Explanipedia

Bias‐Dependent Quantum Efficiency Reveals Recombination Pathways in Thin Film Solar Cells Open

Abasi Abudulimu, Scott Wenner, Adam B. Phillips, Chungho Lee, Deng‐Bing Li , et al. · 2025

Identifying where recombination predominantly occurs—whether at the front interface, back interface, or throughout the bulk—is crucial for optimizing CdSeTe solar cells and many other photovoltaic device architectures. Here, a simple and e…

Pressure‐Assisted Ni 3d–S 3p Hybridization within Targeted In–S Layer for Enhanced Photocatalytic Hydrogen Production Open

Bo Shao, Tianyun Liu, Deng‐Bing Li, Linxing Meng, Jianyuan Wang , et al. · 2025

Solar‐driven hydrogen production is significant for achieving carbon neutrality but is limited by unsatisfactory surface catalytic reaction kinetics. Layer regulation can impact carrier transmission or catalytic behavior, but the specific …

Comprehensive Study of Carrier Recombination in High‐Efficiency CdTe Solar Cells Using Transient Photovoltage Open

Abasi Abudulimu, Steven Carter, Adam B. Phillips, Deng‐Bing Li, Sabin Neupane , et al. · 2024

Cadmium telluride (CdTe) solar cells represent a commercially successful photovoltaic technology, with an annual production capacity approaching 20 GW. However, improving the open‐circuit voltage ( V OC ) remains challenging. This study ai…

17.2% Efficient CdSexTe1−x solar cell with (InxGa1−x)2O3 emitter on lightweight and flexible glass Open

Manoj K. Jamarkattel, Ali Abbas, Xavier Mathew, Sabin Neupane, Ebin Bastola , et al. · 2024

High-efficiency, lightweight, and flexible solar cells are sought for a variety of applications particularly when high power density and flexible form factors are desired. Development of solar cells on flexible substrates may also offer pr…

Approach to determining the limiting recombination mechanism in CdTe-based solar cells Open

Adam B. Phillips, Jared D. Friedl, Kamala Khanal Subedi, Zhaoning Song, Ramez Hosseinian Ahangharnejhad , et al. · 2024

Determining exactly how the performance of a thin-film photovoltaic device is limited by a particular recombination mechanism can be difficult, particularly in the case of CdTe solar cells. As a result, efforts are being made to improve al…

Seed‐Assisted Growth for Scalable and Efficient Perovskite Solar Modules Open

You Li, Yi Zhang, Jaehoon Chung, Manoj Rajakaruna, Muhammad Mohsin Saeed , et al. · 2023

Perovskite solar modules (PSMs) have shown remarkable photovoltaic potentials, but they still suffer from large power conversion efficiency (PCE) loss on scale‐up and instability due to inferior uniformity and crystallization over large ar…

Understanding and Advancing Bifacial Thin Film Solar Cells under Dual Illumination Open

Adam B. Phillips, Jared D. Friedl, Philip Ottinger, Steven Carter, Zhaoning Song , et al. · 2023

There is a great deal of interest in increasing the energy yield from thin film solar cells by implementing bifacial operation. However, deleterious band bending and high interface recombination at the back transparent electrode can cause …

Passivation strategies for enhancing device performance of perovskite solar cells Open

Zhifang Wu, Enbing Bi, Luis K. Ono, Deng‐Bing Li, Osman M. Bakr , et al. · 2023

Incorporating Potassium Citrate to Improve the Performance of Tin‐Lead Perovskite Solar Cells Open

Lei Chen, Chongwen Li, Yeming Xian, Sheng Fu, Abasi Abudulimu , et al. · 2023

Easy‐to‐form tin vacancies at the buried interface of tin‐lead perovskites hinder the performance of low‐bandgap perovskite solar cells (PSCs). Here, a synergistic strategy by incorporating potassium citrate (PC) into the poly(3,4‐ethylene…

Charge Extraction and Recombination Dynamics of CdSe/CdTe Solar Cells Studied with Transient Photovoltage/Photocurrent Techniques Open

Abasi Abudulimu, Deng‐Bing Li, Lei Chen, José Santos, Iwan Zimmermann , et al. · 2023

Significant advancements have been made in the development of high-performance cadmium telluride (CdTe)-based thin film solar cells. However, studies examining the transient excited-state charge dynamics, which determine the final steady-s…

Water-Assisted Lift-Off Process for Flexible CdTe Solar Cells Open

Sandip S. Bista, Deng‐Bing Li, Suman Rijal, Sabin Neupane, Rasha A. Awni , et al. · 2023

In recent years, various lift-off methods have been developed to fabricate lightweight and flexible cadmium telluride (CdTe)-based solar cells. In this work, we report flexible cadmium sulfide (CdS)/CdTe solar cells using a water-assisted …

Approach to Determining the Limiting Recombination Mechanism in Cdte-Based Solar Cells Open

Adam B. Phillips, Jared D. Friedl, Kamala Khanal Subedi, Zhaoning Song, Ramez Hosseinian Ahangharnejhad , et al. · 2023

20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction Open

Deng‐Bing Li, Sandip S. Bista, Rasha A. Awni, Sabin Neupane, Abasi Abudulimu , et al. · 2022

Bandgap gradient is a proven approach for improving the open-circuit voltages (V OC s) in Cu(In,Ga)Se 2 and Cu(Zn,Sn)Se 2 thin-film solar cells, but has not been realized in Cd(Se,Te) thin-film solar cells, a leading thin-film solar cell t…

Indium Gallium Oxide Emitters for High-Efficiency CdTe-Based Solar Cells Open

Manoj K. Jamarkattel, Adam B. Phillips, Indra Subedi, Abasi Abudulimu, Ebin Bastola , et al. · 2022

There are limited choices for front-surface, electron-selective contacts (emitters) for CdTe solar cells, thus hindering scientific and technical development. Here we investigate the photovoltaic performance of devices fabricated with (Inx…

Templated Growth and Passivation of Vertically Oriented Antimony Selenide Thin Films for High‐Efficiency Solar Cells in Substrate Configuration Open

Suman Rijal, Deng‐Bing Li, Rasha A. Awni, Chuanxiao Xiao, Sandip S. Bista , et al. · 2021

Antimony selenide (Sb 2 Se 3 ) is a promising low‐cost photovoltaic material with a 1D crystal structure. The grain orientation and defect passivation play a critical role in determining the performance of polycrystalline Sb 2 Se 3 thin‐fi…

Low-temperature and effective ex situ group V doping for efficient polycrystalline CdSeTe solar cells Open

Deng‐Bing Li, Canglang Yao, S. N. Vijayaraghavan, Rasha A. Awni, Kamala Khanal Subedi , et al. · 2021

Enabling bifacial thin film devices by developing a back surface field using CuxAlOy Open

Kamala Khanal Subedi, Adam B. Phillips, Niraj Shrestha, Fadhil K. Alfadhili, Anna Osella , et al. · 2021

Back-Surface Passivation of CdTe Solar Cells Using Solution-Processed Oxidized Aluminum Open

Fadhil K. Alfadhili, Adam B. Phillips, Kamala Khanal Subedi, Craig L. Perkins, Adam Halaoui , et al. · 2020

Although back-surface passivation plays an important role in high-efficiency photovoltaics, it has not yet been definitively demonstrated for CdTe. Here, we present a solution-based process, which achieves passivation and improved electric…

CuSCN as the Back Contact for Efficient ZMO/CdTe Solar Cells Open

Deng‐Bing Li, Zhaoning Song, Sandip S. Bista, Fadhil K. Alfadhili, Rasha A. Awni , et al. · 2020

The replacement of traditional CdS with zinc magnesium oxide (ZMO) has been demonstrated as being helpful to boost power conversion efficiency of cadmium telluride (CdTe) solar cells to over 18%, due to the reduced interface recombination …

Measurement of band offsets and shunt resistance in CdTe solar cells through temperature and intensity dependence of open circuit voltage and photoluminescence Open

C. H. Swartz, Sadia R. Rab, Sanjoy Paul, Maikel F. A. M. van Hest, Benjia Dou , et al. · 2019

Improving Performance and Stability of Planar Perovskite Solar Cells through Grain Boundary Passivation with Block Copolymers Open

Changlei Wang, Zhaoning Song, Dewei Zhao, Rasha A. Awni, Chongwen Li , et al. · 2019

Organic–inorganic metal halide perovskite solar cells (PSCs) exhibit excellent photovoltaic performance but have the drawbacks of instabilities against moisture and heat due to the inherent hydroscopic nature and volatility of their organi…

Stable and efficient CdS/Sb2Se3 solar cells prepared by scalable close space sublimation Open

Deng‐Bing Li, Xinxing Yin, Corey R. Grice, Lei Guan, Zhaoning Song , et al. · 2018

All‐Inorganic Bismuth‐Based Perovskite Quantum Dots with Bright Blue Photoluminescence and Excellent Stability Open

Meiying Leng, Ying Yang, Kai Zeng, Zhengwu Chen, Zhifang Tan , et al. · 2017

Lead halide perovskite quantum dots (QDs) possess color‐tunable and narrow‐band emissions and are very promising for lighting and display applications, but they suffer from lead toxicity and instability. Although lead‐free Bi‐based and Sn‐…

Enhanced Sb2Se3solar cell performance through theory-guided defect control Open

Xinsheng Liu, Xun Xiao, Ye Yang, Ding‐Jiang Xue, Deng‐Bing Li , et al. · 2017

Defects present in the absorber layer largely dictate photovoltaic device performance. Recently, a binary photovoltaic material, Sb₂Se₃, has drawn much attention due to its low-cost and nontoxic constituents and rapid…

Improving the Performance of PbS Quantum Dot Solar Cells by Optimizing ZnO Window Layer Open

Xiaokun Yang, Long Hu, Hui Deng, Keke Qiao, Chao Hu , et al. · 2017

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