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"luminance_cd_m2": "106121.73", "current_efficiency_cd_a": "10.86786", "luminous_efficacy_lm_w": "3.04843" } ] }, "unjoinedNote": "These rows are outside the chosen display domain or have no corresponding JVL row. They are preserved in raw CSV and are not assigned an inferred voltage/current.", "protocol": { "join": "Within each device, join the stored luminance values across Fig. 3d/e/f by exact Decimal equality. Sheet row index is not a join key. Require exactly one matching EQE and efficiency row.", "displayDomain": "Luminance >= 1 cd m^-2, positive voltage and current density, physically bounded source EQE (0–100%). Preserve all raw numerical rows in CSV, including low-signal artifacts.", "interpolation": "None. Source rows outside the available JVL sweep cannot acquire inferred voltage/current.", "roundingCheck": "For the source CE versus V*PE/pi identity, use half of the least stored decimal unit in each source CE/PE cell, treating V as the nominal sweep setting. These intervals diagnose arithmetic consistency only, not experimental uncertainty.", "rawPrecision": "The original XML numeric strings are retained in CSV; values are not rounded again.", "powerRoundingCheck": "PE versus JVL additionally propagates half-last-stored-unit rounding in J and L. One D point at8.4 V narrowly misses single-pass rounding; allowing one additional CE-intermediate rounding covers it. This is a numerical consistency bound, not experimental uncertainty or a claim about the original calculation pipeline." }, "definitions": { "electricalPowerDensityMwCm2": "voltageV * currentDensityMaCm2; mW cm^-2", "electricalPowerDensityWm2": "10 * voltageV * currentDensityMaCm2; W m^-2", "calculatedCurrentEfficiencyCdA": "luminanceCdM2 / (10 * currentDensityMaCm2); cd A^-1", "lambertianLuminousEfficacyLmW": "pi * luminanceCdM2 / (10 * currentDensityMaCm2 * voltageV); lm W^-1, conditional on Lambertian angular emission", "reportedLuminousEfficacyLmW": "The numerical Fig. 3f Power efficiency [lm/W] column, renamed to make its photometric dimension clear; preserved unchanged.", "nearestPoint": "Select the observed luminance minimizing absolute difference from the target; break ties toward lower luminance. The returned actual brightness need not equal the target." }, "limits": [ "Each selection is a real sweep point. The nearest point to a requested brightness is labelled with its actual measured luminance; it is not an interpolated operating point.", "Different devices at the same voltage, or at their separate nearest brightness points, are not necessarily at equal light output or equal exciton density.", "The lm/W column is photometric luminous efficacy, not a dimensionless electrical-to-optical energy efficiency. Colour and angular emission affect it.", "The pi conversion assumes Lambertian emission. Agreement with the stored power-efficiency column is an arithmetic check; it does not establish an angular calibration for these OLEDs.", "The matched series supports descriptive comparisons; a bipolar OLED JVL curve alone does not identify charge mobility, injection barriers, charge balance, annihilation rate, or the cause of efficiency loss.", "No pointwise experimental uncertainties are available in this workbook. Numerical residuals and source-cell rounding intervals are not measurement error bars.", "Device C has inconsistent source current-efficiency entries at 10.0 and 10.4 V. They remain unchanged and flagged; voltage, current density, luminance and source power-efficiency values are not corrected." ], "validation": { "pythonAssertions": 360, "sourceCePeInconsistencyCount": 2, "allSourcePeWithinJvlNumericRounding": true, "interpolatedPoints": 0, "fittedParameters": 0, "experimentalUncertaintyInferred": false, "powerRoundingNote": "One point (D, 8.4 V) misses the strict single-pass J/L/PE rounding interval by 7.8734e-8 lm/W; all points lie within a bound additionally allowing rounding of CE as an intermediate. This does not establish the original calculation procedure." } }