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Efficient perovskite solar cells via improved carrier management

An improved device design for perovskite-based photovoltaic cells enables a certified power conversion efficiency of 25.2 per cent, translating to 80.5 per cent of the thermodynamic limit for its bandgap, which approaches those achieved by silicon solar cells.

Jason J. Yoo
Gabkyung Seo
Jangwon Seo
Research24 Feb 2021
Nature

Volume: 590, P: 587-593
Roll-to-roll gravure-printed flexible perovskite solar cells using eco-friendly antisolvent bathing with wide processing window

Driven by recent improvement in efficiency and stability of perovskite solar cells, the next step toward commercialisation is upscaling. Here, the authors demonstrate pilot-scale fully roll-to-roll manufacturing of flexible perovskite solar cells through gravure-printing and antisolvent bathing.

Young Yun Kim
Tae-Youl Yang
Jangwon Seo
ResearchOpen Access13 Oct 2020
Nature Communications

Volume: 11, P: 1-11
Understanding how excess lead iodide precursor improves halide perovskite solar cell performance

Excess lead iodide in the mixed halide perovskites solar cells leads to high device performance but its origin remains elusive. Here Park et al. unveil the underlying microscopic mechanism to be promoting the oriented growth of the perovskites crystals and reducing the defect concentration.

Byung-wook Park
Nir Kedem
Sang Il Seok
ResearchOpen Access17 Aug 2018
Nature Communications

Volume: 9, P: 1-8
A fluorene-terminated hole-transporting material for highly efficient and stable perovskite solar cells

Interfacial losses between device layers play a key role in determining characteristics of solar cells. Jeon et al. address this in perovskite solar cells by synthesizing a hole-transporting layer that is better matched to the surrounding layers, and show high-efficiency and high-stability devices.

Nam Joong Jeon
Hyejin Na
Jangwon Seo
Research09 Jul 2018
Nature Energy

Volume: 3, P: 682-689
Clustering micropollutants and estimating rate constants of sorption and biodegradation using machine learning approaches

Seung Ji Lim
Jangwon Seo
Seok Won Hong
ResearchOpen Access28 Oct 2023
npj Clean Water

Volume: 6, P: 1-10
Efficient, stable and scalable perovskite solar cells using poly(3-hexylthiophene)

A double-layered halide architecture for perovskite solar cells enables the use of dopant-free poly(3-hexylthiophene) as a hole-transport material, forming stable and scalable devices with a certified power conversion efficiency of 22.7 per cent.

Eui Hyuk Jung
Nam Joong Jeon
Jangwon Seo
Research27 Mar 2019
Nature

Volume: 567, P: 511-515
Compositional engineering of perovskite materials for high-performance solar cells

Inorganic–organic lead halide perovskite could be efficient when used as the light-harvesting component of solar cells; here incorporation of methylammonium lead bromide into formamidinium lead iodide stabilizes the perovskite and improves the power conversion efficiency of the solar cell up to 17.9 per cent.

Nam Joong Jeon
Jun Hong Noh
Sang Il Seok
Research07 Jan 2015
Nature

Volume: 517, P: 476-480
Automated BigSMILES conversion workflow and dataset for homopolymeric macromolecules

Sunho Choi
Joonbum Lee
Junhee Seok
ResearchOpen Access11 Apr 2024
Scientific Data

Volume: 11, P: 1-9
Grid-wise simulation acceleration of the electromagnetic fields of 2D optical devices using super-resolution

Jangwon Seo
Insoo Kim
Junhee Seok
ResearchOpen Access06 Mar 2023
Scientific Reports

Volume: 13, P: 1-10

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