Low-cost catalysts and tandem solar cells expand clean energy options

Overview

Two breakthroughs in energy materials are making cleaner power more practical. Researchers at Yale and the University of Missouri have demonstrated that manganese—an abundant, inexpensive metal—can convert carbon dioxide into formate, a hydrogen storage compound, outperforming most precious-metal catalysts that cost thousands of times more. Meanwhile, perovskite-silicon tandem solar cells have crossed 34% efficiency and begun commercial shipments, breaking the theoretical ceiling that limited standard silicon panels for decades.

These advances address different problems with a common theme: replacing expensive, scarce materials with cheaper, more available alternatives. Formate produced from atmospheric CO₂ could supply hydrogen for fuel cells without fossil fuels. Tandem cells that layer perovskite atop silicon capture more of the solar spectrum, generating roughly 20% more power per panel. Oxford PV shipped its first commercial modules in 2024; Hanwha QCells plans mass production in 2027.

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Key Indicators

34.85%

Tandem Cell Efficiency Record

LONGi's perovskite-silicon cell efficiency, certified by NREL in 2025—surpassing the 33% Shockley-Queisser limit for single-junction silicon

$2,140

Manganese Price per Ton

Manganese costs roughly $2,140 per metric ton compared to platinum at over $30,000 per ounce

6%→34%

Solar Efficiency Since 1954

Bell Labs' first practical silicon cell converted 6% of sunlight to electricity; tandem cells now capture nearly six times more

$6.45B

CO₂ Utilization Market (2026)

The carbon dioxide utilization market is projected to reach $6.45 billion in 2026, growing at 13.5% annually

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People Involved

Nilay Hazari

Senior author on manganese catalyst research

Justin Wedal

Lead author on manganese catalyst study

Wesley Bernskoetter

Senior co-author on manganese catalyst research

Organizations Involved

Yale University

Research University

Lead institution for manganese catalyst research

Yale's chemistry department led the manganese catalyst research in collaboration with the University of Missouri.

LONGi Green Energy Technology

Solar Technology Manufacturer

Holds world record for perovskite-silicon tandem efficiency

Chinese solar manufacturer that achieved the certified 34.85% efficiency record for perovskite-silicon tandem cells.

Oxford PV

Solar Technology Company

First to commercially ship perovskite-silicon tandem modules

UK-based company that shipped the first commercial perovskite-silicon tandem solar modules in September 2024.

Hanwha QCells

Solar Technology Manufacturer

Planning commercial perovskite-silicon production for 2026-2027

Major solar manufacturer that achieved 28.6% tandem cell efficiency and passed certification for commercial production.

Timeline

Combined Advances Signal Broader Energy Materials Shift
Analysis

Coverage highlights how both the manganese catalyst and tandem solar cell breakthroughs represent a pattern of replacing expensive, scarce materials with abundant alternatives.
February 9th, 2026
Yale-Missouri Team Publishes Manganese Catalyst Breakthrough
Scientific Milestone

Researchers publish findings in Chem showing that manganese catalysts can convert CO₂ to formate, outperforming most precious-metal alternatives at a fraction of the cost.
January 6th, 2026
LONGi Sets Current Efficiency Record at 34.85%
Scientific Milestone

LONGi achieves 34.85% efficiency in a perovskite-silicon tandem cell, certified by the U.S. National Renewable Energy Laboratory.
April 1st, 2025
Oxford PV Ships First Commercial Perovskite Modules
Commercial Milestone

Oxford PV delivers the first commercial shipment of perovskite-silicon tandem modules—approximately 100 kilowatts—to a utility-scale customer in the United States.
September 5th, 2024
LONGi Raises Record to 34.6%
Scientific Milestone

LONGi continues pushing efficiency boundaries with a new NREL-certified record of 34.6% for its tandem solar cells.
June 1st, 2024
LONGi Breaks 33% Barrier
Scientific Milestone

LONGi achieves 33.9% efficiency in perovskite-silicon tandem cells, the first time a silicon-based cell has exceeded the Shockley-Queisser limit.
November 1st, 2023
Helmholtz-Zentrum Berlin Achieves 32.5% Efficiency
Scientific Milestone

German researchers push tandem cell efficiency past 32%, definitively surpassing the Shockley-Queisser limit for conventional silicon.
January 1st, 2022
Oxford PV Reaches 29.5% Tandem Efficiency
Scientific Milestone

Oxford PV sets a world record for perovskite-silicon tandem cells at 29.5% efficiency, approaching the single-junction silicon limit.
December 1st, 2020
First Perovskite-Silicon Tandem Cells Demonstrated
Scientific Milestone

Helmholtz-Zentrum Berlin researchers demonstrate the first perovskite-silicon tandem solar cells with efficiency above 18%, opening a pathway beyond the Shockley-Queisser limit.
January 1st, 2015
Shockley-Queisser Limit Calculated
Scientific Milestone

William Shockley and Hans-Joachim Queisser calculate the theoretical maximum efficiency for single-junction solar cells at approximately 33%, establishing a ceiling that would constrain silicon technology for decades.
January 1st, 1961
Bell Labs Demonstrates First Practical Silicon Solar Cell
Scientific Milestone

Scientists Calvin Fuller, Daryl Chapin, and Gerald Pearson at Bell Laboratories create a silicon solar cell with 6% efficiency—the first practical photovoltaic device.
April 25th, 1954

Scenarios

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Predictions leaderboard

Tandem Cells Capture 20% of Solar Market by 2030

With Oxford PV shipping commercial modules and QCells targeting mass production in 2027, perovskite-silicon tandems could take significant market share if manufacturing scales successfully. The 20% power advantage per panel justifies premium pricing. Key trigger: demonstration of 25-year durability comparable to standard silicon, which currently lasts 25-30 years while perovskites degrade faster.

Discussed by: Solar industry analysts at BloombergNEF and PV Magazine; company roadmaps from LONGi, Oxford PV, and Hanwha QCells

Consensus —

Manganese Catalysts Enable Commercial Formate Fuel Systems

If the manganese catalyst performance translates from laboratory to industrial scale, formate could become a practical hydrogen carrier. Formate's volumetric energy density exceeds 70 MPa hydrogen tanks, and producing it from atmospheric CO₂ would create a carbon-neutral fuel cycle. Key trigger: pilot-scale demonstration with sustained catalyst lifetime under industrial conditions.

Discussed by: Researchers at Yale, University of Missouri, and publications including Fuel Cells Works and Nature Catalysis

Consensus —

Perovskite Stability Issues Delay Commercial Rollout

Perovskite cells still degrade faster than silicon under heat, humidity, and UV exposure. While researchers have achieved 1,200-hour stability in laboratory conditions, commercial solar installations require 25-year lifetimes. If field reliability falls short of warranties, tandem technology could stall at the premium niche stage.

Discussed by: Academic researchers in ACS Energy Letters and Nature Photonics; industry analysts tracking commercialization timelines

Consensus —

Earth-Abundant Catalysts Displace Precious Metals Across Industries

The manganese catalyst breakthrough follows a broader pattern of replacing platinum, ruthenium, and palladium with cheaper alternatives. If similar ligand design strategies succeed for other reactions, the $30+ billion precious-metal catalyst market could see significant disruption, reducing both costs and supply-chain vulnerabilities.

Discussed by: Chemical industry publications and sustainability researchers studying catalyst markets

Consensus —

Historical Context

Bell Labs Silicon Solar Cell (1954)

April 1954

What Happened

Scientists Calvin Fuller, Daryl Chapin, and Gerald Pearson at Bell Telephone Laboratories demonstrated the first practical silicon solar cell, converting 6% of sunlight to electricity. Previous selenium cells managed less than 1%. Bell announced the invention on April 25, 1954, calling it a possible source of unlimited power from the sun.

Outcome

Short Term

The technology was too expensive for consumer use, costing about $300 per watt. Early applications focused on spacecraft, where cost mattered less than weight and reliability.

Long Term

Silicon photovoltaics became the dominant solar technology. By 2025, costs had dropped to around $0.20 per watt and efficiency approached the theoretical limit, driving the search for tandem architectures.

Why It's Relevant Today

The 6% efficiency of 1954 established the baseline that tandem cells have now multiplied nearly sixfold. Each efficiency breakthrough compounds the economic case for solar power.

The Shockley-Queisser Limit (1961)

1961

What Happened

William Shockley and Hans-Joachim Queisser calculated that single-junction solar cells cannot exceed approximately 33% efficiency due to fundamental thermodynamic constraints. Photons below the bandgap pass through unused; photons above it waste excess energy as heat. This limit became the theoretical ceiling for silicon technology.

Outcome

Short Term

The calculation redirected research toward multi-junction cells that could capture different portions of the solar spectrum with different materials.

Long Term

The limit held as an apparent ceiling for commercial silicon cells for over 60 years. Only tandem architectures—adding a perovskite layer to capture high-energy photons—have decisively broken through.

Why It's Relevant Today

LONGi's 34.85% tandem cell exceeds the Shockley-Queisser limit by nearly 2 percentage points. This represents not just incremental improvement but a fundamental shift in what silicon-based solar can achieve.

Platinum Catalyst Replacement in Fuel Cells (2000s-present)

2000-present

What Happened

Fuel cell development was long constrained by reliance on platinum catalysts, which cost over $30,000 per ounce and faced supply limitations. Researchers pursued alternatives using iron, cobalt, and nickel with varying success. The challenge was matching platinum's catalytic activity and durability with earth-abundant materials.

Outcome

Short Term

Some alternatives achieved comparable initial performance but degraded rapidly, limiting practical applications.

Long Term

Improved understanding of catalyst design—particularly ligand modifications and atomic-level engineering—gradually closed the performance gap. Non-precious-metal catalysts now serve in some commercial fuel cell applications.

Why It's Relevant Today

The Yale-Missouri manganese catalyst follows this trajectory, achieving superior performance through clever molecular design rather than expensive materials. The ligand modification approach could transfer to other catalyst challenges.