June 2026

PV equipment manufacturer Maxwell Technologies has delivered its first commercial perovskite‑silicon heterojunction (HJT) tandem solar cell production line to an undisclosed customer.

According to Maxwell, the new line is designed for 210 mm half‑cut, full‑area perovskite‑HJT tandem cells. It incorporates upgraded precision equipment control, an enhanced manufacturing environment, and improved production stability to support process verification and future capacity ramp‑up.

Beihang University researchers have developed a “pre-assembly co-anchoring” strategy to address longstanding interfacial limitations in carbazole-based self-assembled monolayers (SAMs) used as hole transport layers (HTLs) in perovskite solar cells (PSCs).

Carbazole-based SAMs are widely employed in inverted (p-i-n) PSC architectures due to their tunable electronic properties and ability to selectively extract holes. However, their practical performance is often limited by weak interactions with NiOx substrates and a tendency toward molecular self-aggregation. These issues lead to incomplete surface coverage, pinhole formation, and poor interfacial contact, ultimately causing severe non-radiative recombination losses and reductions in open-circuit voltage (VOC) and fill factor (FF). To overcome these challenges, the team introduced a multifunctional co-assembling molecule, 3-(trifluoromethyl)benzoic acid (TFPA), into the SAM system alongside MeO-2PACz. 

Hanwha Solutions’ Qcells division (Hanwha Qcells) has announced it will serve as the lead institution in a new South Korean government research and development project focused on commercial‑area perovskite/crystalline silicon tandem solar modules.

The three‑year project, which began in April 2026, is part of the national Energy Technology Development Program overseen by the Ministry of Climate, Energy and Environment and the Korea Energy Technology Evaluation and Planning (KETEP). Under the R&D agreement titled “Technology development and demonstration of commercial‑area perovskite/crystalline silicon tandem modules,” Qcells will head a consortium of nine organizations, including domestic companies, research institutes and universities.

CATL has signed an expanded strategic cooperation agreement with China Energy Conservation and Environmental Protection Group (CECEP), placing perovskite solar technology at the center of their joint roadmap for next‑generation clean energy solutions. The partnership covers next‑generation photovoltaic technologies, sodium‑ion and lithium‑ion energy storage systems, zero‑carbon infrastructure and overseas green mining projects, with a clear emphasis on accelerating the commercialization of emerging low‑carbon technologies including perovskite PV.

A key goal of the agreement is the industrialization and large‑scale manufacturing of perovskite solar products, reflecting the partners’ view that crystalline silicon is nearing its efficiency limits and that perovskite materials offer significantly higher theoretical conversion efficiencies as a promising next‑generation PV platform. CATL will contribute its expertise in advanced energy materials and battery technologies, while CECEP will provide application scenarios, project development capabilities and complementary materials technologies, with the aim of building scalable perovskite PV manufacturing capacity and strengthening their position in future clean‑energy markets.

This is a sponsored post by KYOCERA Document Solutions Inc.

The performance of perovskite solar cells is not determined by the material itself alone. How we engineer the "buried interface" between the electrode and the perovskite at the molecular level can make a decisive difference—one that directly impacts charge extraction, reproducibility, and ultimately stability. Kyocera Document Solutions and the National Institute for Materials Science (NIMS) focused on the "number" and "arrangement" of methoxy groups introduced into self-assembled monolayers (SAMs). By elucidating how differences in molecular design—namely C21 versus C22—affect everything from work-function control to defect density, film formation, and device performance, the team presented design guidelines for SAMs in inverted (p–i–n) perovskite solar cells (PSCs).

The study, which focuses on methoxy-functionalized conjugated SAMs as hole-selective contacts, has been published in the international scientific journal ACS Applied Materials & Interfaces (DOI: 10.1021/acsami.6c04007).

Chinese perovskite PV company Microquanta has introduced a new series of perovskite-silicon tandem modules at a recent exhibition in Germany, targeting building‑integrated PV (BIPV) façade applications.

The new MQ‑α² products combine Microquanta’s four‑terminal perovskite-silicon tandem architecture with architect‑oriented colored finishes designed for façades. According to the company, the tandem structure is intended to compensate for the efficiency losses that typically occur when solar modules are modified for aesthetic purposes, allowing higher energy yields than conventional decorative BIPV panels.

Researchers from HZB, Bielefeld University, University of Applied Sciences (HTW) Berlin, University of Ljubljana and Ben-Gurion University of the Negev have identified how to realistically accelerate and replicate real‑world degradation in perovskite solar cells (PSCs) by carefully tuning light intensity and electrical bias, rather than relying solely on high‑temperature stress.

The team started from a central challenge in perovskite photovoltaics: long‑term stability remains the missing “golden triangle” corner for large‑scale commercialization, and existing accelerated ageing protocols do not always mirror what actually happens outdoors over many months or years. To address this, they directly compared PSCs that had undergone 20 months of natural outdoor operation in Berlin with freshly fabricated devices exposed to controlled indoor stress conditions.

Researchers from the University of Nevada Las Vegas, Lawrence Berkeley National Laboratory, International Kazakh-Turkish University, University of California and Argonne National Laboratory have developed a data-driven roadmap to reliably enhance the chiroptical response of chiral 2D metal halide perovskite (MHP) thin films. Chiral 2D MHPs are emerging as a versatile materials platform for advanced optoelectronic and spin-optoelectronic devices, but their absorption dissymmetry factor (g_abs), a key measure of interaction with circularly polarized light, has been notoriously difficult to reproduce across laboratories. By moving beyond empirical trial-and-error, the team established a comprehensive statistical framework that links synthesis conditions directly to chiroptical performance.

The researchers combined Pearson’s correlation, ANOVA, and Gaussian process regression to systematically map how structural, morphological, and experimental parameters affect g_abs. The analysis identifies solvent choice as the dominant synthesis “knob”: films processed from acetonitrile (ACN) show higher and more reproducible g_abs values than those prepared from dimethylformamide (DMF) or mixed acetonitrile:dimethyl sulfoxide (ACN:DMSO) systems. For ACN-based films, the modeling further reveals clear optimization windows, where tuning annealing temperature and film thickness allows g_abs to be maximized in a controlled manner rather than by intuition.

SND Display has announced that its “Vision Foundry” project has been selected as a first-phase preliminary research project under the Korean Ministry of SMEs and Startups’ “2026 Deep Tech Challenge Project (DCP) Ecosystem Innovation Model”. The selection will enable the consortium to further define its technological roadmap, commercialization strategy, and ecosystem-building plans as it targets the next-generation display market, with a strong focus on perovskite-based microdisplays.

The Vision Foundry project is led by SND Display, with Professor Lee Taewoo of Seoul National University serving as the consortium head. Participating members include small and medium-sized companies such as Aurum Material, Toprun Material Solution, and Alpha Plus, together with researchers from Seoul National University, Korea University, and KAIST. In addition, Samsung Display is involved in the project, establishing an industry–academia–research collaboration framework around perovskite display technology.

Verde Technologies has outlined its strategy to expand into high-value applications, with a particular focus on the space sector as an early commercialization pathway for its perovskite solar technology.

The company is developing ultra-lightweight, flexible thin-film perovskite solar panels designed to deliver high power-to-weight ratios - an essential requirement for space-based applications. Compared to conventional silicon photovoltaics, such technologies could offer significant advantages in reducing launch costs and improving system efficiency. Verde says its materials are compatible with roll-to-roll manufacturing, enabling lower capital expenditure compared to traditional PV production methods. The company believes this approach could ultimately reduce the cost of solar energy by up to 50%, while also supporting scalable manufacturing.