NovaSolix

Carbon nanotube antenna solar cells

Newark, CA
Cleantech
novasolix.com

Raised to date

$4.1M

across 2 Form D filings

Still open: $5.1M
Investors: 11
Last filed: Jul 15, 2026

About

NovaSolix develops rectenna-based solar devices that convert sunlight to electricity using nanoscale carbon nanotube antenna arrays instead of conventional photovoltaic junctions. Because the antennas are sized to the wavelengths of sunlight, the device harvests energy across the spectrum from infrared to ultraviolet rather than the narrow band a PV cell captures. The company was founded in 2015 in Newark, California and states it holds over 40 granted and pending patents. Its process is designed to run on standard semiconductor fabrication equipment.

Replaces the photovoltaic junction with a nanoscale antenna-and-rectifier array, which the company says captures 2.5x more of the solar spectrum, delivers up to 4x the power density of conventional solar (400 W/m2 vs 195 W/m2), and works in low light and at steep incidence angles.

Funding

Now

$125K

$9M equity round, first sold Apr 2026$3.9M sold, $5.1M still openApr 2026JunAugOct

$9M round, first sold Apr 2026$3.9M sold$5.1M still openApr 2026Jul

Now

Form D filings
Filed	Security	Sold of offered	Filing
Jul 15, 2026	Security to be acquired	$125K/ no target	Form D
Apr 22, 2026	Equity	$3.9M/ $9M	Form D/A

Security to be acquiredFiled Jul 15, 2026Form D
$125K/ no target
EquityFiled Apr 22, 2026Form D/A
$3.9M/ $9M

Product

Carbon nanotube rectenna solar array

Solar energy hardware

A solar energy device built from arrays of carbon nanotube antennas paired with rectifiers, which convert incident solar radiation directly into electrical output across ultraviolet through infrared wavelengths.

Carbon nanotube antennas matched to nanoscale wavelengths of sunlight
Spectral capture from ultraviolet through infrared, ~2.5x conventional solar
Power density up to 400 W/m2 versus ~195 W/m2 for conventional panels
Theoretical efficiency of 80-90% versus 33-34% for conventional photovoltaics
Generates power in low light and at steep incidence angles
Manufacturable on standard semiconductor fabrication equipment

Built for

AI and data center operators, electric vehicle and mobility infrastructure, aerospace and off-grid operations, utility-scale solar and grid infrastructure, and consumer electronics

People on file

Named on Form D filings

Richard T. PrestonChief Executive Officer, Form D signerForm D signer Harry AshtonMr. Asthon's suffix is IV. To date Mr. Ashton has not acted as a promoter. His classification as a promoter is protective.Justin David HamiltonTo date Mr. Hamilton has not acted as a promoter. His classification as a promoter is protective.