exchange Step for CQD Ink 4
2.3 Perovskite Precursor Solution Preparation 5
2.4 CQD Solar Cell Device Fabrication 5
2.5 Device Characterization of PbS CQD 5
2.6 Solar Cell Measurement 6

III. Results and discussion 7
3.1 Structural and Facet-Dependent Characteristics of PbS Quantum Dots 7
3.2 Perovskite-Bridged PbS–EDT Hole Transport Layer 8
3.2.1 Process of the Perovskite bridging 8
3.2.2 Optimization of FAPbI3 Precursor Concentration 10
3.2.3 Analysis of Perovskite Formation between PbS–EDT Quantum Dots 11
3.2.4 Electrical properties of PbS-Perovskite Films 19
3.2.5 Solar Cell Structure and Performance 23
3.2.6 Thermal Stability of PbS–EDT and EDT–Perovskite Films 25


IV. Conclusion 28
V. Reference 30
VI. 요약문 34

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59682
http://dgist.dcollection.net/common/orgView/200000950685

DOI

10.22677/THESIS.200000950685

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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