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Premjit Limpamanoch. Cesium doped formamidinium lead iodide for stability improvement of perovskite solar cells. Master's Degree(Nanomaterials Science). Kasetsart University. Office of the University Library. : Kasetsart University, 2019.
Cesium doped formamidinium lead iodide for stability improvement of perovskite solar cells
Name: Premjit Limpamanoch
Classification :.LCCS: TK2963.P47
LCSH:
Perovskite solar cells
LCSH:
Perovskite materials
LCSH:
Cesium iodide
Abstract:
In this thesis work, cesium-doped formamidinium lead iodide (FA1-xCsxPbI3) perovskite films at various Cs concentrations have been prepared on FTO coated glass substrates by a spin coating method. The Cs doping concentrations were varied in a range of 0-25 vol%. Changes in structural, optical and morphological properties upon Cs inclusion were systematically characterized. The XRD results revealed that at doping content of 16 vol%, the films showed pure phase of α-FAPbI3 with high crystallinity and large crystallite size. The surface morphologies of the films were found to be significantly dependent on the Cs additions. The grain size of the film gradually increased with increasing Cs concentration up to 16 vol% whose the size was found to be 2608 nm. The optical band gap was tunable in a range of 1.52 1.58 eV upon Cs concentrations which at doping level of 16 vol%, the films exhibited an abrupt increase in the band gap towards the value of 1.56 eV. The effects of Cs addition on UV light stability were also examined. The stability of structural and morphological properties was observed upon the partial incorporation of Cs. Changes in mechanisms of photo-generated charge separation and transportation upon Cs addition and upon UV illumination were investigated by modulated surface photovoltage (SPV) spectroscopy. The measured SPV signals were found to strongly depend on the UV exposure times. The formation of the -CsPbI3 phase found in the FAxCs1-xPbI3 perovskite under UV illumination is attributed to the stabilizing FAPbI3/CsPbI3 interface, which efficiently inhibit the phase segregation. This provides a stable condition for modulated charge separation under UV exposure.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Thidarat Supasai
Role:
Thesis Advisor
Created:
2019
Modified:
2025-07-02
Issued:
2025-07-02
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2562/premjit-lim-all.pdf
CallNumber:
TK2963.P47 .P73
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Nanomaterials Science
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.027595 วินาที
Premjit Limpamanoch
| Title | Contributor | Type |
|---|---|---|
| Cesium doped formamidinium lead iodide for stability improvement of perovskite solar cells
มหาวิทยาลัยเกษตรศาสตร์ Premjit Limpamanoch | Thidarat Supasai | วิทยานิพนธ์/Thesis |
Thidarat Supasai
| Title | Creator | Type and Date Create |
|---|---|---|
| Cesium doped formamidinium lead iodide for stability improvement of perovskite solar cells
มหาวิทยาลัยเกษตรศาสตร์ Thidarat Supasai | Premjit Limpamanoch | วิทยานิพนธ์/Thesis |
| Preparation and characterization of CH3 NH3 PbI3 fimls for perovskite solar cells by a sequentially chemical sprayed nebulous deposition method
มหาวิทยาลัยเกษตรศาสตร์ Thidarat Supasai | Nakorn Henjongchom | วิทยานิพนธ์/Thesis |