Spectroscopy — A Copper Coordination Polymer with Matching Energy Level for Modifying Hole Transport Layers to Improve the Performance of Perovskite Solar Cells

7 measurement groups · 21 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Cu-bix/LiTFSI mixture · Powder

FTIR spectra of Cu-bix, LiTFSI and mixture to probe Cu-bix/LiTFSI interaction.

Geometry: KBr pellet
Context: Cu-bix/LiTFSI model mixture
Measurement source: p004 / journal page 2766 · Results and Discussion · Figure 3d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-bix C-N stretching vibration	1280.9 cm-1	1280.9 cm-1	—	Text Exact Reported	p004 / journal page 2766 · Results and Discussion · Figure 3d
Cu-bix/LiTFSI mixture C-N shifted peak	1256.3 cm-1	1256.3 cm-1	—	Text Exact Reported	p004 / journal page 2766 · Results and Discussion · Figure 3d

as-prepared Cu-bix pale-yellow crystals · Single Crystal

Cu-bix excited at 340 nm; optical photograph under 365 nm UV.

Context: pristine Cu-bix
Measurement source: p002-p003 / journal pages 2764-2765 · Results and Discussion · Figure 2c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PL excitation wavelength	340 nm	340 nm	—	Text Exact Reported	p002 / journal page 2764 · Results and Discussion · Figure 2c
PL maximum emission peakMarked as a best value within this paper	625 nm	625 nm	—	Text Exact Reported	p002 / journal page 2764 · Results and Discussion · Figure 2c
PL emission range	500-750 nm	—	range	Text Range	p002 / journal page 2764 · Results and Discussion · Figure 2c

as-prepared Cu-bix pale-yellow crystals · Single Crystal

Solid-sample UV/Vis absorption spectra obtained with BaSO4 baseline correction.

Context: pristine Cu-bix
Measurement source: p002 / journal page 2764 · Results and Discussion · Figure 2b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
optical band gapMarked as a best value within this paper	2.08 eV	2.08 eV	—	Text Exact Reported	p002 / journal page 2764 · Results and Discussion · Figure 2b

glass/perovskite/HTL model films · Thin Film

Glass/perovskite, glass/perovskite/HTL and glass/perovskite/Cu-bix-doped HTL films; TRPL used 650 nm low-pass filter.

Geometry: glass/perovskite/HTL model stacks
Context: reference HTL and Cu-bix-doped HTL on perovskite
Measurement source: p007 / journal page 2769 · Results and Discussion · Figure 6a,b; Table S1 referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
perovskite steady-state PL peak	765 nm	765 nm	—	Text Exact Reported	p007 / journal page 2769 · Results and Discussion · Figure 6a
PL quenching by HTLs	significant PL reduction for perovskite/HTL and perovskite/Cu-bix-doped HTL	—	—	Text Qualitative	p007 / journal page 2769 · Results and Discussion · Figure 6a,b
TRPL tau1, Cu-bix-doped HTLMarked as a best value within this paper	0.74 ns	0.74 ns	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau1 ratio, Cu-bix-doped HTL	96.03 %	96.03 %	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau2, Cu-bix-doped HTLMarked as a best value within this paper	6.71 ns	6.71 ns	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau2 ratio, Cu-bix-doped HTL	3.97 %	3.97 %	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau1, pristine HTL	0.77 ns	0.77 ns	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau1 ratio, pristine HTL	94.17 %	94.17 %	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau2, pristine HTL	7.08 ns	7.08 ns	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1
TRPL tau2 ratio, pristine HTL	5.83 %	5.83 %	—	SI Table Exact Reported	p002 / SI page 1 · Supporting Information · Table S1

Cu-bix-doped HTL concentration series · Thin Film

Spiro-OMeTAD with Cu-bix, LiTFSI, or both; solution colour changes used to infer charge transfer/oxidation.

Geometry: solution spectra
Context: Cu-bix/LiTFSI co-doped Spiro-OMeTAD compared with controls
Measurement source: p003-p004 / journal pages 2765-2766 · Results and Discussion · Figure 3a; Figure S2a referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
singly oxidised Spiro-OMeTAD absorption peak	525 nm	525 nm	—	Text Exact Reported	p003 / journal page 2765 · Results and Discussion · Figure 3a

optimised Cu-bix-doped HTL · Thin Film

XPS C 1s and N 1s core levels for Spiro-OMeTAD films with different additives; C 1s calibrated using pristine Spiro-OMeTAD at 285.2 eV.

Geometry: thin-film XPS
Context: Cu-bix/LiTFSI co-doped HTL compared with pristine Spiro-OMeTAD and single-additive controls
Measurement source: p003-p004 / journal pages 2765-2766 · Results and Discussion · Figure 3b,c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C 1s peak, Cu-bix/LiTFSI co-doped Spiro-OMeTAD	284.6 eV	284.6 eV	—	Text Exact Reported	p003 / journal page 2765 · Results and Discussion · Figure 3b
C 1s peak, pristine Spiro-OMeTAD	285.2 eV	285.2 eV	—	Text Exact Reported	p003 / journal page 2765 · Results and Discussion · Figure 3b

optimised Cu-bix-doped PSC · Electrode

HTL reflectance, device absorption and IPCE compared for PSCs with and without Cu-bix doping.

Geometry: HTL films and PSC devices
Context: Cu-bix-doped HTL/PSC compared with pristine HTL/PSC
Measurement source: p007 / SI page 6 · Supporting Information · Figures S10-S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
IPCE spectral change with Cu-bix doping	long-wavelength IPCE improved; ultraviolet region slightly decreased	—	—	Text Qualitative	p006 / journal page 2768 · Results and Discussion · Figure S11 referenced
long-wavelength reflectance of Cu-bix-doped HTL	Cu-bix-doped HTL has relatively higher reflectance in the long-wavelength region	—	—	Text Qualitative	p006 / journal page 2768 · Results and Discussion · Figure S10a referenced