Joule

Top Research Topics at Joule?

The journal generally zeroes in on subjects such as Chemical engineering, Perovskite (structure), Optoelectronics, Electrolyte and Battery (electricity). While Chemical engineering is the focus of the journal, it also provided insights into the studies of Cathode, Redox, Electrochemistry and Catalysis. It connects the study in Catalysis with the closely related area of Electrocatalyst.

The Perovskite (structure) works featured in the journal incorporate elements from Photovoltaics, Halide, Engineering physics and Solar cell. The journal addresses concerns in Optoelectronics which are intertwined with other disciplines, such as Tandem and Photovoltaic system. The studies in Electrolyte featured incorporate elements of Anode and Nanotechnology.

Anode study tackled is connected to the field of Lithium. The journal focuses on Battery (electricity) as well as the interrelated topic of Energy storage. The featured Energy conversion efficiency studies mainly concentrate on Organic solar cell but also cover areas of interest in Acceptor.

• Chemical engineering (18.85%)
• Perovskite (structure) (12.54%)
• Optoelectronics (12.44%)

What are the most cited papers published in the journal?

• Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core (1928 citations)
• Single-Atom Catalysts: Synthetic Strategies and Electrochemical Applications (755 citations)
• Methylammonium Chloride Induces Intermediate Phase Stabilization for Efficient Perovskite Solar Cells (535 citations)

Research areas of the most cited articles at Joule:

The published articles mainly tackle studies in Chemical engineering, Electrolyte, Nanotechnology, Anode and Battery (electricity). The journal articles hold forums on Chemical engineering that merge themes from other disciplines such as Catalysis, Metal and Phase (matter). The Electrolyte research presented in the published papers focuses mostly on Electrochemistry and, on occasion, topics in Redox.

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

Top authors and change over time

The top authors publishing in Joule (based on the number of publications) are:

• Brandon R. Sutherland (42 papers) absent at the last edition,
• Yi Cui (17 papers) absent at the last edition,
• Rahul Malik (15 papers) absent at the last edition,
• Edward H. Sargent (12 papers) published 2 papers at the last edition, 1 less than at the previous edition,
• He Yan (10 papers) published 4 papers at the last edition the same number as at the previous edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Top affiliations and change over time

Only papers with recognized affiliations are considered

The top affiliations publishing in Joule (based on the number of publications) are:

• Chinese Academy of Sciences (80 papers) published 18 papers at the last edition, 11 more than at the previous edition,
• Massachusetts Institute of Technology (78 papers) published 17 papers at the last edition, 2 less than at the previous edition,
• Stanford University (55 papers) published 6 papers at the last edition, 6 less than at the previous edition,
• National Renewable Energy Laboratory (48 papers) published 19 papers at the last edition, 8 more than at the previous edition,
• Lawrence Berkeley National Laboratory (42 papers) published 11 papers at the last edition, 1 more than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 4.61% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 36.71% were posted by at least one author from the top 10 institutions publishing in the journal. Another 12.56% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 17.87% of all publications and 32.85% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

• Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
• Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
• Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
• Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
• Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.