Title

Study of Thermal Annealing Process Effect on PbS Colloidal Quantum Dot Solar Cells

Alternative Title

열처리 공정 개질이 황화납 콜로이드 양자점 표면 및 태양전지에 미치는 영향 연구

DGIST Authors

Eonji Lee ; Jongmin Choi ; Dae-Hyun Nam

Advisor

최종민

Co-Advisor(s)

Dae-Hyun Nam

Issued Date

2023

Awarded Date

2023-02-01

Citation

Eonji Lee. (2023). Study of Thermal Annealing Process Effect on PbS Colloidal Quantum Dot Solar Cells. doi: 10.22677/THESIS.200000656618

Type

Thesis

Description

Solar cell, PbS colloidal quantum dot, Flash lamp annealing, Hydroxylation, Oxidation

Table Of Contents

Ⅰ. Introduction 1
1.1 Solar Cells for Renewable Energy Harvesting 1
1.2 Emergence of the Colloidal Quantum Dot Solar Cells 1
1.3 Lead Sulfide Colloidal Quantum Dot Solar Cells 2
1.4 Limited Photovoltaic Performance Derived from Incomplete Surface Chemistry of the PbS QD 2
1.5 PbS QD Film Annealing Process 3
1.6 Recent Research Trend of Short-Time Annealing on the PbS QD Film 3
1.7 New Approach Method using FLA in the PbS CQDSCs 4
Ⅱ. Experimental 5
2.1 Synthesis of OA-capped PbS Colloidal Quantum Dot 5
2.2 Ligand Exchange Step for CQD Ink 5
2.3 CQD Solar Cell Device Fabrication 6
2.4 Device Characterization of PbS CQD 7
2.5 Solar Cell Measurement 7
Ⅲ. Results and discussion 8
3.1 The Formation of Pb-OH and Pb-O Species on the PbS QD Films 8
3.2 The HA and FLA Annealing Process and Optimization of Annealing Conditions 8
3.2.1 Process of the HA and FLA Treatments 8
3.2.2 Optimization of the Energy Density through the PCE and Film Contraction 11
3.3 The Analysis of the Effect of the Hydroxylation and Oxidation on the PbS QD Sur-face 14
3.4 Electrical Properties of the PbS QD Films 16
3.5 Solar Cell Structure and Performance 20
Ⅳ. Conclusion 26
Ⅴ. Reference 27
VI. 요약문 30

URI

http://hdl.handle.net/20.500.11750/45736
http://dgist.dcollection.net/common/orgView/200000656618

DOI

10.22677/THESIS.200000656618

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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