Pith Number

pith:2CQKZKJY

pith:2026:2CQKZKJYUIDGE4VPOLMLNMT5UO

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Exploring the Potential of Ternary Blending for Two and Three-Junction RAINBOW Solar Cells

Albert Harillo-Ba\~nos, Alejandro R. Go\~ni, Francesc Xavier Capella-Guardi\`a, Jaime Mart\'in, Jenny Nelson, Jolanda Simone M\"uller, Mariano Campoy-Quiles, Miquel Casademont-Vi\~nas, Muhammad Ahsan Saeed, Xabier Rodr\'iguez-Mart\'inez

Ternary blending in side-by-side RAINBOW solar cells raises efficiency from 12.9% in single-junction devices to 17.3% in three-junction devices.

arxiv:2605.07718 v2 · 2026-05-07 · cond-mat.mtrl-sci

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\pithnumber{2CQKZKJYUIDGE4VPOLMLNMT5UO}

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3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

The efficiency improves from 12.9% in single-junction devices to 15.9% in 2-junction devices (16.4% in simulations) and 17.3% in 3-junction devices (17.7% in simulations), confirming the viability of the RAINBOW architecture for scalable, high-efficiency OPVs.

C2weakest assumption

That ternary mixing tunes Voc and boosts PCE in the target spectral region when morphology and energy levels are well aligned, as illustrated for PTB7-Th:COTIC-4F:BTP-eC9 operating as the red subcell.

C3one line summary

Ternary blends in RAINBOW side-by-side organic solar cells raise efficiency from 12.9% single-junction to 15.9% for two junctions and 17.3% for three junctions using blade coating.

Receipt and verification

First computed	2026-05-20T00:05:46.588039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0a0aca938a2066272af72d8b6b27da3b0fc3b4aa84f0bb7cb4b56531f5f0b41

Aliases

arxiv: 2605.07718 · arxiv_version: 2605.07718v2 · doi: 10.48550/arxiv.2605.07718 · pith_short_12: 2CQKZKJYUIDG · pith_short_16: 2CQKZKJYUIDGE4VP · pith_short_8: 2CQKZKJY

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2CQKZKJYUIDGE4VPOLMLNMT5UO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d0a0aca938a2066272af72d8b6b27da3b0fc3b4aa84f0bb7cb4b56531f5f0b41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "489000710fbf6cee44c051828d3e7c8454b79e956292e9a06e887e908fd226f9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-05-07T15:47:27Z",
    "title_canon_sha256": "69349a554d45d394a11b0e998e3978cec4f4fefc63f09a02216fbf748544b31a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.07718",
    "kind": "arxiv",
    "version": 2
  }
}