P-Type Cu-Doped Zn<sub>0.3</sub>Cd<sub>0.7</sub>S/Graphene Photocathode for Efficient Water Splitting in a Photoelectrochemical Tandem Cell
Bibliographic record
Abstract
By doping Cu(I) ions in Zn 0.3 Cd 0.7 S, a novel p-type Cu doped Zn 0.3 Cd 0.7 S modified graphene (Zn 0.3 Cd 0.7 S (Cu)/GR) film photocathode was prepared. The as-prepared p-type Zn 0.3 Cd 0.7 S (Cu)/GR photocathode and an n-type WO 3 /graphene (WO 3 /GR) photoanode were used to assemble a photoelectrochemical tandem cell. Through examination of the optoelectronic and photoelectrochemical properties of Zn 0.3 Cd 0.7 S (Cu)/GR and WO 3 /GR photoelectrode, we evaluate the feasibility of the tandem cell for overall water splitting under UV–vis light irradiation. The optimal Cu doping in Zn 0.3 Cd 0.7 S photocathode concentration was found to be 6%. The rates of hydrogen and oxygen evolved from this tandem cell with the optimal electrodes were 65.6 and 12.3 μmol g –1 h –1 (80.5 and 15.1 μmol cm –2 h –1 ), respectively. This study suggests a promising method for constructing an efficient photoelectrochemical tandem device for overall water splitting.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".