About Us

Over 20 years dedicated to solar PV, delivering high-quality photovoltaic solutions to customers worldwide.

Our Story

JOYOSOLAR

JOYOSOLAR was founded in 2022 at the Wuhan Overseas Students Entrepreneurship Park. The founding team has dedicated years to perovskite photovoltaic technology, driven by the ideal of contributing to the nation through academia. The company is committed to the design and development of perovskite material technology, perovskite photovoltaic modules and processes, related equipment, low-carbon manufacturing, and market-oriented applications. Based on verifiable technical indicators, the company will develop phased products and actively promote the early industrialization of low-cost, high-efficiency new perovskite photovoltaic technology, providing new technical options for achieving the goals of carbon peak and carbon neutrality.

JOYOSOLAR

Milestones

timeline
PHASE 01
Wuhan, China

Wuhan, China

Rigid/Flexible Perovskite Solar Cell R&D Center
Rigid/Flexible Perovskite Photovoltaic Device Analysis and Testing Center
Rigid/Flexible Photovoltaic Module Analysis and Reliability Testing Center
Rigid/Flexible Perovskite Solar Cell Production Base
Phase I capacity: 1,660 units/day
PHASE 02
Huazhong University of Science and Technology, Wuhan, China - Chen Wei / Liu Zonghao Team

Huazhong University of Science and Technology, Wuhan, China - Chen Wei / Liu Zonghao Team

Wuhan National Laboratory for Optoelectronics
Chen Wei / Liu Zonghao team
Cutting-edge research: foundational formulations | latest structures | theoretical studies
Talent development: joint training | resource sharing | talent pipeline
Joint project development: open challenge projects | development | testing and analysis
PHASE 03
JOYOSOLAR

JOYOSOLAR

Hong Kong Jiuyao Optoelectronics Trading Co., Ltd.
JOYOSOLAR International Trade
Founder of our company

Founder

Prof. Chen Wei

Prof. Chen Wei

Chief Scientist

B.S. and Ph.D. from Tsinghua University; postdoctoral researcher at HKUST and visiting scholar at NIMS, Japan

Recipient of the National Ten Thousand Talent Program Leading Scientist, Young Top-Notch Talent, and National Science Fund for Excellent Young Scholars

Listed among the world's top 2% of scientists with lifetime scientific impact

Author of more than 130 SCI papers in journals including Science and Nature; holder of over 30 granted patents

An early explorer, continuous innovator, and industrialization practitioner in inverted perovskite solar cells

Achieved the world's first certified efficiency record for inverted perovskite solar cells, recognized on authoritative efficiency tables

Obtained the world's first third-party stability certification report for perovskite modules issued to an academic institution

Led 8 national-level projects, including key programs under the National Key R&D Plan and NDRC open-challenge projects

Qualifications

ISO 9001 Quality Management System Certification

ISO 9001 Quality Management System Certification

ISO 14001 Environmental Management System Certification

ISO 14001 Environmental Management System Certification

ISO 45001 Occupational Health and Safety Management System Certification

ISO 45001 Occupational Health and Safety Management System Certification

Patents

Science 15%

Science 15%

30.31%

30.31%

16.63%

16.63%

17.28%

17.28%

22.6%

22.6%

24.5%

24.5%

Third-Party Stability Report

Third-Party Stability Report

20.36%

20.36%

20.3%

20.3%

22.7%

22.7%

25.6%

25.6%

28.8%

28.8%

25.6%

25.6%

26.5%

26.5%

19.54%

19.54%

19.54%

19.54%

27.57%

27.57%

Honors

2024 Seed Unicorn Enterprise
2025 Seed Unicorn Enterprise
Specialized and Innovative Small and Medium Enterprise
Optics Valley Gazelle Enterprise
2024 China Top 10 Advances in Optics
Member Unit of the Perovskite Specialized Committee
High-Tech Enterprise
Beijing Municipal Science and Technology Award

Process & Showcase Flow

Mass Production Process

Slot-Die Coating

Slot-Die Coating

Slot-die coating moves perovskite modules from lab to GW-scale production. A precision die extrudes precursor solution through a micron-level gap for uniform large-area films, supporting rigid and flexible substrates with nanometer-level thickness control. Combined with in-situ crystallization control and an air knife, it eliminates edge effects and pinholes and keeps dead area below 3% in a 0.6m x 1.2m module, enabling high-yield, high-uniformity production at lower cost per watt.

Laser Edge Cleaning

Laser Edge Cleaning

Laser edge cleaning

Laser Cutting

Laser Cutting

Laser cutting

Lamination and Encapsulation

Lamination and Encapsulation

Lamination and encapsulation

Strict Quality Control

Automated Batch Efficiency Testing

Automated Batch Efficiency Testing

Automated batch efficiency testing

EL Inspection

EL Inspection

EL inspection

Visual Appearance Inspection

Visual Appearance Inspection

Visual appearance inspection

Automatic Marking and Batch Tracking

Automatic Marking and Batch Tracking

Automatic marking and batch tracking

Core Reliability Testing

Light Aging at Different Temperatures

Light Aging at Different Temperatures

Light aging at different temperatures

Damp Heat Aging

Damp Heat Aging

Damp heat aging

UV Aging

UV Aging

UV aging

Flexible Bending Resistance Test

Flexible Bending Resistance Test

Flexible bending resistance test

Testing Capabilities

PID Degradation Test (Potential-Induced Degradation)
IV Characteristic Test (STC Standard Conditions)
Low-Light Performance Test (200-1000 lux)
Temperature Coefficient Test (-40 C to +85 C)
Damp Heat Aging Test (85 C / 85% RH)
UV Aging Test (UV 0-100 kWh/m2)
Thermal Cycling Test (-40 C to +85 C)
LID Light-Induced Degradation Test
Bending Cycle Test (Flexible Module)
PID Degradation Test (Potential-Induced Degradation)

PID Degradation Test (Potential-Induced Degradation)

Contact Us

Address / Phone / Email

Contact Information

Address

Phone

Email

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