New breakthrough in perovskite solar cell technology, investors rush to buy nine stocks

The Securities Times reporter Liang Qiangang

Perovskite solar cells (000591) have long faced a catch-22 between efficiency and lifespan—boosting photoelectric conversion efficiency often comes at the cost of long-term stability, while extending service life tends to reduce efficiency performance; this pain point seriously constrains their path to commercialization.

According to a report from the Science and Technology Daily, researchers from the Korea Institute of Science and Technology have recently taken a different approach: through a modified “2D passivation layer design,” they precisely regulate the microstructure of the passivation layer on the surface of perovskite cells, successfully achieving conversion efficiency of over 25% along with excellent long-term stability, effectively addressing this industry challenge.

The domestic perovskite cell industry has also made breakthrough progress. Recently, a single-junction perovskite solar cell independently developed by Hua Rouguangke Technology (Wenzhou) Co., Ltd., an incubated enterprise from the National University Science Park in Wenzhou, was certified by the authoritative National PV Industry Measurement & Testing Center (NPVM). Under standard solar illumination, its photoelectric conversion efficiency reached 27.98%, setting a new world (600628) record.

On March 19, the first Megawatt-level production base—focused on ultra-lightweight, high-performance flexible perovskite photovoltaic cells—held its first production line open day event in Zhuji, Zhejiang, at Shang Rouguang (Zhejiang) Co., Ltd. This marks that ultra-lightweight flexible perovskite technology has officially entered the stage of large-scale mass production.

Multiple institutions are optimistic about the future development prospects of perovskite cells. A research report from China Galaxy Securities (601881) states that perovskite/silicon tandem cells use perovskite-type compounds as the light-absorbing layer, offering advantages such as high theoretical conversion efficiency, low material costs, and relatively simple fabrication processes; it is viewed as one of the important future directions for photovoltaic technology.

In terms of market size, a related report from the China Business Information Research Institute shows that in 2024, China’s perovskite cell market size reached approximately RMB 1.32 billion, and it is expected to reach RMB 3.75 billion in 2025, and RMB 95 billion by 2030.

Caitian Securities believes that, given the compatibility between perovskite tandem and crystalline silicon capacity, and with a turning point in cost-effectiveness already having emerged, crystalline silicon leading companies are also expected to expand production along GW lines in 2026.

According to statistics from Securities Times·Data Treasure, as of the close on March 31, perovskite cell concept stocks had an average gain of 10.92% since the beginning of the year, outperforming the Shanghai Composite Index over the same period. Among them, Liansheng Technology, Taimi Sunergy (002218), JEPTECH, Delong Laser, and Sinosun (300393) ranked in the top five by cumulative gain.

From the perspective of fund flows, as of the close on March 30, there were 9 perovskite cell concept stocks with net financing purchases exceeding RMB 100 million since March.

Weir Share’s net financing purchases since March totaled RMB 675 million, ranking first. The company previously said on an investor interaction platform that the company’s perovskite process equipment has achieved key progress; the trial machines for large-area inkjet printing equipment, thermal evaporation equipment, and atomic layer deposition (ALD) equipment for core steps were successfully developed and applied, accelerating the move of perovskite tandem cells toward mass production.

Other perovskite concept stocks with leading net financing purchases since March include BOE A, JinkoSolar, China Petroleum (601857), Hongxing TDK (002056), and Giniko Technology (600586), among others.

(Data in this edition is provided by the Securities Times Center database.) Image source: AI-generated

（责任编辑：张洋 HN080）

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