Correcting for interference effects in the photoluminescence of Cu(In,Ga)Se2 thin films

被引：8

作者：

Wolter, Max Hilaire ^{[1
]}

Bissig, Benjamin ^{[2
]}

Reinhard, Patrick ^{[2
]}

Buecheler, Stephan ^{[2
]}

Jackson, Philip ^{[3
]}

Siebentritt, Susanne ^{[1
]}

机构：

[1] Univ Luxembourg, Lab Photovolta, Phys & Mat Sci Res Unit, L-4422 Belvaux, Luxembourg

[2] Empa Swiss Fed Labs Mat Sci & Technol, Lab Thin Films & Photovolta, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

[3] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-70565 Stuttgart, Germany

来源：

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 14 NO 6 | 2017年 / 14卷 / 06期

关键词：

Cu(In; Ga)Se-2; interference; photoluminescence; thin films; SOLAR-CELLS; EFFICIENCIES;

D O I：

10.1002/pssc.201600189

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) measurements are performed on highquality Cu(In,Ga)Se-2 (CIGS) thin films with the intention of investigating their electronic structure. Due to the nature of the CIGS absorbers, notably their smooth surface and a graded band gap, the measured PL spectra are distorted by interference effects, limiting thus the information that one can gain. Here we show that, by varying the entrance angle of the laser light and the detection angle of the emitted PL, we are able to correct for interference effects. As a result, we receive interference-free PL spectra that enable us to determine quantities such as band gap energies and quasi-Fermi level splittings (QFLS). Furthermore, we show that it is possible to measure the QFLS even without correcting for interference effects and we compare the QFLS to the open circuit voltage for a particular sample. (C) 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页数：4

共 50 条

[41] Effects of Sputtering Technique on Quaternary Sputtered Cu(In,Ga)Se2 Films
Myers, Jason D.
Frantz, Jesse A.
Bekele, Robel Y.
Nguyen, Vinh Q.
Sanghera, Jas S.
THIN FILMS FOR SOLAR AND ENERGY TECHNOLOGY VI, 2014, 9177
[42] Microstructural Characterization of Sulfurization Effects in Cu(In,Ga)Se2 Thin Film Solar Cells
Aboulfadl, Hisham
Keller, Jan
Larsen, Jes
Thuvander, Mattias
Riekehr, Lars
Edoff, Marika
Platzer-Bjorkman, Charlotte
MICROSCOPY AND MICROANALYSIS, 2019, 25 (02) : 532 - 538
[43] Rapid Fabrication of Cu(In,Ga)Se2 Thin Films by the Two-Step Selenization Process
Ishizuka, Shogo
Mansfield, Lorelle M.
DeHart, Clay
Scott, Marty
To, Bobby
Young, Matthew R.
Egaas, Brian
Noufi, Rommel
IEEE JOURNAL OF PHOTOVOLTAICS, 2013, 3 (01): : 476 - 482
[44] X-ray fluorescence investigation of the Ga distribution in Cu(In,Ga)Se2 thin films
Alberts, V
Klenk, M
Bucher, E
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2000, 64 (04) : 371 - 383
[45] Phase stability in Ag-Cu-In-Ga metal precursors for (Ag,Cu)(In,Ga)Se2 thin films
Soltanmohammad, Sina
Chen, Lei
McCandless, Brian E.
Shafarman, William N.
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2017, 172 : 347 - 352
[46] Excitonic luminescence of Cu(In,Ga)Se2
Rega, N
Siebentritt, S
Albert, J
Nishiwaki, S
Zajogin, A
Lux-Steiner, MC
Kniese, R
Romero, MJ
THIN SOLID FILMS, 2005, 480 : 286 - 290
[47] Effects of CdS buffer layers on photoluminescence properties of Cu(In,Ga)Se2 solar cells
Shirakata, Sho
Ohkubo, Katsuhiko
Ishii, Yasuyuki
Nakada, Tokio
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (6-7) : 988 - 992
[48] Effect of mechanical compression on Cu(In,Ga)Se2 films: micro-structural and photoluminescence analysis
Wei, Zhengfei
Senthilarasu, S.
Yakushev, Michael V.
Martin, Robert W.
Upadhyaya, Hari M.
RSC ADVANCES, 2014, 4 (10): : 5141 - 5147
[49] Solution based synthesis of Cu(In,Ga)Se2 microcrystals and thin films
Latha, M.
Aruna-Devi, R.
Velumani, S.
Murali, B.
Santoyo-Salazar, J.
de Moure-Flores, F.
RSC ADVANCES, 2019, 9 (60) : 35197 - 35208
[50] Influence of sodium on the growth of polycrystalline Cu(In,Ga)Se2 thin films
Braunger, D
Hariskos, D
Bilger, G
Rau, U
Schock, HW
THIN SOLID FILMS, 2000, 361 : 161 - 166

← 1 2 3 4 5 →